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stringlengths 36
1.9k
| versions
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5
| update_date
timestamp[ms]date 2007-05-23 00:00:00
2025-10-08 00:00:00
| authors_parsed
listlengths 1
264
| vector
unknown |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2207.04628
|
Karl Winsor
|
Karl Winsor
|
Dense real Rel flow orbits and absolute period leaves
|
32 pages, comments welcome
| null | null | null |
math.DS math.GT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show the existence of a dense orbit for real Rel flows on the area-1 locus
of every connected component of every stratum of holomorphic 1-forms with at
least 2 distinct zeros. For this purpose, we establish a general density
criterion for ${\rm SL}(2,\mathbb{R})$-orbit closures, based on finding an
orbit of a real Rel flow whose closure contains a horocycle. This criterion can
be verified using explicit constructions of holomorphic 1-forms with a periodic
horizontal foliation. Our constructions also provide explicit examples of dense
leaves of the absolute period foliation and many subfoliations of these loci.
|
[
{
"version": "v1",
"created": "Mon, 11 Jul 2022 04:58:52 GMT"
},
{
"version": "v2",
"created": "Fri, 23 Dec 2022 06:20:19 GMT"
}
] | 2022-12-26T00:00:00
|
[
[
"Winsor",
"Karl",
""
]
] |
"7HuAfwKRM6B4cvVbZ0jw8WRr5sW0jrO51FcgbV999VA6+VpVT05F2u6fe231w7yjwQ7lq1OoGV0JKXxoREpdlFq54MQT0VTYXP2WTb9iNBHN6DyAa4h5r4in6tuNB7y4gLI/X9Y5o8/Cxf2qiu5GY8WajI12zeMwTFeGEhMqnz4="
|
physics/0602125
|
Ruggero Santilli Maria
|
Ruggero Maria Santilli
|
The Novel ''Controlled Intermediate Nuclear Fusion'' and its Possible
Industrial Realization as Predicted by Hadronic Mechanics and Chemistry
|
32 pages, 5 figures. Journal of Applied Sciences, in press
| null |
10.3923/jas.2007.1679.1698
|
IBR-TP-09-05
|
physics.gen-ph
| null |
In this note, we propose, apparently for the first time, a new type of
controlled nuclear fusion called "intermediate" because occurring at energies
intermediate between those of the ''cold'' and ''hot'' fusions, and propose a
specific industrial realization. For this purpose: 1) We show that known
limitations of quantum mechanics, quantum chemistry and special relativity
cause excessive departures from the conditions occurring for all controlled
fusions; 2) We outline the covering hadronic mechanics, hadronic chemistry and
isorelativity specifically conceived, constructed and verified during the past
two decades for new cleans energies and fuels; 3) We identify seven physical
laws predicted by the latter disciplines that have to be verified by all
controlled nuclear fusions to occur; 4) We review the industrial research
conducted to date in the selection of the most promising engineering
realization as well as optimization of said seven laws; and 5) We propose with
construction details a specific {\it hadronic reactor} (patented and
international patents pending), consisting of actual equipment specifically
intended for the possible industrial production of the clean energy released by
representative cases of controlled intermediate fusions for independent
scrutiny by interested colleagues.
|
[
{
"version": "v1",
"created": "Fri, 17 Feb 2006 22:25:18 GMT"
}
] | 2016-11-15T00:00:00
|
[
[
"Santilli",
"Ruggero Maria",
""
]
] |
"MHkYfJ6kGVtQGNWwdXp9MCf7VNX4n5PdRpd7WdFupN1IyBtdCoBJXmScOyHwQqfmUCvdkXesWE0LNl8o22g9B/kyqMQSbVC8HL38KfEiIHDBb74A6sSpKxio/QwPAZiJjj83loq6uMvmJZ/9nmPEg8fazp1/RYCyb3bWjDIWbys="
|
1809.07387
|
Frederic Moisy
|
St\'ephane Perrard, Adri\'an Lozano-Dur\'an, Marc Rabaud, Michael
Benzaquen and Fr\'ed\'eric Moisy
|
Turbulent windprint on a liquid surface
|
J. Fluid Mech. 2019 (in press)
|
J. Fluid Mech. 873, 1020-1054 (2019)
|
10.1017/jfm.2019.318
| null |
physics.flu-dyn physics.geo-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate the effect of a light turbulent wind on a liquid surface,
below the onset of wave generation. In that regime, the liquid surface is
populated by small disorganised deformations elongated in the streamwise
direction. Formally identified recently by Paquier et al. (2015), the
deformations that occur below the wave onset were named wrinkles. We provide
here a theoretical framework for this wrinkle regime, using the viscous
response of a free surface liquid submitted to arbitrary normal and tangential
interfacial stresses at its upper boundary. We relate the spatio-temporal
spectrum of the surface deformations to that of the applied interfacial
pressure and shear stress fluctuations. For that, we evaluate the
spatio-temporal statistics of the turbulent forcing using Direct Numerical
Simulation of a turbulent air channel flow, assuming no coupling between the
air and the liquid flows. Combining theory and numerical simulation, we thus
obtain synthetic wrinkles that reproduce previous experimental investigations.
We show that the wrinkles are a multi-scale superposition of random wakes
generated by the turbulent fluctuations. They result mainly from the nearly
isotropic pressure fluctuations generated in the boundary layer, rather than
from the elongated shear stress fluctuations. The wrinkle regime described in
this paper naturally arises as the viscous-saturated asymptotic of the inviscid
growth theory of Phillips (1957). Experiments indicate that the onset of
exponential wave growth depends on the liquid viscosity. Our theory suggests
that the empirical criterion for the onset is satisfied when the wrinkle
amplitude reaches a given fraction of the viscous sublayer thickness. It
indicates that the turbulent fluctuations near the onset may play a role in the
triggering of exponential wave growth.
|
[
{
"version": "v1",
"created": "Wed, 19 Sep 2018 19:45:12 GMT"
},
{
"version": "v2",
"created": "Fri, 12 Apr 2019 20:47:27 GMT"
}
] | 2020-12-01T00:00:00
|
[
[
"Perrard",
"Stéphane",
""
],
[
"Lozano-Durán",
"Adrián",
""
],
[
"Rabaud",
"Marc",
""
],
[
"Benzaquen",
"Michael",
""
],
[
"Moisy",
"Frédéric",
""
]
] |
"bEsAbRComR7RyFPRfHHMcWfjYZAEO7sfTkciyV/8/FlscBtVQgBJWCaH+2mVVrLjwAWgD3esWkWJ9H+IQ2pZGBsUItbTxk6eGHzgbNZiEGGCLpxAOaOpqry/51qKKq/pqjM1n7qqj+76cb9yImOmK5+KnKV3RaJgTgvWjLVfTD4="
|
2508.17186
|
Zhenghui Zhao
|
Zhenghui Zhao, Chen Wu, Di Wang, Hongruixuan Chen, Cuiqun Chen, Zhuo Zheng, Bo Du, Liangpei Zhang
|
Advancing Weakly-Supervised Change Detection in Satellite Images via Adversarial Class Prompting
| null | null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Weakly-Supervised Change Detection (WSCD) aims to distinguish specific object changes (e.g., objects appearing or disappearing) from background variations (e.g., environmental changes due to light, weather, or seasonal shifts) in paired satellite images, relying only on paired image (i.e., image-level) classification labels. This technique significantly reduces the need for dense annotations required in fully-supervised change detection. However, as image-level supervision only indicates whether objects have changed in a scene, WSCD methods often misclassify background variations as object changes, especially in complex remote-sensing scenarios. In this work, we propose an Adversarial Class Prompting (AdvCP) method to address this co-occurring noise problem, including two phases: a) Adversarial Prompt Mining: After each training iteration, we introduce adversarial prompting perturbations, using incorrect one-hot image-level labels to activate erroneous feature mappings. This process reveals co-occurring adversarial samples under weak supervision, namely background variation features that are likely to be misclassified as object changes. b) Adversarial Sample Rectification: We integrate these adversarially prompt-activated pixel samples into training by constructing an online global prototype. This prototype is built from an exponentially weighted moving average of the current batch and all historical training data. Our AdvCP can be seamlessly integrated into current WSCD methods without adding additional inference cost. Experiments on ConvNet, Transformer, and Segment Anything Model (SAM)-based baselines demonstrate significant performance enhancements. Furthermore, we demonstrate the generalizability of AdvCP to other multi-class weakly-supervised dense prediction scenarios. Code is available at https://github.com/zhenghuizhao/AdvCP
|
[
{
"version": "v1",
"created": "Sun, 24 Aug 2025 02:02:16 GMT"
}
] | 2025-08-26T00:00:00
|
[
[
"Zhao",
"Zhenghui",
""
],
[
"Wu",
"Chen",
""
],
[
"Wang",
"Di",
""
],
[
"Chen",
"Hongruixuan",
""
],
[
"Chen",
"Cuiqun",
""
],
[
"Zheng",
"Zhuo",
""
],
[
"Du",
"Bo",
""
],
[
"Zhang",
"Liangpei",
""
]
] |
"wGoMbIigUSZhndrV9WO+IySJQ4TEKvFH8kdG5912/djG+BJdxJFNWAYHe8d2waLtwA+hE32t2sOJqluNQ2MpRDsbqfQSxlerEriALP52EGmBOxzANoGurT6X4po6pD6AyqYVXbCuj+73ZJd+Z+WVv9/3mK1/cLMgTCNUn7E6Bq8="
|
2309.03816
|
Eneko Aranguren
|
Eneko Aranguren and Jos\'e A. Font and Nicolas Sanchis-Gual and Ra\"ul
Vera
|
Revisiting the $I$-Love-$Q$ relations for superfluid neutron stars
|
18 pages, 3 figures. Reference added, typos and minor corrections,
and some discussion expanded, to agree with the published version
| null | null | null |
gr-qc astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the tidal problem and the resulting $I$-Love-$Q$ approximate
universal relations for rotating superfluid neutron stars in the Hartle-Thorne
formalism. Superfluid stars are described in this work by means of a two-fluid
model consisting of superfluid neutrons and all other charged constituents. We
employ a stationary and axisymmetric perturbation scheme to second order around
a static and spherically symmetric background. Recently, we used this scheme to
study isolated rotating superfluid stars. In this paper it is applied to
analyze the axially symmetric sector of the tidal problem in a binary system.
We show that a consistent use of perturbative matching theory amends the
original two-fluid formalism for the tidal problem to account for the possible
non-zero value of the energy density at the boundary of the star. This is
exemplified by building numerically different stellar models spanning three
equations of state. Significant departures from universality are found when the
correct matching relations are not taken into account. We also present an
augmented set of universal relations for superfluid neutron stars which
includes the contribution to the total mass of the star at second order,
$\delta M$. Therefore, our results complete the set of universal relations for
rotating superfluid stars, generalizing our previous findings in the perfect
fluid case.
|
[
{
"version": "v1",
"created": "Thu, 7 Sep 2023 16:12:27 GMT"
},
{
"version": "v2",
"created": "Wed, 22 Nov 2023 14:36:28 GMT"
}
] | 2023-11-23T00:00:00
|
[
[
"Aranguren",
"Eneko",
""
],
[
"Font",
"José A.",
""
],
[
"Sanchis-Gual",
"Nicolas",
""
],
[
"Vera",
"Raül",
""
]
] |
"43iIfhqlKcpTWJqWnVv083nLZmC0BwNERdNnX7/utVyCWRZRWg5JXGaUeCTwZ+LywAzcx1esXl0Jph+AWEEthlm8oMdVZ1H3HB1kTd8mNPTDvhxAaYgpLL245o4MJbiJ6i83nXpIzd+mJZ9zpG4WY8Xb7gx2RaPgSoPUBqpRp3o="
|
1505.05336
|
Rita Bernabei
|
R. Bernabei (1), P. Belli (1), S. d'Angelo (1), A. Di Marco (1), F.
Montecchia (1,5), A. d'Angelo (2), A. Incicchitti (2), F. Cappella (3), V.
Caracciolo (3), R. Cerulli (3), C.J. Dai (4), H.L. He (4), H.H. Kuang (4),
X.H. Ma (4), X.D. Sheng (4), R.G. Wang (4), Z.P. Ye (4,6) ((1) Univ. Roma Tor
Vergata and INFN Roma Tor Vergata, (2) Univ. Roma and INFN Roma, (3) INFN
LNGS, (4) IHEP Beijing, (5) Univ. Tor Vergata, (6) Univ. Jing Gangshan)
|
Investigating Earth shadowing effect with DAMA/LIBRA-phase1
|
22 pages, 9 figures, 1 table; in publication on Eur. Phys. J. C
|
Eur. Phys. J. C 75 (2015) 239
|
10.1140/epjc/s10052-015-3473-y
| null |
hep-ph astro-ph.GA hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In the present paper the results obtained in the investigation of possible
diurnal effects for low-energy single-hit scintillation events of
DAMA/LIBRA-phase1 (1.04 ton $\times$ yr exposure) have been analysed in terms
of an effect expected in case of Dark Matter (DM) candidates inducing nuclear
recoils and having high cross-section with ordinary matter, which implies low
DM local density in order to fulfill the DAMA/LIBRA DM annual modulation
results. This effect is due to the different Earth depths crossed by those DM
candidates during the sidereal day.
|
[
{
"version": "v1",
"created": "Wed, 20 May 2015 12:06:53 GMT"
}
] | 2015-07-03T00:00:00
|
[
[
"Bernabei",
"R.",
""
],
[
"Belli",
"P.",
""
],
[
"d'Angelo",
"S.",
""
],
[
"Di Marco",
"A.",
""
],
[
"Montecchia",
"F.",
""
],
[
"d'Angelo",
"A.",
""
],
[
"Incicchitti",
"A.",
""
],
[
"Cappella",
"F.",
""
],
[
"Caracciolo",
"V.",
""
],
[
"Cerulli",
"R.",
""
],
[
"Dai",
"C. J.",
""
],
[
"He",
"H. L.",
""
],
[
"Kuang",
"H. H.",
""
],
[
"Ma",
"X. H.",
""
],
[
"Sheng",
"X. D.",
""
],
[
"Wang",
"R. G.",
""
],
[
"Ye",
"Z. P.",
""
]
] |
"5VnMfLrgOC5f0Jv3VXp0IQzrVMYYn7OJVtNqxcHrftyEeAqFUqw92m6fGyT+wqvgeAytUt+sGMoJKl+myWA5gRu+KU1STXi+Fz32aftiACiBexzQI8BNPTyu7v7OJayJgj+fvZp9r2+21JtgNsfEI03aGyx3W7I4QGPW3Lqax7g="
|
1809.01463
|
Danila Cherkashin
|
Mikhail Basok, Danila Cherkashin, Nikita Rastegaev, Yana Teplitskaya
|
On uniqueness in Steiner problem
| null | null | null | null |
math.MG math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove that the set of $n$-point configurations for which the solution of
the planar Steiner problem is not unique has the Hausdorff dimension at most
$2n-1$ (as a subset of $\mathbb{R}^{2n}$). Moreover, we show that the Hausdorff
dimension of the set of $n$-point configurations on which at least two locally
minimal trees have the same length is also at most $2n-1$. Methods we use
essentially require rely upon the theory of subanalytic sets developed
in~\cite{bierstone1988semianalytic}. Motivated by this approach we develop a
general setup for the similar problem of uniqueness of the Steiner tree where
the Euclidean plane is replace by an arbitrary analytic Riemannian manifold
$M$. In this setup we argue that the set of configurations possessing two
locally-minimal trees of the same length either has the dimension $n\dim M-1$
or has a non-empty interior. We provide an example of a two-dimensional surface
for which the last alternative holds.
In addition to abovementioned results, we study the set of set of $n$-point
configurations for which there is a unique solution of the Steiner problem in
$\mathbb{R}^d$. We show that this set is path-connected.
|
[
{
"version": "v1",
"created": "Wed, 5 Sep 2018 12:47:32 GMT"
},
{
"version": "v2",
"created": "Sat, 29 Sep 2018 08:35:32 GMT"
},
{
"version": "v3",
"created": "Tue, 21 Mar 2023 13:28:57 GMT"
}
] | 2023-03-22T00:00:00
|
[
[
"Basok",
"Mikhail",
""
],
[
"Cherkashin",
"Danila",
""
],
[
"Rastegaev",
"Nikita",
""
],
[
"Teplitskaya",
"Yana",
""
]
] |
"7OFIfoilvNjwsMv/fSdF+TJ78kG1D/JrAFU5jH397RBN9C41SgZN3m6EGq8zQ7RHxB51zAmMGE8BuBzpcEo8VN20oYAR4VTEEPwG6YFmFv2FeT3ATIAqKwKYooKdBr64pbenf9b64D+SRZf5Zq9HA9/alAh+VbPwSPrGNpcTHj4="
|
1910.01848
|
S{\o}ren Ulstrup
|
Klara Volckaert, Habib Rostami, Deepnarayan Biswas, Igor Markovi\'c,
Federico Andreatta, Charlotte E. Sanders, Paulina Majchrzak, Cephise Cacho,
Richard T. Chapman, Adam Wyatt, Emma Springate, Daniel Lizzit, Luca Bignardi,
Silvano Lizzit, Sanjoy K. Mahatha, Marco Bianchi, Nicola Lanata, Phil D. C.
King, Jill A. Miwa, Alexander V. Balatsky, Philip Hofmann and S{\o}ren
Ulstrup
|
Momentum-resolved linear dichroism in bilayer MoS$_2$
|
10 pages including supporting information, 3 figures in the main
paper and 4 figures in the supporting information
|
Phys. Rev. B 100, 241406 (2019)
|
10.1103/PhysRevB.100.241406
| null |
cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Inversion-symmetric crystals are optically isotropic and thus naively not
expected to show dichroism effects in optical absorption and photoemission
processes. Here, we find a strong linear dichroism effect (up to 42.4%) in the
conduction band of inversion-symmetric bilayer MoS$_2$, when measuring energy-
and momentum-resolved snapshots of excited electrons by time- and
angle-resolved photoemission spectroscopy. We model the polarization-dependent
photoemission intensity in the transiently-populated conduction band using the
semiconductor Bloch equations and show that the observed dichroism emerges from
intralayer single-particle effects within the isotropic part of the dispersion.
This leads to optical excitations with an anisotropic momentum-dependence in an
otherwise inversion symmetric material.
|
[
{
"version": "v1",
"created": "Fri, 4 Oct 2019 09:32:58 GMT"
}
] | 2019-12-18T00:00:00
|
[
[
"Volckaert",
"Klara",
""
],
[
"Rostami",
"Habib",
""
],
[
"Biswas",
"Deepnarayan",
""
],
[
"Marković",
"Igor",
""
],
[
"Andreatta",
"Federico",
""
],
[
"Sanders",
"Charlotte E.",
""
],
[
"Majchrzak",
"Paulina",
""
],
[
"Cacho",
"Cephise",
""
],
[
"Chapman",
"Richard T.",
""
],
[
"Wyatt",
"Adam",
""
],
[
"Springate",
"Emma",
""
],
[
"Lizzit",
"Daniel",
""
],
[
"Bignardi",
"Luca",
""
],
[
"Lizzit",
"Silvano",
""
],
[
"Mahatha",
"Sanjoy K.",
""
],
[
"Bianchi",
"Marco",
""
],
[
"Lanata",
"Nicola",
""
],
[
"King",
"Phil D. C.",
""
],
[
"Miwa",
"Jill A.",
""
],
[
"Balatsky",
"Alexander V.",
""
],
[
"Hofmann",
"Philip",
""
],
[
"Ulstrup",
"Søren",
""
]
] |
"JklEfqKAHD7SkADzlXpc9y37dHzkj8HHVJdv/3n0+VnNyEq9SFRt2i4fK+gY0LXjwRngQ328j9LtIFMgmjolSzG0qPET7FuGEr9ASrd0EniB/Y2ACUiIN6uM8LoFICihjz03jyrmpuviRLdhpO4jgt262atzVJJ0S/LQnHg8Djg="
|
2206.14428
|
Luca Guido Molinari
|
Luca Guido Molinari
|
Graphene nanocones and Pascal matrices
|
15 pages, 3 figures. Incongruences in notation have been removed
| null | null | null |
math.CO math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
I conjecture three identities for the determinant of adjacency matrices of
graphene triangles and trapezia with Bloch (and more general) boundary
conditions. For triangles, the parametric determinant is equal to the
characteristic polynomial of the symmetric Pascal matrix. For trapezia it is
equal to the determinant of a sub-matrix. Finally, the determinant of the tight
binding matrix equals its permanent. The conjectures are supported by analytic
evaluations and Mathematica, for moderate sizes. They establish connections
with counting problems of partitions, lozenge tilings of hexagons, dense loops
on a cylinder.
|
[
{
"version": "v1",
"created": "Wed, 29 Jun 2022 06:59:15 GMT"
},
{
"version": "v2",
"created": "Sun, 21 Aug 2022 04:47:29 GMT"
}
] | 2022-08-23T00:00:00
|
[
[
"Molinari",
"Luca Guido",
""
]
] |
"4XHMf6KDKbC4URP7bUL2t2Vp4Fi0pzNG1Idpfb3v3VDC4AsZSgZt3u6Xq6XRwb+ngA71QnuMHMGGpVw5UUk9UBu+YYQbYB6EEL4kabMwNlmA2QXAaoQ5LYM5ocopJBu5pyw3v9bTou/yRpX5CuYXA03aHCt/zrFSTPqUqio7Czw="
|
0910.4049
|
Nizami Gasilov
|
N. Gasilov, \c{S}ahin Emrah Amrahov, A. Golayoglu Fatullayev, H. I.
Karakas, O. Akin
|
A Geometric Approach to Solve Fuzzy Linear Systems
| null |
CMES: Computer Modeling in Engineering & Sciences, Vol. 75, No. 3,
pp. 189-204, 2011
|
10.3970/cmes.2011.075.189
| null |
cs.NA math.NA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, linear systems with a crisp real coefficient matrix and with a
vector of fuzzy triangular numbers on the right-hand side are studied. A new
method, which is based on the geometric representations of linear
transformations, is proposed to find solutions. The method uses the fact that a
vector of fuzzy triangular numbers forms a rectangular prism in n-dimensional
space and that the image of a parallelepiped is also a parallelepiped under a
linear transformation. The suggested method clarifies why in general case
different approaches do not generate solutions as fuzzy numbers. It is
geometrically proved that if the coefficient matrix is a generalized
permutation matrix, then the solution of a fuzzy linear system (FLS) is a
vector of fuzzy numbers irrespective of the vector on the right-hand side. The
most important difference between this and previous papers on FLS is that the
solution is sought as a fuzzy set of vectors (with real components) rather than
a vector of fuzzy numbers. Each vector in the solution set solves the given FLS
with a certain possibility. The suggested method can also be applied in the
case when the right-hand side is a vector of fuzzy numbers in parametric form.
However, in this case, -cuts of the solution can not be determined by geometric
similarity and additional computations are needed.
|
[
{
"version": "v1",
"created": "Wed, 21 Oct 2009 11:20:37 GMT"
},
{
"version": "v2",
"created": "Tue, 12 Apr 2011 08:06:58 GMT"
}
] | 2011-11-03T00:00:00
|
[
[
"Gasilov",
"N.",
""
],
[
"Amrahov",
"Şahin Emrah",
""
],
[
"Fatullayev",
"A. Golayoglu",
""
],
[
"Karakas",
"H. I.",
""
],
[
"Akin",
"O.",
""
]
] |
"Y/gMforjANwAnFMXd3JdczT5MWi9Z/Pr1EFTXb/6vxVrwAo9awBFyMyXu/E0wSbrQA7RjbGPGu0KoDmpQUv+QF0OqMByx16sELy0aFdmNB2JeIzAtoP9K107oNsIhK6Nn6K3vdQ6hXbiVh9tNmuXTY3eCCh+1qJgfPbErrd4fj8="
|
1903.11953
|
Pan Liu
|
Pan Liu and Carola-Bibiane Sch\"onlieb
|
Learning optimal orders of the underlying Euclidean norm in total
variation image denoising
| null | null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
A novel class of semi-norms, generalising the notion of the isotropic total
variation $TV_{2}$ and the an-isotropic total variation $TV_{1}$ is introduced.
A supervised learning method via bilevel optimisation is proposed for the
computation of optimal parameters for this class of regularizers. Existence of
solutions to the bilevel optimisation approach is proven. Moreover, a
finite-dimensional approximation scheme for the bilevel optimisation approach
is introduced that can numerically compute a global optimizer to any given
accuracy.
|
[
{
"version": "v1",
"created": "Thu, 28 Mar 2019 13:22:37 GMT"
}
] | 2019-03-29T00:00:00
|
[
[
"Liu",
"Pan",
""
],
[
"Schönlieb",
"Carola-Bibiane",
""
]
] |
"23EMLhzik6b8HlNXdUH0+iUdLsWea7s1DVd3Sd199RRl4DgNYQ1tWGaGe+fHwaDn4QaxlxGsnmUJujmhUEF5wJEbIeAbRl6kHr2AbPNiJN2Jrj3AFKH/LIe7pNkYpT64iqel/fwimQzGRZ/4Z2aXM5fZjJx23KN0TURQHlPSEio="
|
1606.05331
|
Bruce Smith
|
Bruce K. Smith
|
The Pattern Basis Approach to Circuit Complexity
|
101 pages, 4 figures
| null | null | null |
cs.CC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We describe and motivate a proposed new approach to lowerbounding the circuit
complexity of boolean functions, based on a new formalization of "patterns" as
elements of a special basis of the vector space of all truth table properties.
We prove that a "pattern basis" with certain properties would lead to a useful
complexity formula of a specific form, and speculate on how to find such a
basis. This formula might take as long to compute on arbitrary functions as a
brute-force search among circuits, thus addressing the natural proofs barrier,
but has a form amenable to proving lower bounds for well-understood explicit
functions.
|
[
{
"version": "v1",
"created": "Thu, 16 Jun 2016 19:43:28 GMT"
}
] | 2016-06-17T00:00:00
|
[
[
"Smith",
"Bruce K.",
""
]
] |
"6nIIf4yiFcpAHEM3dRMUuTw79AHEl7fDVGdMbH3/vRpf5Apd0oJtGEaWu9VzkbSl5A71xFGMGekAiG2sYjs81ZmUIUS6x1SnFL6krDpmRU2f6QWIcIAaKsyDs6M7pr6Ixq63vfayrn+iFJvrJi0WL93qmAh+f6FBT5LEjxubTL4="
|
1305.0551
|
Martin Laming
|
J. Martin Laming, J. Dan Moses, Yuan-Kuen Ko, Chee K. Ng, Cara E.
Rakowski, and Allan J. Tylka
|
On the Remote Detection of Suprathermal Ions in the Solar Corona and
their Role as Seeds for Solar Energetic Particle Production
|
15 pages, emulateapj, 6 figures, accepted by ApJ
| null |
10.1088/0004-637X/770/1/73
| null |
astro-ph.SR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Forecasting large Solar Energetic Particle (SEP) events associated with
shocks driven by fast coronal mass ejections (CME) pose a major difficulty in
the field of Space Weather. Besides issues associated with CME initiation, the
SEP intensities are difficult to predict, spanning 3 orders of magnitude at any
given CME speed. Many lines of indirect evidence point to the pre-existence of
suprathermal seed particles for injection into the acceleration process as a
key ingredient limiting the SEP intensity of a given event. This paper outlines
the observational and theoretical basis for the inference that a suprathermal
particle population is present prior to large SEP events, explores various
scenarios for generating seed particles and their observational signatures, and
explains how such suprathermals could be detected through measuring the wings
of the H I Ly-alpha line.
|
[
{
"version": "v1",
"created": "Thu, 2 May 2013 19:45:17 GMT"
}
] | 2019-08-19T00:00:00
|
[
[
"Laming",
"J. Martin",
""
],
[
"Moses",
"J. Dan",
""
],
[
"Ko",
"Yuan-Kuen",
""
],
[
"Ng",
"Chee K.",
""
],
[
"Rakowski",
"Cara E.",
""
],
[
"Tylka",
"Allan J.",
""
]
] |
"5fgAfoqgMQRZnGOffXs0EUfjZFwcK/fXQMOyS5HstFiI2QrFQqwNWiSPeyD49DHj8oyIg1Ms+N8J4ltkW0gpBVsSKMQ1TUf+kD3ySfIyEmDF6xYQrsEurbqN/lqPLLSprpc7B6C1n+/ipb9owWZE49/anqx3FJK8aCNSjCA8YTo="
|
1709.09746
|
Ma Yong-Liang
|
Yong-Liang Ma and Masayasu Harada
|
Chiral partner structure of doubly heavy baryons with heavy quark
spin-flavor symmetry
|
7 pages
| null |
10.1088/1361-6471/aac86e
| null |
hep-ph hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The spectrum of the doubly heavy baryons is estimated with respect to the new
observation from the LHCb collaboration [Aaij:2017ueg] by using the chiral
partner structure and heavy quark spin-flavor symmetry. The effects of heavy
quark flavor symmetry breaking and light quark flavor symmetry are considered.
The mass splitting of doubly heavy baryons with the same spin but opposite
parity arises from the generalized Goldberger-Treiman relation. The
intermultiplet one-pion transition and intramultiplet radiative transitions are
also be estimated.
|
[
{
"version": "v1",
"created": "Wed, 27 Sep 2017 21:53:18 GMT"
}
] | 2018-08-01T00:00:00
|
[
[
"Ma",
"Yong-Liang",
""
],
[
"Harada",
"Masayasu",
""
]
] |
"4EudfoqEPU5SEbZWvXL8/WRpX1Q0hrIERFcjVxpPrfzY2RvdGExtnySXNYBQQx3mwDt0c1msHl2IXH3wUSwdC4meqMRSzVO2Vl1MaPemqqDBVQcrdZu5PYiq5o1NIbyJiCe2v870Ftu2NfVptkZUQVTa2qt+QpN2QJLchDs7R/Q="
|
1707.03951
|
Shuang-Liang Li
|
Shuang-Liang Li, Fu-Guo Xie
|
A strong negative correlation between radio loudness $R_{\rm UV}$ and
optical-to-X-ray spectral index $\alpha_{\rm ox}$ in low-luminosity AGNs
|
8 pages, 3 figures, 2 tables. Accepted by MNRAS
| null |
10.1093/mnras/stx1778
| null |
astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
It has been argued for years that the accretion mode changes from bright
active galactic nuclei (AGNs) to low-luminosity AGNs (LLAGNs) at a rough
dividing point of bolometric Eddington ratio $\lambda \sim 10^{-2}$. In this
work, we strengthen this scenario through investigation of the relationship
between the radio loudness $R_{\rm UV}$ and the optical-to-X-ray spectral index
$\alpha_{\rm ox}$ in LLAGNs with $10^{-6} \lesssim \lambda \lesssim 10^{-3}$.
We compile from literature a sample of 32 LLAGNs, consisting 18 LINERs and 14
low Eddington ratio Seyfert galaxies, and observe a strong negative $R_{\rm
UV}$--$\alpha_{\rm ox}$ relationship, with large scatter in both $R_{\rm UV}$
and $\alpha_{\rm ox}$. We further demonstrate that this negative correlation,
and the additional two negative relationships reported in literature ($R_{\rm
UV}$--$\lambda$ and $\alpha_{\rm ox}$--$\lambda$ correlations), can be
understood consistently and comprehensively under the truncated accretion--jet
model, the model that has been applied successfully applied to LLAGNs. We argue
that the scatter in the observations are (mainly) due to the spread in the
viscosity parameter $\alpha$ of a hot accretion flow, a parameter that
potentially can serve as a diagnose of the strength and/or configuration of
magnetic fields in accretion flows.
|
[
{
"version": "v1",
"created": "Thu, 13 Jul 2017 01:51:07 GMT"
}
] | 2017-08-16T00:00:00
|
[
[
"Li",
"Shuang-Liang",
""
],
[
"Xie",
"Fu-Guo",
""
]
] |
"8EmBfAikm6hQTXlXbWn8c2fBZkCUt5HrQpNyz5jvLBjC2VrVQqgN2i6GOSjYz7LvgB2lN2esX9gJJR9MCXIxhRm8qcxyxxG+FLTmafYmmCnjXxawf8y4OaiJwlguKN6hiDEzmCnJj3/iUbpifOpMYsTbv613RNL8SQPalKAgzHg="
|
0706.0211
|
Joanne D. Cohn
|
J.D. Cohn, A.E. Evrard, M. White, D. Croton, E. Ellingson
|
Red Sequence Cluster Finding in the Millennium Simulation
|
final version to appear in MNRAS. Appendix added on purity and
completeness, small shift in red sequence due to correcting an error in
finding it
| null |
10.1111/j.1365-2966.2007.12479.x
| null |
astro-ph
| null |
We investigate halo mass selection properties of red-sequence cluster finders
using galaxy populations of the Millennium Simulation (MS). A clear red
sequence exists for MS galaxies in massive halos at redshifts z < 1, and we use
this knowledge to inform a cluster-finding algorithm applied to 500 Mpc/h
projections of the simulated volume. At low redshift (z=0.4), we find that 90%
of the clusters found have galaxy membership dominated by a single, real-space
halo, and that 10% are blended systems for which no single halo contributes a
majority of a cluster's membership. At z=1, the fraction of blends increases to
22%, as weaker redshift evolution in observed color extends the comoving length
probed by a fixed range of color. Other factors contributing to the increased
blending at high-z include broadening of the red sequence and confusion from a
larger number of intermediate mass halos hosting bright red galaxies of
magnitude similar to those in higher mass halos. Our method produces catalogs
of cluster candidates whose halo mass selection function, p(M|\Ngal,z), is
characterized by a bimodal log-normal model with a dominant component that
reproduces well the real-space distribution, and a redshift-dependent tail that
is broader and displaced by a factor ~2 lower in mass. We discuss implications
for X-ray properties of optically selected clusters and offer ideas for
improving both mock catalogs and cluster-finding in future surveys.
|
[
{
"version": "v1",
"created": "Fri, 1 Jun 2007 20:04:45 GMT"
},
{
"version": "v2",
"created": "Mon, 17 Sep 2007 14:21:06 GMT"
}
] | 2009-11-13T00:00:00
|
[
[
"Cohn",
"J. D.",
""
],
[
"Evrard",
"A. E.",
""
],
[
"White",
"M.",
""
],
[
"Croton",
"D.",
""
],
[
"Ellingson",
"E.",
""
]
] |
"8WiEXoimIm54SPtf5EpQembhVlS0v5kTUJd6bz1NtnhiWDNlV2gN6jafGy30G7Mj0I6Mnh0Mey+PCF/s0Ur1BBuUjcBR31aWVrx26F42MP3ZPS6ofki6LKiV+JmMoW6JgOe3p3i6ie/mRL9xpqfGg8zT3St3VJJwTNNejKAyLig="
|
cs/0505017
|
Merc\`e Claverol
|
Manuel Abellanas, Merc\`e Claverol, and Ferran Hurtado
|
Point set stratification and Delaunay depth
|
17 pages, 16 figures
| null | null | null |
cs.CG
| null |
In the study of depth functions it is important to decide whether we want
such a function to be sensitive to multimodality or not. In this paper we
analyze the Delaunay depth function, which is sensitive to multimodality and
compare this depth with others, as convex depth and location depth. We study
the stratification that Delaunay depth induces in the point set (layers) and in
the whole plane (levels), and we develop an algorithm for computing the
Delaunay depth contours, associated to a point set in the plane, with running
time O(n log^2 n). The depth of a query point p with respect to a data set S in
the plane is the depth of p in the union of S and p. When S and p are given in
the input the Delaunay depth can be computed in O(n log n), and we prove that
this value is optimal.
|
[
{
"version": "v1",
"created": "Sun, 8 May 2005 16:36:42 GMT"
}
] | 2007-05-23T00:00:00
|
[
[
"Abellanas",
"Manuel",
""
],
[
"Claverol",
"Mercè",
""
],
[
"Hurtado",
"Ferran",
""
]
] |
"ydMMboinBfrkFcC/d0IZuXQ7UKOUn7sD1FUjTV09/VTm4AwZw4B92YaGe632kfSj5F4wn1moGi0IqHmpcip9FL2ZIcBSwlaMEPiEeJZ2V+mJPj3IFMDjLBcT4Js6pb6BhKe3PfoiyaunRZN5RiUWi9/fhCx/HONQfIZUmzsbPis="
|
2401.17398
|
Cristian Stelea
|
Vitalie Lungu, Marina-Aura Dariescu, Ciprian Dariescu and Cristian
Stelea
|
Charged particles moving around a spherically symmetric dilatonic black
hole
|
27 pages, 9 figures, v3. major revision, added references. Matches
the published version
| null | null | null |
hep-th gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
For the static spherically symmetric dilatonic black hole described by the
Gibbons-Maeda-Garfinkle-Horowitz-Strominger geometry, we analyze the timelike
trajectories for electrically charged test particles. Both cases of an electric
black hole and a magnetic one are considered. Finally, we are obtaining the
solution to the Klein--Gordon equation in terms of Heun confluent functions and
the corresponding energy spectrum. A special attention is given to the role of
the dilaton parameter.
|
[
{
"version": "v1",
"created": "Tue, 30 Jan 2024 19:29:55 GMT"
},
{
"version": "v2",
"created": "Mon, 5 Feb 2024 19:50:40 GMT"
},
{
"version": "v3",
"created": "Sun, 12 May 2024 11:08:29 GMT"
}
] | 2024-05-14T00:00:00
|
[
[
"Lungu",
"Vitalie",
""
],
[
"Dariescu",
"Marina-Aura",
""
],
[
"Dariescu",
"Ciprian",
""
],
[
"Stelea",
"Cristian",
""
]
] |
"+lkcX5qBKN7QUBDXdVLU8W3jcmW8nzMtUNMbnZ++/VzgyEKlTUx4zi6fO+Tg4oDyoJZVy2PI3t0JNFpkWAQdDbueocRW51GcFL3qbNcmNLyBDDxAq4wpPK2pInMPAKyplDGzvZ4xgm/wRRbri+4EAUbazg1+DqPyZhfEFjq6qro="
|
physics/0601085
|
Kyung Hyuk Kim
|
Kyung Hyuk Kim and Hong Qian
|
Fluctuation Theorems of Brownian Particles Controlled by a Maxwell's
Demon
|
4 pages
|
Phys. Rev. E 75, 022102 (2007)
|
10.1103/PhysRevE.75.022102
| null |
physics.class-ph
| null |
We study the stochastic dynamics of Brownian particles in a heat bath and
subject to an active feedback control by an external, Maxwell's demon-like
agent. The agent uses the information of the velocity of a particle and reduces
its thermal agitation by applying a force. The entropy of the particle and the
heat bath as a whole, thus, reduces. Entropy pumping [Phys. Rev. Lett. 93,
120602 (2004)] quantifies the entropy reduction. We discover that the entropy
pumping has a dual role of work and heat contributing to free energy changes
and entropy production of the open-system with the feedback control.
Generalized Jarzynski equality and fluctuation theorems for work functional and
entropy production are developed with the presence of the entropy pumping.
|
[
{
"version": "v1",
"created": "Thu, 12 Jan 2006 10:43:49 GMT"
}
] | 2007-05-23T00:00:00
|
[
[
"Kim",
"Kyung Hyuk",
""
],
[
"Qian",
"Hong",
""
]
] |
"ZHoafrrlM1rQHBJ9fXF8MUfhdUVQI5PfZMdxq/9//BzE0EsYJwRvWuSH+yR1gqHj0gi5w+MuW8cNN34g+UN9DHkSKvEQ1xKuGpkwaPE0IFHFPhwAOYopLS2roVoMDhisnstl3pKKlO3CFa1vsmVUC8+fvi53DTK0TiPUz+IbUro="
|
2006.00058
|
Christopher George
|
Christopher A. George, Eduardo A. Barrera, Kenric P. Nelson
|
Applying the Decisiveness and Robustness Metrics to Convolutional Neural
Networks
| null | null | null | null |
cs.LG cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We review three recently-proposed classifier quality metrics and consider
their suitability for large-scale classification challenges such as applying
convolutional neural networks to the 1000-class ImageNet dataset. These
metrics, referred to as the "geometric accuracy," "decisiveness," and
"robustness," are based on the generalized mean ($\rho$ equals 0, 1, and -2/3,
respectively) of the classifier's self-reported and measured probabilities of
correct classification. We also propose some minor clarifications to
standardize the metric definitions. With these updates, we show some examples
of calculating the metrics using deep convolutional neural networks (AlexNet
and DenseNet) acting on large datasets (the German Traffic Sign Recognition
Benchmark and ImageNet).
|
[
{
"version": "v1",
"created": "Fri, 29 May 2020 20:05:06 GMT"
}
] | 2020-06-02T00:00:00
|
[
[
"George",
"Christopher A.",
""
],
[
"Barrera",
"Eduardo A.",
""
],
[
"Nelson",
"Kenric P.",
""
]
] |
"2upMfgiAmEgxBUIT/WKdOyR5QZfcq6FzBkdObJ199Vx20ApdJMANWEQWe9fG/KStxU75CRG8mk0puDqpY31pBQEeI+Rbwxa4FbCE6NYn9E2tP53oPgGWBW+T65grAL6ozK438ZaqjSqXVJP8Z2UUm0332Lh9eZIGfNJUGRWqHq4="
|
1902.03268
|
Sean Li
|
Sean Li
|
Stratified $\beta$-numbers and traveling salesman in Carnot groups
|
Proved new statements about insufficiency of non-stratified beta
numbers (Prop 1.4) as well as different characterizations of stratified betas
(Prop 1.6). Implemented referee suggested simplifications of many proofs.
Fixed many typos
| null | null | null |
math.MG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We introduce a modified version of P. Jones's $\beta$-numbers for Carnot
groups which we call {\it stratified $\beta$-numbers}. We show that an analogue
of Jones's traveling salesman theorem on 1-rectifiability of sets holds for any
Carnot group if we replace previous notions of $\beta$-numbers in Carnot groups
with stratified $\beta$-numbers. As we generalize both directions of the
traveling salesman theorem, we get a characterization of subsets of Carnot
groups that lie on finite length rectifiable curves. Our proof expands upon
previous analysis of the Hebisch-Sikora norm for Carnot groups. In particular,
we find new estimates on the drift between almost parallel line segments that
take advantage of the stratified $\beta$'s and also develop a Taylor expansion
technique of the norm. We also give an example of a Carnot group for which a
traveling salesman theorem based on the unmodified $\beta$-numbers must exhibit
a gap between the necessary and sufficient directions.
|
[
{
"version": "v1",
"created": "Fri, 8 Feb 2019 19:42:00 GMT"
},
{
"version": "v2",
"created": "Fri, 25 Jun 2021 11:37:54 GMT"
}
] | 2021-06-28T00:00:00
|
[
[
"Li",
"Sean",
""
]
] |
"6XsILoahMdRYVNXbdUTws2dt9dc0h7OzRVcx7fX95VRY+FkcWgVNWO6HOqXxw7XnwQ5RykusHE8EqXyjcGpdVrszocRTQXSUFH2+CMYm5jWOeTzIzIg4LoOhks4Nhbw5g7e9X1a7o3/CRb85gq9WY93fnAl+zfPwTPKMl7caijw="
|
2109.08237
|
Efrat Shimron
|
Efrat Shimron, Jonathan I. Tamir, Ke Wang, Michael Lustig
|
Subtle Data Crimes: Naively training machine learning algorithms could
lead to overly-optimistic results
|
16 pages, 7 figures, two tables. Submitted to a journal
| null | null | null |
cs.LG
|
http://creativecommons.org/licenses/by/4.0/
|
While open databases are an important resource in the Deep Learning (DL) era,
they are sometimes used "off-label": data published for one task are used for
training algorithms for a different one. This work aims to highlight that in
some cases, this common practice may lead to biased, overly-optimistic results.
We demonstrate this phenomenon for inverse problem solvers and show how their
biased performance stems from hidden data preprocessing pipelines. We describe
two preprocessing pipelines typical of open-access databases and study their
effects on three well-established algorithms developed for Magnetic Resonance
Imaging (MRI) reconstruction: Compressed Sensing (CS), Dictionary Learning
(DictL), and DL. In this large-scale study we performed extensive computations.
Our results demonstrate that the CS, DictL and DL algorithms yield
systematically biased results when naively trained on seemingly-appropriate
data: the Normalized Root Mean Square Error (NRMSE) improves consistently with
the preprocessing extent, showing an artificial increase of 25%-48% in some
cases. Since this phenomenon is generally unknown, biased results are sometimes
published as state-of-the-art; we refer to that as subtle data crimes. This
work hence raises a red flag regarding naive off-label usage of Big Data and
reveals the vulnerability of modern inverse problem solvers to the resulting
bias.
|
[
{
"version": "v1",
"created": "Thu, 16 Sep 2021 22:00:15 GMT"
},
{
"version": "v2",
"created": "Fri, 24 Sep 2021 01:31:51 GMT"
},
{
"version": "v3",
"created": "Tue, 14 Dec 2021 05:35:43 GMT"
}
] | 2021-12-15T00:00:00
|
[
[
"Shimron",
"Efrat",
""
],
[
"Tamir",
"Jonathan I.",
""
],
[
"Wang",
"Ke",
""
],
[
"Lustig",
"Michael",
""
]
] |
"oGlNLqwnEsrALbod52KkKyRBZNRUh7sHRld++vkvf1jG+CMdwhhtWAaWWdvG1aynxw65PZGsGg/oukmpSUElxUmAoPQTyla4FrigeLd2VG2FPz3BIo3yrY4V0QmehT6BzLsXfdi6j222ZJd8deUUk530HKl/VNJSTYPQHtCyNj0="
|
0706.1367
|
Jesus I?arrea
|
Jesus Inarrea
|
Anharmonic behavior in Microwave-driven resistivity oscillations in Hall
bars
|
3 pages, 2 figures. Accepted in Applied Physics Letters
| null |
10.1063/1.2751585
| null |
cond-mat.mes-hall
| null |
We analyzed the magnetoresistivity of a two-dimensional electron system
excited by microwave radiation in a regime of high intensities and low
frequencies. In such a regime, recent experiments show that different features
appear in the magnetoresistivity response which suggest an anharmonic behavior.
These features consist mainly in distorted oscillations and new resonance peaks
at the subharmonics of the cyclotron frequency. We follow the model of
microwave-driven electron orbits motion which become anharmonic when the ratio
of microwave intensity to microwave frequency is large enough.
|
[
{
"version": "v1",
"created": "Sun, 10 Jun 2007 17:56:08 GMT"
}
] | 2009-11-13T00:00:00
|
[
[
"Inarrea",
"Jesus",
""
]
] |
"dmgAXiKANJ5YkDv7tWvacRX7MFwQrdvPFlN+GflutnltWBt9SUTMeiaN+eU40rXjsBmwBfeO2dFpElNw2UQx6jW24OUS5VKyFb2GabVkAX3B/5wQY8NprYG4sQqNICqsi3N3j5q1hn7iBZdopOYDBp94XIp3ApGwQ9rSjnAwLrg="
|
1806.05128
|
Sven Jarohs
|
Nicola Abatangelo, Serena Dipierro, Mouhamed Moustapha Fall, Sven
Jarohs, Alberto Salda\~na
|
Positive powers of the Laplacian in the half-space under Dirichlet
boundary conditions
| null | null | null | null |
math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present explicit formulas for solutions to nonhomogeneous boundary value
problems involving any positive power of the Laplacian in the half-space. For
non-integer powers the operator becomes nonlocal and this requires a suitable
extension of Dirichlet-type boundary conditions. A key ingredient in our proofs
is a point inversion transformation which preserves harmonicity and allows us
to use known results for the ball. We include uniqueness statements, regularity
estimates, and describe the growth or decay of solutions at infinity and at the
boundary.
|
[
{
"version": "v1",
"created": "Wed, 13 Jun 2018 16:03:42 GMT"
},
{
"version": "v2",
"created": "Mon, 13 Aug 2018 06:27:35 GMT"
}
] | 2018-08-14T00:00:00
|
[
[
"Abatangelo",
"Nicola",
""
],
[
"Dipierro",
"Serena",
""
],
[
"Fall",
"Mouhamed Moustapha",
""
],
[
"Jarohs",
"Sven",
""
],
[
"Saldaña",
"Alberto",
""
]
] |
"af0AfKLlCafY+BP//Xj48yE/JHKcH8OVRBMX/TB/9VXt6ZxUYUxNWuaPO6QA4bXBiA+Ty3G8XkUMNHmhEUK9VFmcoJfT416sGF24TS7iMv2D7TzADMHrrZm7oUsJhKgoq7lnn9Bjoe/ARZrhK2U2Y9/bnIx2HfPwTFLWZiJbqro="
|
1404.0368
|
Ricardo W. Nunes
|
R. Longuinhos, E. A. Moujaes, S. S. Alexandre, and R. W. Nunes
|
Theoretical chemistry of $\alpha$-graphyne: functionalization, symmetry
breaking, and generation of Dirac-fermion mass
|
9 pages in two column format, 7 figures and 2 tables Submitted for
publication in Chemistry of Materials
| null | null | null |
cond-mat.mtrl-sci cond-mat.mes-hall
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We investigate the electronic structure and lattice stability of pristine and
functionalized (with either hydrogen or oxygen) $\alpha$-graphyne systems. We
identify lattice instabilities due to soft-phonon modes, and describe two
mechanisms leading to gap opening in the Dirac-fermion electronic spectrum of
these systems: symmetry breaking, connected with the lattice instabilities, and
partial incorporation of an $sp^3$-hybrid character in the covalent-bonding
network of a buckled hydrogenated $\alpha$-graphyne lattice that retains the
symmetries of the parent pristine $\alpha$-graphyne. In the case of an
oxygen-functionalized $\alpha$-graphyne structure, each O atom binds
asymmetrically to two twofold-coordinated C atoms, breaking inversion and
mirror symmetries, and leading to the opening of a sizeable gap of 0.22 eV at
the Dirac point. Generally, mirror symmetries are found to suffice for the
occurrence of gapless Dirac cones in these $\alpha$-graphyne systems, even in
the absence of inversion symmetry centers. Moreover, we analyze the gapless and
gapped Dirac cones of pristine and functionalized $\alpha$-graphynes from the
perspective of the dispersion relations for massless and massive free Dirac
fermions. We find that mirror-symmetry breaking mimics a Dirac-fermion
mass-generation mechanism in the oxygen-functionalized $\alpha$-graphyne,
leading to gap opening and to isotropic electronic dispersions with a rather
small electron-hole asymmetry. In the hydrogen-functionalized case, we find
that carriers show a remarkable anisotropy, behaving as massless fermions along
the M-K line in the Brillouin zone and as massive fermions along the $\Gamma$-K
line.
|
[
{
"version": "v1",
"created": "Tue, 1 Apr 2014 19:51:37 GMT"
}
] | 2014-04-02T00:00:00
|
[
[
"Longuinhos",
"R.",
""
],
[
"Moujaes",
"E. A.",
""
],
[
"Alexandre",
"S. S.",
""
],
[
"Nunes",
"R. W.",
""
]
] |
"NEkYXparDYBRkBHzbUtUtyVrZdSg58OPFYNvfXl+mVmZ+Bp9WgZt/myXewRQQafjwUrxQVe8TlOKMXygWUw9FD284IAX5RuGEBcES6RsAXiBfYwASAAoPSGMotoFIQqlji91h77jhf+yF5f55+ZkgMX63Cd/RLFQTZLQnDw+Tjo="
|
1207.4557
|
Enrico Bozzo
|
E. Bozzo, C. Ferrigno, M. Tuerler, A. Manousakis, and M. Falanga
|
IGRJ18179-1621: An obscured X-ray pulsar discovered by INTEGRAL
|
Accepted for publication on A&A V2. Corrected few typos
| null |
10.1051/0004-6361/201219344
| null |
astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report on all the INTEGRAL and Swift data collected during the first
outburst observed from IGRJ18179-1621. The broad-band spectral analysis showed
that the X-ray emission from the source is heavily absorbed (N_H~10^23 cm^-2),
and well described by a flat power-law with a high energy rollover (cutoff
energy 9-12 keV, e-folding energy 4-7 keV). We found some evidence of a
cyclotron absorption feature at 22\pm1 keV. Together with the pulsations at
11.8s discovered in the XRT data, this evidence would suggest that
IGRJ18179-1621 is an obscured magnetized accreting neutron star, possibly part
of a supergiant high mass X-ray binary or a Be X-ray binary system.
|
[
{
"version": "v1",
"created": "Thu, 19 Jul 2012 06:10:53 GMT"
},
{
"version": "v2",
"created": "Sun, 22 Jul 2012 05:37:15 GMT"
}
] | 2015-06-05T00:00:00
|
[
[
"Bozzo",
"E.",
""
],
[
"Ferrigno",
"C.",
""
],
[
"Tuerler",
"M.",
""
],
[
"Manousakis",
"A.",
""
],
[
"Falanga",
"M.",
""
]
] |
"YMmYfKrov4pzXXoyTUu052brZlT4jZMzRNNm/x2uOHzzWDpVVihofwaeeSRQ6LLq4J2Hg2esetmJtl/EWEAlFVueqMZUzUGyHblECvYmCmHxXQ4AKIHhPTyY4juMpbyJiAszlcsYhT+yxKtg4UJGIc3amr52X7KIWRPQlLo5a3w="
|
0912.1906
|
Gary Ballantyne Dr.
|
Gary J. Ballantyne
|
Envelope Soliton Oscillator for UWB
|
10 pages, 2 figures
| null | null | null |
nlin.PS nlin.AO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
An electronic oscillator is shown to support an envelope soliton pulse. The
oscillator comprises a loop, formed by a nonlinear transmission line, an
amplifier, a bandpass filter and a saturable absorber. The soliton is suitable
for ultra-wideband radio-frequency communication; its existence and stability
are demonstrated with simulations.
|
[
{
"version": "v1",
"created": "Thu, 10 Dec 2009 02:23:24 GMT"
}
] | 2009-12-11T00:00:00
|
[
[
"Ballantyne",
"Gary J.",
""
]
] |
"UMEAfqCinJh7kBL6Nfl1a0fzYXDQt/PLURN2dCl2cF3IiBqZYdRNXmaXuXW1waTnQD/tAHGmfsAo0FMBCZs403WWIMXzzcecHzH0bNoGMXXD6bRAKKbr+4y6ptoBgYygih0ln7q0x+e6BpdtAPoEBc9KgCh/9/H4SkPW3yoaTzw="
|
1312.6279
|
Michal Czakon
|
P. Baernreuther, M. Czakon and P. Fiedler
|
Virtual amplitudes and threshold behaviour of hadronic top-quark
pair-production cross sections
|
28 pages, 3 figures, 4 tables, results for the virtual amplitudes
attached in Mathematica format
| null |
10.1007/JHEP02(2014)078
|
TTK-13-28
|
hep-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present the two-loop virtual amplitudes for the production of a top-quark
pair in gluon fusion. The evaluation method is based on a numerical solution of
differential equations for master integrals in function of the quark velocity
and scattering angle starting from a boundary at high-energy. The results are
given for the renormalized infrared finite remainders on a large grid and have
recently been used in the calculation of the total cross sections at the
next-to-next-to-leading order. For convenience, we also give the known results
for the quark annihilation case on the same grid. Outside of the kinematical
range covered by the grid, we provide threshold and high-energy expansions.
From expansions of the two-loop virtual amplitudes, we determine the
threshold behavior of the total cross sections at next-to-next-to-leading order
for the quark annihilation and gluon fusion channels including previously
unknown constant terms. In our analysis of the quark annihilation channel, we
uncover the presence of a velocity enhanced logarithm of Coulombic origin,
which was missed in a previous study.
|
[
{
"version": "v1",
"created": "Sat, 21 Dec 2013 17:53:30 GMT"
}
] | 2015-06-18T00:00:00
|
[
[
"Baernreuther",
"P.",
""
],
[
"Czakon",
"M.",
""
],
[
"Fiedler",
"P.",
""
]
] |
"kHuYbhzEkF54WJLTVWuosAVL9FDUv589UBdP/5FrJdDsWAhZC05pnGSae6VwZ5b3yLi8g1ssHk8oMnsoUGg5BxvS6UUU31C+FTxsyP4mAlnJXw6I+4C4rbyP5u0NIbuIyiE3vsqzluu2pZ9p5UZEC8/azol+TpNkb1LcnKs7aj4="
|
2011.09622
|
Pouria Dadras
|
Pouria Dadras, Alexei Kitaev
|
Perturbative calculations of entanglement entropy
|
17 pages, 7 figures, fixing an error in section 3.5 has lead to a
much simpler result. An alternative, shorter derivation is given. (new
contributions by a new author, Pengfei Zhang.)
| null |
10.1007/JHEP03(2021)198
| null |
hep-th gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
This paper is an attempt to extend the recent understanding of the Page curve
for evaporating black holes to more general systems coupled to a heat bath.
Although calculating the von Neumann entropy by the replica trick is usually a
challenge, we have identified two solvable cases. For the initial section of
the Page curve, we sum up the perturbation series in the system-bath coupling
$\kappa$; the most interesting contribution is of order $2s$, where $s$ is the
number of replicas. For the saturated regime, we consider the effect of an
external impulse on the entropy at a later time and relate it to OTOCs. A
significant simplification occurs in the maximal chaos case such that the
effect may be interpreted in terms of an intermediate object, analogous to the
branching surface of a replica wormhole.
|
[
{
"version": "v1",
"created": "Thu, 19 Nov 2020 02:51:04 GMT"
},
{
"version": "v2",
"created": "Sun, 30 Oct 2022 19:28:58 GMT"
}
] | 2022-11-01T00:00:00
|
[
[
"Dadras",
"Pouria",
""
],
[
"Kitaev",
"Alexei",
""
]
] |
"cGkIfjrliUpYUDo/fWPwc0dLZBXUlzNFQlN57d3v7VFkWEjNQypI3uaHGaTw07PzQIw540O8W88JPL2KWEG1CluUoNESf1G2HJ8waHEkhNnFviUAa4hpKy2phhssDpyq4OXnjbq4he/2Fb9vqC4WA8/bfq53VZL0QdPUHyQTCjo="
|
2407.14839
|
ShiHong Ding
|
Shihong Ding, Long Yang, Luo Luo, Cong Fang
|
Optimizing over Multiple Distributions under Generalized
Quasar-Convexity Condition
| null | null | null | null |
math.OC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study a typical optimization model where the optimization variable is
composed of multiple probability distributions. Though the model appears
frequently in practice, such as for policy problems, it lacks specific analysis
in the general setting. For this optimization problem, we propose a new
structural condition/landscape description named generalized quasar-convexity
(GQC) beyond the realms of convexity. In contrast to original quasar-convexity
\citep{hinder2020near}, GQC allows an individual quasar-convex parameter
$\gamma_i$ for each variable block $i$ and the smaller of $\gamma_i$ implies
less block-convexity. To minimize the objective function, we consider a
generalized oracle termed as the internal function that includes the standard
gradient oracle as a special case. We provide optimistic mirror descent (OMD)
for multiple distributions and prove that the algorithm can achieve an adaptive
$\tilde{\mathcal{O}}((\sum_{i=1}^d1/\gamma_i)\epsilon^{-1})$ iteration
complexity to find an $epsilon$-suboptimal global solution without pre-known
the exact values of $\gamma_i$ when the objective admits "polynomial-like"
structural. Notably, it achieves iteration complexity that does not explicitly
depend on the number of distributions and strictly faster $(\sum_{i=1}^d
1/\gamma_i \text{ v.s. } d\max_{i\in[1:d]} 1/\gamma_i)$ than mirror decent
methods. We also extend GQC to the minimax optimization problem proposing the
generalized quasar-convexity-concavity (GQCC) condition and a decentralized
variant of OMD with regularization. Finally, we show the applications of our
algorithmic framework on discounted Markov Decision Processes problem and
Markov games, which bring new insights on the landscape analysis of
reinforcement learning.
|
[
{
"version": "v1",
"created": "Sat, 20 Jul 2024 10:47:34 GMT"
},
{
"version": "v2",
"created": "Thu, 24 Oct 2024 15:52:18 GMT"
}
] | 2024-10-25T00:00:00
|
[
[
"Ding",
"Shihong",
""
],
[
"Yang",
"Long",
""
],
[
"Luo",
"Luo",
""
],
[
"Fang",
"Cong",
""
]
] |
"0WIMfpygkerIOJMffWHUeQRbZ2aUQ7PRWVVzbf/+/lHiaCiZKg9tGi4GGv2kwaDn0Az9n1WMmumIihmtegx5DKMRqUD7R0SsnPxAaLsmNv2Nuh/IfoioroyLqJyPBZ6Y7KO1/PiujX3CRJv74C/SI13flDh/fLN0TGOGHtYCfq4="
|
1103.4250
|
Aya Ishihara
|
IceCube Collaboration: R. Abbasi, Y. Abdou, T. Abu-Zayyad, J. Adams,
J. A. Aguilar, M. Ahlers, K. Andeen, J. Auffenberg, X. Bai, M. Baker, S. W.
Barwick, R. Bay, J. L. Bazo Alba, K. Beattie, J. J. Beatty, S. Bechet, J. K.
Becker, K.-H. Becker, M. L. Benabderrahmane, S. BenZvi, J. Berdermann, P.
Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. Besson, D. Bindig, M.
Bissok, E. Blaufuss, J. Blumenthal, D. J. Boersma, C. Bohm, D. Bose, S.
B\"oser, O. Botner, J. Braun, A. M. Brown, S. Buitink, M. Carson, D. Chirkin,
B. Christy, J. Clem, F. Clevermann, S. Cohen, C. Colnard, D. F. Cowen, M. V.
D'Agostino, M. Danninger, J. Daughhetee, J. C. Davis, C. De Clercq, L.
Demir\"ors, T. Denger, O. Depaepe, F. Descamps, P. Desiati, G. de
Vries-Uiterweerd, T. DeYoung, J. C. D\'iaz-V\'elez, M. Dierckxsens, J.
Dreyer, J. P. Dumm, R. Ehrlich, J. Eisch, R. W. Ellsworth, O. Engdeg{\aa}rd,
S. Euler, P. A. Evenson, O. Fadiran, A. R. Fazely, A. Fedynitch, T. Feusels,
K. Filimonov, C. Finley, T. Fischer-Wasels, M. M. Foerster, B. D. Fox, A.
Franckowiak, R. Franke, T. K. Gaisser, J. Gallagher, M. Geisler, L. Gerhardt,
L. Gladstone, T. Gl\"usenkamp, A. Goldschmidt, J. A. Goodman, D. Gora, D.
Grant, T. Griesel, A. Gro{\ss}, S. Grullon, M. Gurtner, C. Ha, A. Hallgren,
F. Halzen, K. Han, K. Hanson, D. Heinen, K. Helbing, P. Herquet, S. Hickford,
G. C. Hill, K. D. Hoffman, A. Homeier, K. Hoshina, D. Hubert, W. Huelsnitz,
J.-P. H\"ul{\ss}, P. O. Hulth, K. Hultqvist, S. Hussain, A. Ishihara, J.
Jacobsen, G. S. Japaridze, H. Johansson, J. M. Joseph, K.-H. Kampert, A.
Kappes, T. Karg, A. Karle, J. L. Kelley, P. Kenny, J. Kiryluk, F. Kislat, S.
R. Klein, J.-H. K\"ohne, G. Kohnen, H. Kolanoski, L. K\"opke, S. Kopper, D.
J. Koskinen, M. Kowalski, T. Kowarik, M. Krasberg, T. Krings, G. Kroll, T.
Kuwabara, M. Labare, S. Lafebre, K. Laihem, H. Landsman, M. J. Larson, R.
Lauer, J. L\"unemann, J. Madsen, P. Majumdar, A. Marotta, R. Maruyama, K.
Mase, H. S. Matis, K. Meagher, M. Merck, P. M\'esz\'aros, T. Meures, E.
Middell, N. Milke, J. Miller, T. Montaruli, R. Morse, S. M. Movit, R.
Nahnhauer, J. W. Nam, U. Naumann, P. Nie{\ss}en, D. R. Nygren, S. Odrowski,
A. Olivas, M. Olivo, A. O'Murchadha, M. Ono, S. Panknin, L. Paul, C. P\'erez
de los Heros, J. Petrovic, A. Piegsa, D. Pieloth, R. Porrata, J. Posselt, P.
B. Price, G. T. Przybylski, K. Rawlins, P. Redl, E. Resconi, W. Rhode, M.
Ribordy, A. Rizzo, J. P. Rodrigues, P. Roth, F. Rothmaier, C. Rott, T. Ruhe,
D. Rutledge, B. Ruzybayev, D. Ryckbosch, H.-G. Sander, M. Santander, S.
Sarkar, K. Schatto, T. Schmidt, A. Sch\"onwald, A. Schukraft, A. Schultes, O.
Schulz, M. Schunck, D. Seckel, B. Semburg, S. H. Seo, Y. Sestayo, S.
Seunarine, A. Silvestri, A. Slipak, G. M. Spiczak, C. Spiering, M.
Stamatikos, T. Stanev, G. Stephens, T. Stezelberger, R. G. Stokstad, A.
St\"ossl, S. Stoyanov, E. A. Strahler, T. Straszheim, M. St\"ur, G. W.
Sullivan, Q. Swillens, H. Taavola, I. Taboada, A. Tamburro, A. Tepe, S.
Ter-Antonyan, S. Tilav, P. A. Toale, S. Toscano, D. Tosi, D. Tur\v{c}an, N.
van Eijndhoven, J. Vandenbroucke, A. Van Overloop, J. van Santen, M. Vehring,
M. Voge, C. Walck, T. Waldenmaier, M. Wallraff, M. Walter, Ch. Weaver, C.
Wendt, S. Westerhoff, N. Whitehorn, K. Wiebe, C. H. Wiebusch, D. R. Williams,
R. Wischnewski, H. Wissing, M. Wolf, T. R. Wood, K. Woschnagg, C. Xu, X. W.
Xu, G. Yodh, S. Yoshida, P. Zarzhitsky
|
Constraints on the Extremely-high Energy Cosmic Neutrino Flux with the
IceCube 2008-2009 Data
|
9 pages, 4 figures. This corresponds to the paper Phys.Rev.D 83,
092003(2011), and its erratum Phys.Rev.D 84, 079902(2011)
|
Phys.Rev.D83:092003(2011); Phys.Rev.D84:079902(2011)
|
10.1103/PhysRevD.83.092003 10.1103/PhysRevD.84.079902
| null |
astro-ph.CO astro-ph.IM hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We report on a search for extremely-high energy neutrinos with energies
greater than $10^6$ GeV using the data taken with the IceCube detector at the
South Pole. The data was collected between April 2008 and May 2009 with the
half completed IceCube array. The absence of signal candidate events in the
sample of 333.5 days of livetime significantly improves model independent limit
from previous searches and allows to place a limit on the diffuse flux of
cosmic neutrinos with an $E^{-2}$ spectrum in the energy range $2.0 \times
10^{6}$ $-$ $6.3 \times 10^{9}$ GeV to a level of $E^2 \phi \leq 3.6 \times
10^{-8}$ ${\rm GeV cm^{-2} sec^{-1}sr^{-1}}$.
|
[
{
"version": "v1",
"created": "Tue, 22 Mar 2011 12:07:38 GMT"
},
{
"version": "v2",
"created": "Thu, 19 May 2011 05:45:16 GMT"
},
{
"version": "v3",
"created": "Tue, 25 Oct 2011 06:12:31 GMT"
}
] | 2016-07-12T00:00:00
|
[
[
"IceCube Collaboration",
"",
""
],
[
"Abbasi",
"R.",
""
],
[
"Abdou",
"Y.",
""
],
[
"Abu-Zayyad",
"T.",
""
],
[
"Adams",
"J.",
""
],
[
"Aguilar",
"J. A.",
""
],
[
"Ahlers",
"M.",
""
],
[
"Andeen",
"K.",
""
],
[
"Auffenberg",
"J.",
""
],
[
"Bai",
"X.",
""
],
[
"Baker",
"M.",
""
],
[
"Barwick",
"S. W.",
""
],
[
"Bay",
"R.",
""
],
[
"Alba",
"J. L. Bazo",
""
],
[
"Beattie",
"K.",
""
],
[
"Beatty",
"J. J.",
""
],
[
"Bechet",
"S.",
""
],
[
"Becker",
"J. K.",
""
],
[
"Becker",
"K. -H.",
""
],
[
"Benabderrahmane",
"M. L.",
""
],
[
"BenZvi",
"S.",
""
],
[
"Berdermann",
"J.",
""
],
[
"Berghaus",
"P.",
""
],
[
"Berley",
"D.",
""
],
[
"Bernardini",
"E.",
""
],
[
"Bertrand",
"D.",
""
],
[
"Besson",
"D. Z.",
""
],
[
"Bindig",
"D.",
""
],
[
"Bissok",
"M.",
""
],
[
"Blaufuss",
"E.",
""
],
[
"Blumenthal",
"J.",
""
],
[
"Boersma",
"D. J.",
""
],
[
"Bohm",
"C.",
""
],
[
"Bose",
"D.",
""
],
[
"Böser",
"S.",
""
],
[
"Botner",
"O.",
""
],
[
"Braun",
"J.",
""
],
[
"Brown",
"A. M.",
""
],
[
"Buitink",
"S.",
""
],
[
"Carson",
"M.",
""
],
[
"Chirkin",
"D.",
""
],
[
"Christy",
"B.",
""
],
[
"Clem",
"J.",
""
],
[
"Clevermann",
"F.",
""
],
[
"Cohen",
"S.",
""
],
[
"Colnard",
"C.",
""
],
[
"Cowen",
"D. F.",
""
],
[
"D'Agostino",
"M. V.",
""
],
[
"Danninger",
"M.",
""
],
[
"Daughhetee",
"J.",
""
],
[
"Davis",
"J. C.",
""
],
[
"De Clercq",
"C.",
""
],
[
"Demirörs",
"L.",
""
],
[
"Denger",
"T.",
""
],
[
"Depaepe",
"O.",
""
],
[
"Descamps",
"F.",
""
],
[
"Desiati",
"P.",
""
],
[
"de Vries-Uiterweerd",
"G.",
""
],
[
"DeYoung",
"T.",
""
],
[
"Díaz-Vélez",
"J. C.",
""
],
[
"Dierckxsens",
"M.",
""
],
[
"Dreyer",
"J.",
""
],
[
"Dumm",
"J. P.",
""
],
[
"Ehrlich",
"R.",
""
],
[
"Eisch",
"J.",
""
],
[
"Ellsworth",
"R. W.",
""
],
[
"Engdegård",
"O.",
""
],
[
"Euler",
"S.",
""
],
[
"Evenson",
"P. A.",
""
],
[
"Fadiran",
"O.",
""
],
[
"Fazely",
"A. R.",
""
],
[
"Fedynitch",
"A.",
""
],
[
"Feusels",
"T.",
""
],
[
"Filimonov",
"K.",
""
],
[
"Finley",
"C.",
""
],
[
"Fischer-Wasels",
"T.",
""
],
[
"Foerster",
"M. M.",
""
],
[
"Fox",
"B. D.",
""
],
[
"Franckowiak",
"A.",
""
],
[
"Franke",
"R.",
""
],
[
"Gaisser",
"T. K.",
""
],
[
"Gallagher",
"J.",
""
],
[
"Geisler",
"M.",
""
],
[
"Gerhardt",
"L.",
""
],
[
"Gladstone",
"L.",
""
],
[
"Glüsenkamp",
"T.",
""
],
[
"Goldschmidt",
"A.",
""
],
[
"Goodman",
"J. A.",
""
],
[
"Gora",
"D.",
""
],
[
"Grant",
"D.",
""
],
[
"Griesel",
"T.",
""
],
[
"Groß",
"A.",
""
],
[
"Grullon",
"S.",
""
],
[
"Gurtner",
"M.",
""
],
[
"Ha",
"C.",
""
],
[
"Hallgren",
"A.",
""
],
[
"Halzen",
"F.",
""
],
[
"Han",
"K.",
""
],
[
"Hanson",
"K.",
""
],
[
"Heinen",
"D.",
""
],
[
"Helbing",
"K.",
""
],
[
"Herquet",
"P.",
""
],
[
"Hickford",
"S.",
""
],
[
"Hill",
"G. C.",
""
],
[
"Hoffman",
"K. D.",
""
],
[
"Homeier",
"A.",
""
],
[
"Hoshina",
"K.",
""
],
[
"Hubert",
"D.",
""
],
[
"Huelsnitz",
"W.",
""
],
[
"Hülß",
"J. -P.",
""
],
[
"Hulth",
"P. O.",
""
],
[
"Hultqvist",
"K.",
""
],
[
"Hussain",
"S.",
""
],
[
"Ishihara",
"A.",
""
],
[
"Jacobsen",
"J.",
""
],
[
"Japaridze",
"G. S.",
""
],
[
"Johansson",
"H.",
""
],
[
"Joseph",
"J. M.",
""
],
[
"Kampert",
"K. -H.",
""
],
[
"Kappes",
"A.",
""
],
[
"Karg",
"T.",
""
],
[
"Karle",
"A.",
""
],
[
"Kelley",
"J. L.",
""
],
[
"Kenny",
"P.",
""
],
[
"Kiryluk",
"J.",
""
],
[
"Kislat",
"F.",
""
],
[
"Klein",
"S. R.",
""
],
[
"Köhne",
"J. -H.",
""
],
[
"Kohnen",
"G.",
""
],
[
"Kolanoski",
"H.",
""
],
[
"Köpke",
"L.",
""
],
[
"Kopper",
"S.",
""
],
[
"Koskinen",
"D. J.",
""
],
[
"Kowalski",
"M.",
""
],
[
"Kowarik",
"T.",
""
],
[
"Krasberg",
"M.",
""
],
[
"Krings",
"T.",
""
],
[
"Kroll",
"G.",
""
],
[
"Kuwabara",
"T.",
""
],
[
"Labare",
"M.",
""
],
[
"Lafebre",
"S.",
""
],
[
"Laihem",
"K.",
""
],
[
"Landsman",
"H.",
""
],
[
"Larson",
"M. J.",
""
],
[
"Lauer",
"R.",
""
],
[
"Lünemann",
"J.",
""
],
[
"Madsen",
"J.",
""
],
[
"Majumdar",
"P.",
""
],
[
"Marotta",
"A.",
""
],
[
"Maruyama",
"R.",
""
],
[
"Mase",
"K.",
""
],
[
"Matis",
"H. S.",
""
],
[
"Meagher",
"K.",
""
],
[
"Merck",
"M.",
""
],
[
"Mészáros",
"P.",
""
],
[
"Meures",
"T.",
""
],
[
"Middell",
"E.",
""
],
[
"Milke",
"N.",
""
],
[
"Miller",
"J.",
""
],
[
"Montaruli",
"T.",
""
],
[
"Morse",
"R.",
""
],
[
"Movit",
"S. M.",
""
],
[
"Nahnhauer",
"R.",
""
],
[
"Nam",
"J. W.",
""
],
[
"Naumann",
"U.",
""
],
[
"Nießen",
"P.",
""
],
[
"Nygren",
"D. R.",
""
],
[
"Odrowski",
"S.",
""
],
[
"Olivas",
"A.",
""
],
[
"Olivo",
"M.",
""
],
[
"O'Murchadha",
"A.",
""
],
[
"Ono",
"M.",
""
],
[
"Panknin",
"S.",
""
],
[
"Paul",
"L.",
""
],
[
"Heros",
"C. Pérez de los",
""
],
[
"Petrovic",
"J.",
""
],
[
"Piegsa",
"A.",
""
],
[
"Pieloth",
"D.",
""
],
[
"Porrata",
"R.",
""
],
[
"Posselt",
"J.",
""
],
[
"Price",
"P. B.",
""
],
[
"Przybylski",
"G. T.",
""
],
[
"Rawlins",
"K.",
""
],
[
"Redl",
"P.",
""
],
[
"Resconi",
"E.",
""
],
[
"Rhode",
"W.",
""
],
[
"Ribordy",
"M.",
""
],
[
"Rizzo",
"A.",
""
],
[
"Rodrigues",
"J. P.",
""
],
[
"Roth",
"P.",
""
],
[
"Rothmaier",
"F.",
""
],
[
"Rott",
"C.",
""
],
[
"Ruhe",
"T.",
""
],
[
"Rutledge",
"D.",
""
],
[
"Ruzybayev",
"B.",
""
],
[
"Ryckbosch",
"D.",
""
],
[
"Sander",
"H. -G.",
""
],
[
"Santander",
"M.",
""
],
[
"Sarkar",
"S.",
""
],
[
"Schatto",
"K.",
""
],
[
"Schmidt",
"T.",
""
],
[
"Schönwald",
"A.",
""
],
[
"Schukraft",
"A.",
""
],
[
"Schultes",
"A.",
""
],
[
"Schulz",
"O.",
""
],
[
"Schunck",
"M.",
""
],
[
"Seckel",
"D.",
""
],
[
"Semburg",
"B.",
""
],
[
"Seo",
"S. H.",
""
],
[
"Sestayo",
"Y.",
""
],
[
"Seunarine",
"S.",
""
],
[
"Silvestri",
"A.",
""
],
[
"Slipak",
"A.",
""
],
[
"Spiczak",
"G. M.",
""
],
[
"Spiering",
"C.",
""
],
[
"Stamatikos",
"M.",
""
],
[
"Stanev",
"T.",
""
],
[
"Stephens",
"G.",
""
],
[
"Stezelberger",
"T.",
""
],
[
"Stokstad",
"R. G.",
""
],
[
"Stössl",
"A.",
""
],
[
"Stoyanov",
"S.",
""
],
[
"Strahler",
"E. A.",
""
],
[
"Straszheim",
"T.",
""
],
[
"Stür",
"M.",
""
],
[
"Sullivan",
"G. W.",
""
],
[
"Swillens",
"Q.",
""
],
[
"Taavola",
"H.",
""
],
[
"Taboada",
"I.",
""
],
[
"Tamburro",
"A.",
""
],
[
"Tepe",
"A.",
""
],
[
"Ter-Antonyan",
"S.",
""
],
[
"Tilav",
"S.",
""
],
[
"Toale",
"P. A.",
""
],
[
"Toscano",
"S.",
""
],
[
"Tosi",
"D.",
""
],
[
"Turčan",
"D.",
""
],
[
"van Eijndhoven",
"N.",
""
],
[
"Vandenbroucke",
"J.",
""
],
[
"Van Overloop",
"A.",
""
],
[
"van Santen",
"J.",
""
],
[
"Vehring",
"M.",
""
],
[
"Voge",
"M.",
""
],
[
"Walck",
"C.",
""
],
[
"Waldenmaier",
"T.",
""
],
[
"Wallraff",
"M.",
""
],
[
"Walter",
"M.",
""
],
[
"Weaver",
"Ch.",
""
],
[
"Wendt",
"C.",
""
],
[
"Westerhoff",
"S.",
""
],
[
"Whitehorn",
"N.",
""
],
[
"Wiebe",
"K.",
""
],
[
"Wiebusch",
"C. H.",
""
],
[
"Williams",
"D. R.",
""
],
[
"Wischnewski",
"R.",
""
],
[
"Wissing",
"H.",
""
],
[
"Wolf",
"M.",
""
],
[
"Wood",
"T. R.",
""
],
[
"Woschnagg",
"K.",
""
],
[
"Xu",
"C.",
""
],
[
"Xu",
"X. W.",
""
],
[
"Yodh",
"G.",
""
],
[
"Yoshida",
"S.",
""
],
[
"Zarzhitsky",
"P.",
""
]
] |
"12gMbg6k+p9QBPrWdVr000TrVNJMt5MYBldrVdBvBHQSWQrlW/wtWIyGWzU04iNucA70wleMKk8JsFoG8XW5DBmaCNRwQQ+7EDxmKPwuEO2BfRKAAIGora2Hqj3PpZyJ5CUVtxI2reu3wb9wZWRFg0eaFY53ErJkbkNMbKmOa6o="
|
2006.05916
|
Philipp del Hougne
|
Philipp del Hougne, Dmitry V. Savin, Olivier Legrand, Ulrich Kuhl
|
Implementing Non-Universal Features with a Random Matrix Theory
Approach: Application to Space-to-Configuration Multiplexing
|
5 pages including 4 figures + 7 pages Supplemental Material
|
Phys. Rev. E 102, 010201 (2020)
|
10.1103/PhysRevE.102.010201
| null |
physics.app-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We consider the efficiency of multiplexing spatially encoded information
across random configurations of a metasurface-programmable chaotic cavity in
the microwave domain. The distribution of the effective rank of the channel
matrix is studied to quantify the channel diversity and to assess a specific
system's performance. System-specific features such as unstirred field
components give rise to nontrivial inter-channel correlations and need to be
properly accounted for in modelling based on random matrix theory. To address
this challenge, we propose a two-step hybrid approach. Based on an ensemble of
experimentally measured scattering matrices for different random metasurface
configurations, we first learn a system-specific pair of coupling matrix and
unstirred contribution to the Hamiltonian, and then add an appropriately
weighted stirred contribution. We verify that our method is capable of
reproducing the experimentally found distribution of the effective rank with
good accuracy. The approach can also be applied to other wave phenomena in
complex media.
|
[
{
"version": "v1",
"created": "Wed, 10 Jun 2020 16:07:12 GMT"
}
] | 2020-08-05T00:00:00
|
[
[
"del Hougne",
"Philipp",
""
],
[
"Savin",
"Dmitry V.",
""
],
[
"Legrand",
"Olivier",
""
],
[
"Kuhl",
"Ulrich",
""
]
] |
"RHIIfrjqlCz40FK//eL3OQ1jYmWgL+sHEFNXZP16/1jgwArdQBZtWmaX+nWkkazniB31I3eMWsko+l0sSUh1SmGU4rETx1aWELgAKdkiIOnKex+A68xqqayNocoKJQ6orL7nrfq4ju/iFL9vam8FK83aHCx/VtNcTUPGPlYaDj4="
|
2204.12789
|
Nicolas Boull\'e
|
Nicolas Boull\'e, Seick Kim, Tianyi Shi, Alex Townsend
|
Learning Green's functions associated with time-dependent partial
differential equations
|
34 pages, 3 figures
|
Journal of Machine Learning Research 23 (2022) 1-34
| null | null |
math.NA cs.LG cs.NA math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Neural operators are a popular technique in scientific machine learning to
learn a mathematical model of the behavior of unknown physical systems from
data. Neural operators are especially useful to learn solution operators
associated with partial differential equations (PDEs) from pairs of forcing
functions and solutions when numerical solvers are not available or the
underlying physics is poorly understood. In this work, we attempt to provide
theoretical foundations to understand the amount of training data needed to
learn time-dependent PDEs. Given input-output pairs from a parabolic PDE in any
spatial dimension $n\geq 1$, we derive the first theoretically rigorous scheme
for learning the associated solution operator, which takes the form of a
convolution with a Green's function $G$. Until now, rigorously learning Green's
functions associated with time-dependent PDEs has been a major challenge in the
field of scientific machine learning because $G$ may not be square-integrable
when $n>1$, and time-dependent PDEs have transient dynamics. By combining the
hierarchical low-rank structure of $G$ together with randomized numerical
linear algebra, we construct an approximant to $G$ that achieves a relative
error of $\smash{\mathcal{O}(\Gamma_\epsilon^{-1/2}\epsilon)}$ in the
$L^1$-norm with high probability by using at most
$\smash{\mathcal{O}(\epsilon^{-\frac{n+2}{2}}\log(1/\epsilon))}$ input-output
training pairs, where $\Gamma_\epsilon$ is a measure of the quality of the
training dataset for learning $G$, and $\epsilon>0$ is sufficiently small.
|
[
{
"version": "v1",
"created": "Wed, 27 Apr 2022 09:23:39 GMT"
},
{
"version": "v2",
"created": "Thu, 4 Aug 2022 12:52:55 GMT"
}
] | 2022-08-05T00:00:00
|
[
[
"Boullé",
"Nicolas",
""
],
[
"Kim",
"Seick",
""
],
[
"Shi",
"Tianyi",
""
],
[
"Townsend",
"Alex",
""
]
] |
"zHMMbjjhkOJQnFO7fWHcaUV7LEWUP6OfTtdvfb9/dFlMoAEJawBtWE6feeVkx6bj4A25szGu2GittXmpQAspRMMUoUBTxlKWFLhgbv5iFEmB/B7AJIHpqB+J4RkYALwpTKu1vTyqh+7iBZ93YOdUe1/LnCh2m+NkeGrUn/IaGLw="
|
2402.15683
|
David Gamba
|
David Gamba, Yulin Yu, Yuan Yuan, Grant Schoenebeck, Daniel M. Romero
|
Exit Ripple Effects: Understanding the Disruption of Socialization
Networks Following Employee Departures
|
Published in proceedings of the ACM Web Conference 2024 (WWW '24),
May 13--17, 2024, Singapore, Singapore
| null |
10.1145/3589334.3645634
| null |
cs.SI cs.CY physics.soc-ph
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
Amidst growing uncertainty and frequent restructurings, the impacts of
employee exits are becoming one of the central concerns for organizations.
Using rich communication data from a large holding company, we examine the
effects of employee departures on socialization networks among the remaining
coworkers. Specifically, we investigate how network metrics change among people
who historically interacted with departing employees. We find evidence of
``breakdown" in communication among the remaining coworkers, who tend to become
less connected with fewer interactions after their coworkers' departure. This
effect appears to be moderated by both external factors, such as periods of
high organizational stress, and internal factors, such as the characteristics
of the departing employee. At the external level, periods of high stress
correspond to greater communication breakdown; at the internal level, however,
we find patterns suggesting individuals may end up better positioned in their
networks after a network neighbor's departure. Overall, our study provides
critical insights into managing workforce changes and preserving communication
dynamics in the face of employee exits.
|
[
{
"version": "v1",
"created": "Sat, 24 Feb 2024 02:02:53 GMT"
}
] | 2024-02-27T00:00:00
|
[
[
"Gamba",
"David",
""
],
[
"Yu",
"Yulin",
""
],
[
"Yuan",
"Yuan",
""
],
[
"Schoenebeck",
"Grant",
""
],
[
"Romero",
"Daniel M.",
""
]
] |
"2PBMTAimFn7wMJfZTWD9S0bnQ8NUs6GFRlcyaDd/891G8BhcWoRPHCaGOm+2ELSnkFzcajmMmI8oqkwpUsVIgGe2C8X4z1W2i7UhKNQ0NumjfwWBM7A2J5yZ7pJbTnmYh9sdW9CsB8zWxJdgJq9mko3LHi13YYfiWqvWz/ERBjE="
|
0806.2742
|
Yaroslav Kartashov
|
Fangwei Ye, Yaroslav V. Kartashov, Victor A. Vysloukh, Lluis Torner
|
Nonlinear switching of low-index defect modes in photonic lattices
|
13 pages, 4 figures, to appear in Physical Review A
|
Physical Review A 78, 013847 (2008)
|
10.1103/PhysRevA.78.013847
| null |
physics.optics nlin.PS
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We address nonlinear signal switching between two low-index defect channels
induced in periodic optical lattices. In contrast to conventional directional
couplers, where the guiding mechanism is total internal reflection or
refraction, in such Bragg-type coupler, the guidance is of a photonic-bandgap
origin. The coupling length in the low-index coupler is controlled by the
lattice parameters and by the channel spacing. In the nonlinear regime the
Bragg-type coupler behaves as an all-optical switch, exhibiting a remarkable
difference of switching power for focusing versus defocusing nonlinearity.
|
[
{
"version": "v1",
"created": "Tue, 17 Jun 2008 09:57:21 GMT"
}
] | 2009-11-13T00:00:00
|
[
[
"Ye",
"Fangwei",
""
],
[
"Kartashov",
"Yaroslav V.",
""
],
[
"Vysloukh",
"Victor A.",
""
],
[
"Torner",
"Lluis",
""
]
] |
"EPMAXoCKFWD6mQf/deA0+y/zRkWU1salUZMXdz1u4Vns2MtdYlRN2GafurwQw6nh0rn0InWMn0cMaF0hyFt13iGV4tATxFaGCDSIad9EsfHLfYWAfIQju4m04NoNACuorjL1r4qqpe7iNJNhJm8xB9/aVgt+1rNYQ4rchiJ7jj4="
|
1905.10351
|
Cornelius Fritz
|
Cornelius Fritz, Michael Lebacher, G\"oran Kauermann
|
Tempus Volat, Hora Fugit -- A Survey of Tie-Oriented Dynamic Network
Models in Discrete and Continuous Time
| null | null |
10.1111/stan.12198
| null |
cs.SI stat.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Given the growing number of available tools for modeling dynamic networks,
the choice of a suitable model becomes central. The goal of this survey is to
provide an overview of tie-oriented dynamic network models. The survey is
focused on introducing binary network models with their corresponding
assumptions, advantages, and shortfalls. The models are divided according to
generating processes, operating in discrete and continuous time. First, we
introduce the Temporal Exponential Random Graph Model (TERGM) and the Separable
TERGM (STERGM), both being time-discrete models. These models are then
contrasted with continuous process models, focusing on the Relational Event
Model (REM). We additionally show how the REM can handle time-clustered
observations, i.e., continuous time data observed at discrete time points.
Besides the discussion of theoretical properties and fitting procedures, we
specifically focus on the application of the models on two networks that
represent international arms transfers and email exchange. The data allow to
demonstrate the applicability and interpretation of the network models.
|
[
{
"version": "v1",
"created": "Thu, 23 May 2019 13:47:59 GMT"
},
{
"version": "v2",
"created": "Mon, 26 Aug 2019 08:26:50 GMT"
},
{
"version": "v3",
"created": "Wed, 28 Aug 2019 15:36:05 GMT"
}
] | 2022-01-05T00:00:00
|
[
[
"Fritz",
"Cornelius",
""
],
[
"Lebacher",
"Michael",
""
],
[
"Kauermann",
"Göran",
""
]
] |
"0NEsbgimGrqYONNfXWBZeQ5pZUg1Fzf3QhV7T7dv/93X8ApR+gZtHywEO23cUrRn0QzdIRmMmK0p6mwbcF1ZwGSWC9W43EiuGL9w6J8HJs2lfx2AM4LmOMyJ7dAaR1rYhfudm5KHg34aRp9rIDZWA53UTS130rPmRGLUzvCSF3M="
|
1604.02192
|
Chiara Tonini
|
Chiara Tonini, Simon J. Mutch, Darren J. Croton, J. Stuart B. Wyithe
|
The growth of disks and bulges during hierarchical galaxy formation. I:
fast evolution vs secular processes
|
Accepted on MNRAS; 24 pages, 11 figures
| null |
10.1093/mnras/stw956
| null |
astro-ph.GA astro-ph.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present a theoretical model for the evolution of mass, angular momentum
and size of galaxy disks and bulges, and we implement it into the semi-analytic
galaxy formation code SAGE. The model follows both secular and violent
evolutionary channels, including smooth accretion, disk instabilities, minor
and major mergers. We find that the combination of our recipe with hierarchical
clustering produces two distinct populations of bulges: merger-driven bulges,
akin to classical bulges and ellipticals, and instability-driven bulges, akin
to secular (or pseudo-)bulges. The model mostly reproduces the mass-size
relation of gaseous and stellar disks, the evolution of the mass-size relation
of ellipticals, the Faber-Jackson relation, and the magnitude-colour diagram of
classical and secular bulges. The model predicts only a small overlap of
merger-driven and instability-driven components in the same galaxy, and
predicts different bulge types as a function of galaxy mass and disk fraction.
Bulge type also affects the star formation rate and colour at a given
luminosity. The model predicts a population of merger-driven red ellipticals
that dominate both the low-mass and high-mass ends of the galaxy population,
and span all dynamical ages; merger-driven bulges in disk galaxies are
dynamically old and do not interfere with subsequent evolution of the
star-forming component. Instability-driven bulges dominate the population at
intermediate galaxy masses, especially thriving in massive disks. The model
green valley is exclusively populated by instability-driven bulge hosts.
Through the present implementation the mass accretion history is perceivable in
the galaxy structure, morphology and colours.
|
[
{
"version": "v1",
"created": "Thu, 7 Apr 2016 23:04:03 GMT"
},
{
"version": "v2",
"created": "Wed, 20 Apr 2016 04:13:27 GMT"
}
] | 2016-04-27T00:00:00
|
[
[
"Tonini",
"Chiara",
""
],
[
"Mutch",
"Simon J.",
""
],
[
"Croton",
"Darren J.",
""
],
[
"Wyithe",
"J. Stuart B.",
""
]
] |
"4MGA/JKmgP5YSPt/XXO0UQfNRsa0n4DfUMcziR1NtFDC0DJVR+BMGj6ckSewwrPj8I48t3WM//2ZKF+oUUCNBRq8hUBR10S2ELikadYmJvnZGA6Qf4D5LLiK6lwJIT6piPM3Gzycjf3Sxbd7pOfOI87a3a13VbI0yFdYRKAwr3g="
|
2208.04936
|
Weiyu Zhang
|
Becky Pham, Weiyu Zhang
|
Young women's cognition of commercial digital signage in shopping malls:
A situated action approach
|
A previous version of the paper was presented in June 2016 at the
66th Annual Conference of the International Communication Association,
Fukuoka, Japan
| null | null | null |
cs.HC
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Existing literature on digital signage is growing but has not always
emphasized the cognitive processes of the audience. This research aims to
address this gap by studying how young women in Singapore cognize commercial
digital signage in shopping malls and what cause them to do so. Using cognitive
ethnography and taking the situated action approach, our findings suggest a
comprehensive list of factors, both external and internal, that influence young
women's cognition of commercial digital signage in both positive and negative
ways. The research's practical implications are discussed.
|
[
{
"version": "v1",
"created": "Thu, 4 Aug 2022 05:44:18 GMT"
}
] | 2022-08-11T00:00:00
|
[
[
"Pham",
"Becky",
""
],
[
"Zhang",
"Weiyu",
""
]
] |
"E95cTknmhj6kAFR3LWIdSw3nU6lUM6tHdkUSclP/99zGkFM9UkJNmzKG+Wu1QKaryE7lBzWM204o72Ut4FxY2HUUC6S/wVCMAbAgqGY2VcixPRTRcqiOfymV/9IoJSqdh/t9+bCWy+1fRNdvB7G2GK34iC19UJMRSs8W3hveTjU="
|
chem-ph/9506004
|
Bo Soderberg
|
B. J\"onsson, M. Ullner (Phys. Chemistry 2, Lund U.), C. Peterson, O.
Sommelius and B. S\"oderberg (Theor. Phys. 2, Lund U.)
|
Titrating Polyelectrolytes - Variational Calculations and Monte Carlo
Simulations
|
22 pages, PostScript, 9 figures
| null | null |
LU TP 95-1
|
chem-ph cond-mat hep-lat physics.chem-ph
| null |
Variational methods are used to calculate structural and thermodynamical
properties of a titrating polyelectrolyte in a discrete representation. The
Coulomb interactions are emulated by harmonic repulsive forces, the force
constants being used as variational parameters to minimize the free energy. For
the titrating charges, a mean field approach is used.
The accuracy is tested against Monte Carlo data for up to 1000 monomers. For
an unscreened chain, excellent agreement is obtained for the end-to-end
distance and the apparent dissociation constant. With screening, the
thermodynamical properties are invariably well described, although the
structural agreement deteriorates.
A very simple rigid-rod approximation is also considered, giving surprisingly
good results for certain properties.
|
[
{
"version": "v1",
"created": "Thu, 15 Jun 1995 13:55:43 GMT"
}
] | 2008-02-03T00:00:00
|
[
[
"Jönsson",
"B.",
"",
"Phys. Chemistry 2, Lund U."
],
[
"Ullner",
"M.",
"",
"Phys. Chemistry 2, Lund U."
],
[
"Peterson",
"C.",
"",
"Theor. Phys. 2, Lund U."
],
[
"Sommelius",
"O.",
"",
"Theor. Phys. 2, Lund U."
],
[
"Söderberg",
"B.",
"",
"Theor. Phys. 2, Lund U."
]
] |
"9GkAL6znGBpdFBHZfeJU88V55VQFNpedDFc4abN++FzF8Es5aEN9HkyCuuXhwqfnwRn5w1kMHi2IPt6pOEm9AS0WoOcRzVamELMQePwmJtiBPx3gY4GpXIuNrFuIADoZ3ue3v8pilvjyBdd0IGSBS426gCZ1XZJ0ZarU3zoznvg="
|
1705.06181
|
Nikolai Dokuchaev
|
Nikolai Dokuchaev
|
Spectrum degeneracy for functions on branching lines and impact on
extrapolation and sampling
| null | null | null | null |
cs.IT math.IT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The paper studies functions defined on continuous branching lines connected
into a system. A notion of spectrum degeneracy for these functions is
introduced. This degeneracy is based on the properties of the Fourier
transforms for processes representing functions on the branches. It is shown
that processes with this spectrum degeneracy are everywhere dense in the set of
processes equivalent to functions on the branching lines. Some applications to
extrapolation and sampling are considered.
|
[
{
"version": "v1",
"created": "Wed, 17 May 2017 14:39:32 GMT"
},
{
"version": "v2",
"created": "Sat, 20 May 2017 01:43:54 GMT"
},
{
"version": "v3",
"created": "Sun, 21 Oct 2018 06:26:46 GMT"
}
] | 2018-10-23T00:00:00
|
[
[
"Dokuchaev",
"Nikolai",
""
]
] |
"aPkIbqjhEb7YWJJ5fXDw6QdbrIEUYrMnHFd07p1/dlxIcFtZ4whtWG6He6HRsqCjwA61u0esGAwIqn/lwAg8VMOSIMRxx1WsEryQKHZgdM2H/xzIYIDrLg6uppKdJY6Jyyc17eafj+/gBJ90ZK8EQ9/aHKp+UqNwVGLUH9OLVh4="
|
cond-mat/0208576
|
Henning Schomerus
|
R. G. Nazmitdinov, H.-S. Sim, H. Schomerus, I. Rotter
|
Shot noise and transport in small quantum cavities with large openings
|
4 pages, 3 figures
|
Phys. Rev. B 66, 241302(R) (2002)
|
10.1103/PhysRevB.66.241302
| null |
cond-mat.mes-hall
| null |
We present a dynamical analysis of the transport through small quantum
cavities with large openings. The systematic suppression of shot noise is used
to distinguish direct, deterministic from indirect, indeterministic transport
processes. The analysis is based on quantum mechanical calculations of $S$
matrices and their poles for quantum billiards with convex boundaries of
different shape and two open channels in each of the two attached leads. Direct
processes are supported when special states couple strongly to the leads, and
can result in deterministic transport as signified by a striking
system-specific suppression of shot noise.
|
[
{
"version": "v1",
"created": "Thu, 29 Aug 2002 11:31:38 GMT"
}
] | 2007-05-23T00:00:00
|
[
[
"Nazmitdinov",
"R. G.",
""
],
[
"Sim",
"H. -S.",
""
],
[
"Schomerus",
"H.",
""
],
[
"Rotter",
"I.",
""
]
] |
"UXEMXr6yi2rQWIJ79XB5swVbemXwz8OtVJc6/6lk7V3A1EpRVkZMWi6XO6Ehw6Xjwgj9w3eMXccpO18o+Un0TLG04PMXxhKsErw0Lb0gEVmPfzwAaIAIuyWIoaoIApqph/fl/9qrou/iENPvsv0cC82arKx3VfMwS8LeTnIKij4="
|
2110.07900
|
Yuichi Motoyama
|
Yuichi Motoyama, Ryo Tamura, Kazuyoshi Yoshimi, Kei Terayama, Tsuyoshi
Ueno, Koji Tsuda
|
Bayesian optimization package: PHYSBO
|
12 pages, 6 figures
|
Computer Physics Communications 278, 108405 (2022)
|
10.1016/j.cpc.2022.108405
| null |
physics.comp-ph cond-mat.mtrl-sci
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
PHYSBO (optimization tools for PHYSics based on Bayesian Optimization) is a
Python library for fast and scalable Bayesian optimization. It has been
developed mainly for application in the basic sciences such as physics and
materials science. Bayesian optimization is used to select an appropriate input
for experiments/simulations from candidate inputs listed in advance in order to
obtain better output values with the help of machine learning prediction.
PHYSBO can be used to find better solutions for both single and multi-objective
optimization problems. At each cycle in the Bayesian optimization, a single
proposal or multiple proposals can be obtained for the next
experiments/simulations. These proposals can be obtained interactively for use
in experiments. PHYSBO is available at
https://github.com/issp-center-dev/PHYSBO.
|
[
{
"version": "v1",
"created": "Fri, 15 Oct 2021 07:29:44 GMT"
},
{
"version": "v2",
"created": "Wed, 25 May 2022 00:55:33 GMT"
}
] | 2022-05-26T00:00:00
|
[
[
"Motoyama",
"Yuichi",
""
],
[
"Tamura",
"Ryo",
""
],
[
"Yoshimi",
"Kazuyoshi",
""
],
[
"Terayama",
"Kei",
""
],
[
"Ueno",
"Tsuyoshi",
""
],
[
"Tsuda",
"Koji",
""
]
] |
"gWgcbryiGdrRmRJ/XWNeYgV7BHYUr5vfTBN2aPls9RTVwBq9Ssd9WAaEW+EV4aPm8I64xRWMWu0qunmgWUg9kYkSqMHRz1i0EzrgafUmQNiBPhzIIgCqLA0qtZgIJJiIziuHvoq2hevmVL93dGdEQ5/7jQx/XpNkXErQDghSfrs="
|
2502.06694
|
ATLAS Collaboration
|
ATLAS Collaboration
|
Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 $fb^{-1}$ of $pp$ collisions at $\sqrt{s}\ = 13$ TeV with the ATLAS detector
|
Comments: 56 pages in total, author list starting page 39, 14 figures, 9 tables, submitted to JHEP. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HMBS-2024-68/
|
JHEP 07 (2025) 140
|
10.1007/JHEP07(2025)140
|
CERN-EP-2025-008
|
hep-ex
|
http://creativecommons.org/licenses/by/4.0/
|
This paper presents a search for massive, charged, long-lived particles with the ATLAS detector at the Large Hadron Collider using an integrated luminosity of 140 $fb^{-1}$ of proton-proton collisions at $\sqrt{s}=13$ TeV. These particles are expected to move significantly slower than the speed of light. In this paper, two signal regions provide complementary sensitivity. In one region, events are selected with at least one charged-particle track with high transverse momentum, large specific ionisation measured in the pixel detector, and time of flight to the hadronic calorimeter inconsistent with the speed of light. In the other region, events are selected with at least two tracks of opposite charge which both have a high transverse momentum and an anomalously large specific ionisation. The search is sensitive to particles with lifetimes greater than about 3 ns with masses ranging from 200 GeV to 3 TeV. The results are interpreted to set constraints on the supersymmetric pair production of long-lived R-hadrons, charginos and staus, with mass limits extending beyond those from previous searches in broad ranges of lifetime.
|
[
{
"version": "v1",
"created": "Mon, 10 Feb 2025 17:18:11 GMT"
}
] | 2025-07-16T00:00:00
|
[
[
"ATLAS Collaboration",
"",
""
]
] |
"1EtUXoqGmUp4ncLSZUJ0c2TjFFd8v5kZwKMqE+tVtWBk2EpVF9wN2myfeyV08rvm2L68Ql6NHk4JMlmm22R1BwuSbEQXbQO61bZorPEuMGCRXRegMsC4PziD/guLB5yJjjcyl44yDWv2xS95p0ZEg/3bzot7RLL0zELeDLg6bhI="
|
2210.05512
|
Amin Abolghasemi
|
Amin Abolghasemi, Arian Askari, Suzan Verberne
|
On the Interpolation of Contextualized Term-based Ranking with BM25 for
Query-by-Example Retrieval
|
Proceedings of the 2022 ACM SIGIR International Conference on the
Theory of Information Retrieval
| null |
10.1145/3539813.3545133
| null |
cs.IR
|
http://creativecommons.org/licenses/by/4.0/
|
Term-based ranking with pre-trained transformer-based language models has
recently gained attention as they bring the contextualization power of
transformer models into the highly efficient term-based retrieval. In this
work, we examine the generalizability of two of these deep contextualized
term-based models in the context of query-by-example (QBE) retrieval in which a
seed document acts as the query to find relevant documents. In this setting --
where queries are much longer than common keyword queries -- BERT inference at
query time is problematic as it involves quadratic complexity. We investigate
TILDE and TILDEv2, both of which leverage BERT tokenizer as their query
encoder. With this approach, there is no need for BERT inference at query time,
and also the query can be of any length. Our extensive evaluation on the four
QBE tasks of SciDocs benchmark shows that in a query-by-example retrieval
setting TILDE and TILDEv2 are still less effective than a cross-encoder BERT
ranker. However, we observe that BM25 could show a competitive ranking quality
compared to TILDE and TILDEv2 which is in contrast to the findings about the
relative performance of these three models on retrieval for short queries
reported in prior work. This result raises the question about the use of
contextualized term-based ranking models being beneficial in QBE setting. We
follow-up on our findings by studying the score interpolation between the
relevance score from TILDE (TILDEv2) and BM25. We conclude that these two
contextualized term-based ranking models capture different relevance signals
than BM25 and combining the different term-based rankers results in
statistically significant improvements in QBE retrieval. Our work sheds light
on the challenges of retrieval settings different from the common evaluation
benchmarks.
|
[
{
"version": "v1",
"created": "Tue, 11 Oct 2022 15:03:39 GMT"
}
] | 2022-10-12T00:00:00
|
[
[
"Abolghasemi",
"Amin",
""
],
[
"Askari",
"Arian",
""
],
[
"Verberne",
"Suzan",
""
]
] |
"xEgNfsKiEt7ADXpdHWGUKT4J58pVl+tXVmd2d/d/+VxM+EDVc1Nt3CwH8e+GQLzn9w/Ydzks2CuJv3ixQBhoiwEWCkBc2kG6F5WEaNInJg2tORWLMiGyroqD7Zm+Jz4A7Ku2MZY2jXyiQId/xl1EMp/MHI1/cAbcbJpUDvu+Rrw="
|
1211.2273
|
Ken Henisey
|
Ken B. Henisey, Omer M. Blaes, and P. Chris Fragile
|
Variability from Nonaxisymmetric Fluctuations Interacting with Standing
Shocks in Tilted Black Hole Accretion Disks
|
accepted in ApJ October 1, 2012
| null |
10.1088/0004-637X/760/1/1
| null |
astro-ph.HE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the spatial and temporal behavior of fluid in fully
three-dimensional, general relativistic, magnetohydrodynamical simulations of
both tilted and untilted black hole accretion flows. We uncover
characteristically greater variability in tilted simulations at frequencies
similar to those predicted by the formalism of trapped modes, but ultimately
conclude that its spatial structure is inconsistent with a modal
interpretation. We find instead that previously identified, transient,
over-dense clumps orbiting on roughly Keplerian trajectories appear generically
in our global simulations, independent of tilt. Associated with these
fluctuations are acoustic spiral waves interior to the orbits of the clumps. We
show that the two nonaxisymmetric standing shock structures that exist in the
inner regions of these tilted flows effectively amplify the variability caused
by these spiral waves to markedly higher levels than in untilted flows, which
lack standing shocks. Our identification of clumps, spirals, and spiral-shock
interactions in these fully general relativistic, magnetohydrodynamical
simulations suggests that these features may be important dynamical elements in
models which incorporate tilt as a way to explain the observed variability in
black hole accretion flows.
|
[
{
"version": "v1",
"created": "Sat, 10 Nov 2012 00:50:15 GMT"
},
{
"version": "v2",
"created": "Wed, 14 Nov 2012 21:35:13 GMT"
}
] | 2012-11-16T00:00:00
|
[
[
"Henisey",
"Ken B.",
""
],
[
"Blaes",
"Omer M.",
""
],
[
"Fragile",
"P. Chris",
""
]
] |
"4FkAXhqjiexR2HCTVXvwdWfDbkW0vxMNQNNmvX/s/hhsWH5BRyhI3i6eWyjwRbHjwI0kJ8Ms21kJJF/IUEChhXO0qEQR11e2HLzg7RYkMlnhHgQgacgpramJ4lyPpK4higU3nbq8j2/qxZt6JC5GI8+LDox3FpLkaYPaDPA9+zo="
|
2501.12858
|
L. V. Bogdanov
|
L. V. Bogdanov
|
Differential and other reductions of the self-dual conformal structure
equations
|
14 pages
| null | null | null |
nlin.SI math-ph math.DG math.MP
|
http://creativecommons.org/licenses/by/4.0/
|
The dispersionless integrable system we consider here was introduced to the
literature rather recently, it is connected with the general local form of
self-dual conformal structure (SDCS) for the signature (2,2). In integrability
framework this system possesses a rich structure of reductions, including
differential reductions. We will discuss several characteristic reductions for
this system, using the Lax pair, hierarchy structure and the dressing scheme.
We use reductions to construct solutions for the SDCS equations. One of our
goals is to present type B SDCS system and consider its relations with the SDCS
system.
|
[
{
"version": "v1",
"created": "Wed, 22 Jan 2025 13:11:55 GMT"
}
] | 2025-01-23T00:00:00
|
[
[
"Bogdanov",
"L. V.",
""
]
] |
"630YforHOUTYWFDTd1Pka217dvS8x5upVdejXT2/8FVKSAq9SktF3G6DMeWUwbTLyBvRykOufs2NZHyk+EA9VpGfodQXZ1a8HLUQaasmPm3ZfifgaoY5PTyrvtsdCI0wmCJ3nurqBdNCx5dtju4GQ0+a3C1+zPPwSHfUNzgThzo="
|
2401.10619
|
Otacilio Bezerra Leite Neto
|
Otacilio B. L. Neto, Michela Mulas, Francesco Corona
|
A model-based framework for controlling activated sludge plants
|
38 pages, 31 figures
| null | null | null |
eess.SY cs.SY math.OC
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
This work presents a general framework for the advanced control of a common
class of activated sludge plants (ASPs). Based on a dynamic model of the
process and plant sensors and actuators, we design and configure a highly
customisable Output Model-Predictive Controller (Output MPC) for the flexible
operation of ASPs as water resource recovery facilities. The controller
consists of a i) Moving-Horizon Estimator for determining the state of the
process, from plant measurements, and ii) a Model-Predictive Controller for
determining the optimal actions to attain high-level operational goals. The
Output MPC can be configured to satisfy the technological limits of the plant
equipment, as well as operational desiderata defined by plant personnel. We
consider exemplary problems and show that the framework is able to control ASPs
for tasks of practical relevance, ranging from wastewater treatment subject to
normative limits, to the production of an effluent with varying nitrogen
content, and energy recovery.
|
[
{
"version": "v1",
"created": "Fri, 19 Jan 2024 10:52:44 GMT"
}
] | 2024-01-22T00:00:00
|
[
[
"Neto",
"Otacilio B. L.",
""
],
[
"Mulas",
"Michela",
""
],
[
"Corona",
"Francesco",
""
]
] |
"VMscbLShuNLIPkI9fWMdcUX7RX1EI/P3jdVmW5Ls/BUdUEMZIxbNWGaXKyF906Jv4EyZzZnNGu5L8n2l60P9HIsWoFwQxUDokvGYaL8jNFWH+z7AYQugq8y4qBsdBJmZjpo1/KaaVXfiRf9tUEcTAc+J2g3vU6KkHGDWD/Ibdgo="
|
2305.02981
|
Sergej Chicherin
|
Sergej Chicherin, Karen Efremyan
|
Adversarially-Guided Portrait Matting
| null | null | null | null |
cs.CV
|
http://creativecommons.org/licenses/by-sa/4.0/
|
We present a method for generating alpha mattes using a limited data source.
We pretrain a novel transformerbased model (StyleMatte) on portrait datasets.
We utilize this model to provide image-mask pairs for the StyleGAN3-based
network (StyleMatteGAN). This network is trained unsupervisedly and generates
previously unseen imagemask training pairs that are fed back to StyleMatte. We
demonstrate that the performance of the matte pulling network improves during
this cycle and obtains top results on the human portraits and state-of-the-art
metrics on animals dataset. Furthermore, StyleMatteGAN provides
high-resolution, privacy-preserving portraits with alpha mattes, making it
suitable for various image composition tasks. Our code is available at
https://github.com/chroneus/stylematte
|
[
{
"version": "v1",
"created": "Thu, 4 May 2023 16:45:04 GMT"
},
{
"version": "v2",
"created": "Tue, 23 May 2023 11:50:01 GMT"
}
] | 2023-05-24T00:00:00
|
[
[
"Chicherin",
"Sergej",
""
],
[
"Efremyan",
"Karen",
""
]
] |
"wuuYfbiFRYj0A1K39Yb8M21pQ0XUKZknksd2Wbl5vRTh8CoJxAwt2AYOa+N2xYblwQexExCo3rmouFWpYXopQCEeIZRbylSmEJWA6P889e2DvxDCVhWyNN+H/ds7BR+Zzr93yfAwG+9CRZf+JqWGC4/5nKx/NIODTIJQGyhaDq8="
|
2409.05235
|
Jianyuan Ni
|
Raunak Sarbajna, Karima Elgarroussi, Hoang D Vo, Jianyuan Ni,
Christoph F. Eick
|
COVID19-CBABM: A City-Based Agent Based Disease Spread Modeling
Framework
| null | null | null | null |
cs.CG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In response to the ongoing pandemic and health emergency of COVID-19, several
models have been used to understand the dynamics of virus spread. Some employ
mathematical models like the compartmental SEIHRD approach and others rely on
agent-based modeling (ABM). In this paper, a new city-based agent-based
modeling approach called COVID19-CBABM is introduced. It considers not only the
transmission mechanism simulated by the SEHIRD compartments but also models
people movements and their interactions with their surroundings, particularly
their interactions at different types of Points of Interest (POI), such as
supermarkets. Through the development of knowledge extraction procedures for
Safegraph data, our approach simulates realistic conditions based on spatial
patterns and infection conditions considering locations where people spend
their time in a given city. Our model was implemented in Python using the
Mesa-Geo framework. COVID19-CBABM is portable and can be easily extended by
adding more complicated scenarios. Therefore, it is a useful tool to assist the
government and health authorities in evaluating strategic decisions and actions
efficiently against this epidemic, using the unique mobility patterns of each
city.
|
[
{
"version": "v1",
"created": "Sun, 8 Sep 2024 22:36:50 GMT"
}
] | 2024-09-10T00:00:00
|
[
[
"Sarbajna",
"Raunak",
""
],
[
"Elgarroussi",
"Karima",
""
],
[
"Vo",
"Hoang D",
""
],
[
"Ni",
"Jianyuan",
""
],
[
"Eick",
"Christoph F.",
""
]
] |
"2MAkbpihkHpwM/+93Wk9ay715AVVN6/fYtViJ39v9dXP4BhoksxdGz6kc2CV06Lrig7ViFGu2Ks5avlFQnRYnACehWUwiXOuEvdc6/PmF53nDxyhNwGKJzqnqVgKABybyI4VE5SaxPuS9Z9oBDXGN69cHSX3Q6PEDM5UzXM6/nA="
|
1509.05903
|
Serge Tabachnikov
|
Serge Tabachnikov
|
Skewers
| null | null | null | null |
math.MG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The skewer of a pair of skew lines in space is their common perpendicular. To
configuration theorems of plane projective geometry involving points and lines
(such as Pappus or Desargues) there correspond configuration theorems in space:
points and lines in the plane are replaced by lines is space, the incidence
between a line and a point translates as the intersection of two lines at right
angle, and the operations of connecting two points by a line or by intersecting
two lines at a point translate as taking the skewer of two lines. These
configuration theorems hold in elliptic, Euclidean, and hyperbolic geometries.
This correspondence principle extends to plane configuration theorems involving
polarity. For example, the theorem that the three altitudes of a triangle are
concurrent corresponds to the Petersen-Morley theorem that the common normals
of the opposite sides of a space right-angled hexagon have a common normal. We
define analogs of plane circles (they are 2-parameter families of lines in
space) and extend the correspondence principle to plane theorems involving
circles. We also discuss the skewer versions of the Sylvester problem: given a
finite collection of pairwise skew lines such that the skewer of any pair
intersects at least one other line at right angle, do all the line have to
share a skewer? The answer is positive in the elliptic and Euclidean
geometries, but negative in the hyperbolic one.
|
[
{
"version": "v1",
"created": "Sat, 19 Sep 2015 15:28:15 GMT"
}
] | 2015-09-22T00:00:00
|
[
[
"Tabachnikov",
"Serge",
""
]
] |
"5WMYb6qrOdD40dff/ULkM3Rp4le0Z5IBQlNj3X2v71BBTEoNSoNN3m6WuqNQg7TjkJxVg1OEXE0KqFntQwh8EPm0A4QTxR2MELwUyZc2UtnBexTATogqK6yp4l5NBZyIoYd/LdZTpW+CRRf7Ji9WYUfaXi1/14Nwbd5WdhALKjo="
|
2504.01969
|
Ana Isabel Castillo Pereda
|
Ana I. C. Pereda
|
Systemic Risk and Default Cascades in Global Equity Markets: Extending
the Gai-Kapadia Framework with Stochastic Simulations and Network Analysis
|
19 pages, 9 figures, 6 table
| null | null | null |
q-fin.RM
|
http://creativecommons.org/licenses/by/4.0/
|
This study pioneers the application of the Gai-Kapadia framework, originally
developed for interbank contagion, to global equity markets. It offers a novel
approach to assess systemic risk and default cascades. Using a 20-asset network
(13 Brazilian and 7 developed market assets) from 2015 to 2025, we construct
exposure-based networks from price co-movements, applying thresholds theta =
0.3 and theta = 0.5 to capture significant interconnections. Cascade dynamics
are evaluated through Monte Carlo simulations (n = 1000) with shocks ranging
from 10 to 50 percent, complemented by deterministic propagation analysis.
Results show that high clustering among Brazilian assets (Ci approx 1.0) leads
to localized contagion, with an average of 2.0 failed assets per simulation. In
contrast, developed markets with lower connectivity (Ci approx 0.2 to 0.4) show
resilience, with zero failures beyond Brazil in all scenarios. Network
visualizations highlight structural vulnerabilities: deterministic cascades
reach up to 20 assets at theta = 0.3, but only 3 to 4 at theta = 0.5. Risk
measures such as VaR and CVaR at 95 percent confidence confirm higher tail
risks in emerging markets. This adaptation of the Gai-Kapadia model provides a
robust framework for systemic risk assessment. The findings suggest that
regulators should target high-clustering nodes in emerging markets, while
portfolio managers may benefit from the resilience of developed markets to
enhance diversification.
|
[
{
"version": "v1",
"created": "Thu, 20 Mar 2025 15:20:20 GMT"
},
{
"version": "v2",
"created": "Fri, 4 Apr 2025 08:32:34 GMT"
}
] | 2025-04-07T00:00:00
|
[
[
"Pereda",
"Ana I. C.",
""
]
] |
"eNEcbhimmFpomNd/XWg1eQZpR8QUs7fJTlYibbd//l1M0Ah8YghZGC6VCyTd8bBj0Az9ITmMGO4oKzl5QEwpAvOUqdQ6zlWuFH8gaPZ2NtmlWw0gNwOiJUqIqEEKCwKahbOdf46sleyyxL95JX/WI63XGQl3XjNmSivGn/iaHi8="
|
2402.03982
|
Yusu Hong
|
Yusu Hong and Junhong Lin
|
On Convergence of Adam for Stochastic Optimization under Relaxed
Assumptions
|
NeurIPS 2024
| null | null | null |
math.OC cs.LG stat.ML
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The Adaptive Momentum Estimation (Adam) algorithm is highly effective in
training various deep learning tasks. Despite this, there's limited theoretical
understanding for Adam, especially when focusing on its vanilla form in
non-convex smooth scenarios with potential unbounded gradients and affine
variance noise. In this paper, we study vanilla Adam under these challenging
conditions. We introduce a comprehensive noise model which governs affine
variance noise, bounded noise and sub-Gaussian noise. We show that Adam can
find a stationary point with a $\mathcal{O}(\text{poly}(\log T)/\sqrt{T})$ rate
in high probability under this general noise model where $T$ denotes total
number iterations, matching the lower rate of stochastic first-order algorithms
up to logarithm factors. More importantly, we reveal that Adam is free of
tuning step-sizes with any problem-parameters, yielding a better adaptation
property than the Stochastic Gradient Descent under the same conditions. We
also provide a probabilistic convergence result for Adam under a generalized
smooth condition which allows unbounded smoothness parameters and has been
illustrated empirically to more accurately capture the smooth property of many
practical objective functions.
|
[
{
"version": "v1",
"created": "Tue, 6 Feb 2024 13:19:26 GMT"
},
{
"version": "v2",
"created": "Sat, 22 Feb 2025 03:07:15 GMT"
}
] | 2025-02-25T00:00:00
|
[
[
"Hong",
"Yusu",
""
],
[
"Lin",
"Junhong",
""
]
] |
"23MMfgikktxxlVI1dRH8+2RZQAfUm7M5wHdXabd+9ZTAwgmZbEktWC6Pe+3m3aCvxQi5g3WsGgkpkgm5eWp5QGUaMdR6wlScFJ2AaP7mNMmgbz1INgH5/C6L7lqYRZ+JSreH2bCMj3naYb99Y2VUK9/dmLj/TKNhbUHUn7q6N7w="
|
2505.21857
|
Mijung Park
|
Mijung Park
|
Revisiting Bayesian Model Averaging in the Era of Foundation Models
| null | null | null | null |
cs.LG stat.ML
|
http://creativecommons.org/licenses/by-nc-nd/4.0/
|
We revisit the classical, full-fledged Bayesian model averaging (BMA) paradigm to ensemble pre-trained and/or lightly-finetuned foundation models to enhance the classification performance on image and text data. To make BMA tractable under foundation models, we introduce trainable linear classifiers that take frozen features from the pre-trained foundation models as inputs. The model posteriors over the linear classifiers tell us which linear heads and frozen features are better suited for a given dataset, resulting in a principled model ensembling method. Furthermore, we propose a computationally cheaper, optimizable model averaging scheme (OMA). In OMA, we directly optimize the model ensemble weights, just like those weights based on model posterior distributions in BMA, by reducing the amount of surprise (expected entropy of the predictions) we get from predictions of ensembled models. With the rapid development of foundation models, these approaches will enable the incorporation of future, possibly significantly better foundation models to enhance the performance of challenging classification tasks.
|
[
{
"version": "v1",
"created": "Wed, 28 May 2025 01:03:28 GMT"
}
] | 2025-05-29T00:00:00
|
[
[
"Park",
"Mijung",
""
]
] |
"zOAMboimiF5MBXsf/WKdY0T5ZVwUmaMXRlZyab1/9VzA0EFZYBNtWgQHe+dG0aTv4U65FV2MmmuJsl+xUSkpgAkaoMBTw1CsFbFA6P0mckn7Px3IdoG6LIuX6xgaJR6JzKN3+bSmjWuzQZ/3ZUUUGZ/KnLx/fpLEaAKUD/CzXj0="
|
2105.12899
|
Xijun Li
|
Xijun Li, Weilin Luo, Mingxuan Yuan, Jun Wang, Jiawen Lu, Jie Wang,
Jinhu Lu and Jia Zeng
|
Learning to Optimize Industry-Scale Dynamic Pickup and Delivery Problems
| null | null | null | null |
cs.AI
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
The Dynamic Pickup and Delivery Problem (DPDP) is aimed at dynamically
scheduling vehicles among multiple sites in order to minimize the cost when
delivery orders are not known a priori. Although DPDP plays an important role
in modern logistics and supply chain management, state-of-the-art DPDP
algorithms are still limited on their solution quality and efficiency. In
practice, they fail to provide a scalable solution as the numbers of vehicles
and sites become large. In this paper, we propose a data-driven approach,
Spatial-Temporal Aided Double Deep Graph Network (ST-DDGN), to solve
industry-scale DPDP. In our method, the delivery demands are first forecast
using spatial-temporal prediction method, which guides the neural network to
perceive spatial-temporal distribution of delivery demand when dispatching
vehicles. Besides, the relationships of individuals such as vehicles are
modelled by establishing a graph-based value function. ST-DDGN incorporates
attention-based graph embedding with Double DQN (DDQN). As such, it can make
the inference across vehicles more efficiently compared with traditional
methods. Our method is entirely data driven and thus adaptive, i.e., the
relational representation of adjacent vehicles can be learned and corrected by
ST-DDGN from data periodically. We have conducted extensive experiments over
real-world data to evaluate our solution. The results show that ST-DDGN reduces
11.27% number of the used vehicles and decreases 13.12% total transportation
cost on average over the strong baselines, including the heuristic algorithm
deployed in our UAT (User Acceptance Test) environment and a variety of vanilla
DRL methods. We are due to fully deploy our solution into our online logistics
system and it is estimated that millions of USD logistics cost can be saved per
year.
|
[
{
"version": "v1",
"created": "Thu, 27 May 2021 01:16:00 GMT"
}
] | 2021-05-28T00:00:00
|
[
[
"Li",
"Xijun",
""
],
[
"Luo",
"Weilin",
""
],
[
"Yuan",
"Mingxuan",
""
],
[
"Wang",
"Jun",
""
],
[
"Lu",
"Jiawen",
""
],
[
"Wang",
"Jie",
""
],
[
"Lu",
"Jinhu",
""
],
[
"Zeng",
"Jia",
""
]
] |
"UPZsbrDgFvqAOYOPTWIvuS55VT4UN6H3UkUTav9v61zu5AydTMZNGGwEKej7w6QrxwrsJR2M2m1562m5a2F5R6UWCcx4y0KEBPxiaNcjEe2lHx2AckGuNF6IuBkaBb6ZrKuWGXqmzC6WQZdhBed2I83QDil3aLMnfGKWhtIzFmk="
|
2109.09029
|
Zheng Dong
|
Zheng Dong, Shixiang Zhu, Yao Xie, Jorge Mateu, Francisco J.
Rodr\'iguez-Cort\'es
|
Non-stationary spatio-temporal point process modeling for
high-resolution COVID-19 data
| null | null | null | null |
stat.AP
|
http://creativecommons.org/licenses/by/4.0/
|
Most COVID-19 studies commonly report figures of the overall infection at a
state- or county-level. This aggregation tends to miss out on fine details of
virus propagation. In this paper, we analyze a high-resolution COVID-19 dataset
in Cali, Colombia, that records the precise time and location of every
confirmed case. We develop a non-stationary spatio-temporal point process
equipped with a neural network-based kernel to capture the heterogeneous
correlations among COVID-19 cases. The kernel is carefully crafted to enhance
expressiveness while maintaining model interpretability. We also incorporate
some exogenous influences imposed by city landmarks. Our approach outperforms
the state-of-the-art in forecasting new COVID-19 cases with the capability to
offer vital insights into the spatio-temporal interaction between individuals
concerning the disease spread in a metropolis.
|
[
{
"version": "v1",
"created": "Sat, 18 Sep 2021 23:39:11 GMT"
},
{
"version": "v2",
"created": "Wed, 29 Sep 2021 19:41:40 GMT"
},
{
"version": "v3",
"created": "Thu, 9 Mar 2023 05:10:09 GMT"
}
] | 2023-03-10T00:00:00
|
[
[
"Dong",
"Zheng",
""
],
[
"Zhu",
"Shixiang",
""
],
[
"Xie",
"Yao",
""
],
[
"Mateu",
"Jorge",
""
],
[
"Rodríguez-Cortés",
"Francisco J.",
""
]
] |
"WMQ0bjikkWLoE9evfWG9aw71ZAV1Oy6LSsViTv9/9VjkYBh9QsRVGg6ee2SV0zBr2w79y0yO2C9pYXkHQmBpkBYUjfaxB1O7Ev9E6tdnE7klbxyBN0HGJEqZrdoeBbyK6K4UE9SOCe+VxJ9oIFWkB99AkCV34aNqTGp2jXO6+z8="
|
2407.13524
|
Junyoung Park
|
Ilhoon Yoon, Hyeongjun Kwon, Jin Kim, Junyoung Park, Hyunsung Jang,
Kwanghoon Sohn
|
Enhancing Source-Free Domain Adaptive Object Detection with
Low-confidence Pseudo Label Distillation
|
ECCV 2024
| null | null | null |
cs.CV cs.AI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Source-Free domain adaptive Object Detection (SFOD) is a promising strategy
for deploying trained detectors to new, unlabeled domains without accessing
source data, addressing significant concerns around data privacy and
efficiency. Most SFOD methods leverage a Mean-Teacher (MT) self-training
paradigm relying heavily on High-confidence Pseudo Labels (HPL). However, these
HPL often overlook small instances that undergo significant appearance changes
with domain shifts. Additionally, HPL ignore instances with low confidence due
to the scarcity of training samples, resulting in biased adaptation toward
familiar instances from the source domain. To address this limitation, we
introduce the Low-confidence Pseudo Label Distillation (LPLD) loss within the
Mean-Teacher based SFOD framework. This novel approach is designed to leverage
the proposals from Region Proposal Network (RPN), which potentially encompasses
hard-to-detect objects in unfamiliar domains. Initially, we extract HPL using a
standard pseudo-labeling technique and mine a set of Low-confidence Pseudo
Labels (LPL) from proposals generated by RPN, leaving those that do not overlap
significantly with HPL. These LPL are further refined by leveraging
class-relation information and reducing the effect of inherent noise for the
LPLD loss calculation. Furthermore, we use feature distance to adaptively
weight the LPLD loss to focus on LPL containing a larger foreground area. Our
method outperforms previous SFOD methods on four cross-domain object detection
benchmarks. Extensive experiments demonstrate that our LPLD loss leads to
effective adaptation by reducing false negatives and facilitating the use of
domain-invariant knowledge from the source model. Code is available at
https://github.com/junia3/LPLD.
|
[
{
"version": "v1",
"created": "Thu, 18 Jul 2024 13:58:42 GMT"
}
] | 2024-07-19T00:00:00
|
[
[
"Yoon",
"Ilhoon",
""
],
[
"Kwon",
"Hyeongjun",
""
],
[
"Kim",
"Jin",
""
],
[
"Park",
"Junyoung",
""
],
[
"Jang",
"Hyunsung",
""
],
[
"Sohn",
"Kwanghoon",
""
]
] |
"2OnNLgyikihhDcMV9WJ8M3QxA9xcH7EXUkdmbT1//xzW4AtZ5BttWAwHW9MH2KKnxU+lGzSsmqspuhmlQcApSBMaKfCRzlaoFrmAeJ7nkEmRnxyKNgW6PCcT7bmepZ6IyqMnubQin+6nQJf5Z+WFm8323Kh/BRNBSYtUjjnyBi8="
|
1705.04934
|
Ran Liu
|
Ran Liu, Chau Yuen, Tri-Nhut Do, Ye Jiang, Xiang Liu, U-Xuan Tan
|
Indoor Positioning using Similarity-based Sequence and Dead Reckoning
without Training
|
18th IEEE International Workshop on Signal Processing Advances in
Wireless Communications (SPAWC 2017)
| null | null | null |
cs.NI
|
http://creativecommons.org/publicdomain/zero/1.0/
|
For the traditional fingerprinting-based positioning approach, it is
essential to collect measurements at known locations as reference fingerprints
during a training phase, which can be time-consuming and labor-intensive. This
paper proposes a novel approach to track a user in an indoor environment by
integrating similarity-based sequence and dead reckoning. In particular, we
represent the fingerprinting map as location sequences based on distance
ranking of the APs (access points) whose positions are known. The fingerprint
used for online positioning is represented by a ranked sequence of APs based on
the measured Received Signal Strength (RSS), which is refereed to as RSS
sequence in this paper. Embedded into a particle filter, we achieve the
tracking of a mobile user by fusing the sequence-based similarity and dead
reckoning. Extensive experiments are conducted to evaluate the proposed
approach.
|
[
{
"version": "v1",
"created": "Sun, 14 May 2017 09:02:45 GMT"
}
] | 2017-05-16T00:00:00
|
[
[
"Liu",
"Ran",
""
],
[
"Yuen",
"Chau",
""
],
[
"Do",
"Tri-Nhut",
""
],
[
"Jiang",
"Ye",
""
],
[
"Liu",
"Xiang",
""
],
[
"Tan",
"U-Xuan",
""
]
] |
"zPLMLoihl154McJwdWP380L7UX0VY2rhwGcC4hVT/xzi5ArZ6NRtWAaIO/XWw6SvhQb9RR2Pco8ruUisYspZmHiGIMVzzOSYhvmmKZzmFC3vfzXAWqCirk6zpJASJr6IjJ9VPbYH3GeUZpNiJ39Eid3jDih/d1J7REZWbjdKZns="
|
2208.07213
|
Hengyu Zhou
|
Hengyu Zhou
|
A blow-up method to prescribed mean curvature graphs with fixed
boundaries
|
Abstract and Introduction are rewritten. Add a subsection in Section
5 to illustrate the Nc-f property can not be removed. Add Section 7 to give
an application in the PMC Plateau problem
| null | null | null |
math.DG math.AP
|
http://creativecommons.org/licenses/by/4.0/
|
In this paper, we apply a blow-up method of Schoen and Yau in \cite{SY81} to
study a large class of prescribed mean curvature (PMC) Dirichlet problems in
$n(n\geq 2)$-dimensional Riemannian manifolds. In this process we establish
curvature estimates for almost minimizing PMC hypersurfaces, using an approach
of Schauder estimates from Simon \cite{Sim76}. We define an Nc-f domain, where
$f$ is a given function generating from the PMC equation. Combining this
condition with a sufficiently mean convex assumption the blow-up method yields
corresponding solutions to these PMC Dirichlet problems. Such Nc-f assumption
is almost optimal by an example. An application of our result into the PMC
Plateau problem is also presented.
|
[
{
"version": "v1",
"created": "Mon, 15 Aug 2022 14:18:15 GMT"
},
{
"version": "v2",
"created": "Sun, 15 Oct 2023 02:23:58 GMT"
}
] | 2023-10-17T00:00:00
|
[
[
"Zhou",
"Hengyu",
""
]
] |
"/WkYbgOrEIDYMt/bfVGFSWV/QdKUF7NrBFcxTZZ99x1FSX0FS4Ld2n6Hm+0Rw7DLgA8Vf1OsWG0d4jipUEJdENkcocQRw1S4GD34SKYiJM2PrDzIL4HibIUrjsuLgq65KLA3ftCmg2/Cwd3pQ2fWY0/flCh2XUPwbHeWdrZC/jo="
|
1411.1744
|
Arnab Kundu
|
Elena Caceres, Arnab Kundu, Juan F. Pedraza and Di-Lun Yang
|
Weak Field Collapse in AdS: Introducing a Charge Density
|
1+48 pages, multiple figures, published in JHEP
|
JHEP 1506 (2015) 111
|
10.1007/JHEP06(2015)111
|
UTTG-22-14, TCC-024-14, CCTP-2014-24, CCQCN-2014-49
|
hep-th cond-mat.str-el gr-qc nucl-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the effect of a non-vanishing chemical potential on the
thermalization time of a strongly coupled large $N_c$ gauge theory in
$(2+1)$-dimensions, using a specific bottom-up gravity model in asymptotically
AdS space. We first construct a perturbative solution to the gravity-equations,
which dynamically interpolates between two AdS black hole backgrounds with
different temperatures and chemical potentials, in a perturbative expansion of
a bulk neutral scalar field. In the dual field theory, this corresponds to a
quench dynamics by a marginal operator, where the corresponding coupling serves
as the small parameter in which the perturbation is carried out. The evolution
of non-local observables, such as the entanglement entropy, suggests that
thermalization time decreases with increasing chemical potential. We also
comment on the validity of our perturbative analysis.
|
[
{
"version": "v1",
"created": "Thu, 6 Nov 2014 20:54:27 GMT"
},
{
"version": "v2",
"created": "Mon, 29 Jun 2015 15:52:39 GMT"
}
] | 2018-09-25T00:00:00
|
[
[
"Caceres",
"Elena",
""
],
[
"Kundu",
"Arnab",
""
],
[
"Pedraza",
"Juan F.",
""
],
[
"Yang",
"Di-Lun",
""
]
] |
"uGoYThKFmIrUUEjTdUDQsUXJ9BSUl7FtVtJie71tNVRkWUtZC+x5Xi6VW+Dw4rnz0o65Y2MsWEkpJp+6WGkUAnO8pe0WfxG2EKgY7HEkBanJXi0IOUhprp0roFosKuyI5iU1vq+wFs/2oYZ5r2ZEg8/b/o9+VMbwTYvcHfkTCrg="
|
2204.08144
|
Javad Taghizadeh Firouzjaee
|
Sara Azizi, Sareh Eslamzadeh, Javad T. Firouzjaee and Kourosh Nozari
|
Hawking Temperature for 4D-Einstein-Gauss-Bonnet Black Holes from
uncertainty principle
|
19 pages, 15 figures
| null | null | null |
gr-qc hep-th
|
http://creativecommons.org/licenses/by/4.0/
|
Inspired by string theory, Heisenberg's uncertainty principle can be
generalized to include the photon-electron gravitational interaction, which
leads to the Generalized Uncertainty Principle (GUP). Although GUP considers
gravitational uncertainty at the minimum fundamental length scale in physics,
it does not consider the effects of spacetime curvature on quantum mechanical
uncertainty relations. The Extended Uncertainty Principle (EUP) is a
generalization of Heisenberg's Uncertainty Principle that, unlike the GUP,
applies to large length scales. GEUP is also a linear combination of EUP and
GUP that creates minimal uncertainty on large length scales. The
Einstein-Gauss-Bonnet theory (EGB) can be considered as one of the most
promising candidates for modified gravity. In this paper, by using GUP, EUP,
and GEUP, we intend to obtain the Hawking temperature of a four-dimensional EGB
black hole in the asymptotically flat and (Anti)-de Sitter spacetime. We show
that coupling constant, cosmological constant, mass, and radius significantly
affect Hawking temperature and decrease or increase Hawking temperature
depending on the chosen horizons.
|
[
{
"version": "v1",
"created": "Mon, 18 Apr 2022 03:17:38 GMT"
}
] | 2022-04-19T00:00:00
|
[
[
"Azizi",
"Sara",
""
],
[
"Eslamzadeh",
"Sareh",
""
],
[
"Firouzjaee",
"Javad T.",
""
],
[
"Nozari",
"Kourosh",
""
]
] |
"smuMf67hqVLSUTpX1VGQc2/LZlX0V5tsVNN/Pb+u7lxkCU6NSmxp3m6Em6Cw8aHykJ7xA+csaksJrZskWEudA2O+ot1WJlO0GDwoeNEkEPTpNjwAr4gpKi2pJhrvI5yI3i+nvIIRjK3mkTdxJW5UC5XL6il3nYFgSVvclGx+ujg="
|
2504.06941
|
Olivia Yao
|
Jiayu Chen, Jing Jin, and Olivia X.M. Yao
|
Proofs of two conjectures on congruences of overcubic partition triples
| null | null | null | null |
math.NT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Let $\overline{bt}(n)$ denote the number of overcubic partition triples of
$n$. Nayaka, Dharmendra and Kumar proved some congruences modulo 8, 16 and 32
for $\overline{bt}(n)$. Recently, Saikia and Sarma established some congruences
modulo 64 for $\overline{bt}(n)$ by using both elementary techniques and the
theory of modular forms. In their paper, they also posed two conjectures on
infinite families of congruences modulo 64 and 128 for $\overline{bt}(n)$. In
this paper, we confirm the two conjectures.
|
[
{
"version": "v1",
"created": "Wed, 9 Apr 2025 14:49:16 GMT"
}
] | 2025-04-10T00:00:00
|
[
[
"Chen",
"Jiayu",
""
],
[
"Jin",
"Jing",
""
],
[
"Yao",
"Olivia X. M.",
""
]
] |
"IvsI/4+hKxBzXdO15VrU8TA5+kCkt7tLQHculXX/LVSKdFrdWiJtnsSVKYdzgb3tgR/1g1O0GN2EqVyyYFs80Bm/pYUKz1G2RPoMyDIkKj2KeEcAQpAobxmjouIdRrq55SO3vfdapnpwRbP5Fy8WE0x6mCl+R8ORDGLcc5sjPjw="
|
astro-ph/9509137
|
J. Shields
|
Joseph C. Shields, Robert C. Kennicutt (Steward Observatory)
|
Consequences of Dust in Metal-Rich HII Regions
|
21 pages (AASTeX), plus 9 figures (uuencoded, gzipped, tar), to
appear in ApJ, December 1995
|
Astrophys.J. 454 (1995) 807
|
10.1086/176533
| null |
astro-ph
| null |
Dust and associated depletion of heavy elements from the gas phase can modify
the thermal properties of HII regions from the dust-free case, with significant
consequences for the emergent optical spectrum. We present the results of
theoretical calculations illustrating the effects of grains on the spectra of
giant, extragalactic HII regions, with emphasis on high metallicity systems
(i.e. solar and higher Z). Dust provides a simple explanation for the
observational absence of pure Balmer-line spectra that are expected on
theoretical grounds for dust-free, chemically enriched nebulae. Grains may also
play a role in enhancements of forbidden-line emission observed in HII regions
in the enriched nuclei of normal galaxies. In most cases, depletion introduces
the strongest perturbations to the optical spectrum. Selective absorption of
the ionizing continuum as well as heating by grain photoelectrons are important
in some instances, however, and grain heating can be particularly important for
enhancing emission in high-ionization lines. Allowing for depletion, the
presence of dust is unlikely to introduce large errors in global metallicity
indicators, although uncertainties in depletion factors coupled with the
sensitivity of infrared cooling to electron density will make accurate
calibrations difficult at high Z. The present calculations establish further
that previous relative abundance analyses that fail to take into account dust
effects in a self-consistent way (grain heating as well as depletion) may
overestimate temperature gradients in high-Z nebulae, resulting in errors in
relative abundances for different elements.
|
[
{
"version": "v1",
"created": "Wed, 27 Sep 1995 00:26:51 GMT"
}
] | 2009-10-28T00:00:00
|
[
[
"Shields",
"Joseph C.",
"",
"Steward Observatory"
],
[
"Kennicutt",
"Robert C.",
"",
"Steward Observatory"
]
] |
"4OgQXY6gnwxXQWnT/Xp0uQXD1MA0p5HHXttiS5jMtDjO2dpVomgJ2iyFOzj0tq3rcA8wN9cMe9+JBh+p0WCoAFu8qMQV3VO2Ej9UbdKmEFnRNRe4dCC+LamMo9qvIS6Bigs9hyzsju7ihd9yuM4Ewc35Ho1/VpBQSAPQBrl6Byg="
|
1106.0817
|
J\"urgen Potthoff
|
Vadim Kostrykin, J\"urgen Potthoff, Robert Schrader
|
Finite propagation speed for solutions of the wave equation on metric
graphs
|
24 pages, 1 figure
| null | null | null |
math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We provide a class of self-adjoint Laplace operators on metric graphs with
the property that the solutions of the associated wave equation satisfy the
finite propagation speed property. The proof uses energy methods, which are
adaptions of corresponding methods for smooth manifolds.
|
[
{
"version": "v1",
"created": "Sat, 4 Jun 2011 12:19:09 GMT"
}
] | 2011-06-07T00:00:00
|
[
[
"Kostrykin",
"Vadim",
""
],
[
"Potthoff",
"Jürgen",
""
],
[
"Schrader",
"Robert",
""
]
] |
"XXkMLqqwCPDY3FB7/UPp629rZXaUz9spRNdzbbV/813MwBlRagltWA6De62Bo7zDoAz3w3OMXEUMs3ghbFgwTvGeoMRz41aUGD0gbJ5mN/3Zzx+ALYRgrK2JoZqKgo65pbfnv9yjgu/CQJd5YmdEA1+blC1+nfPwSEXWfiJfmjo="
|
1502.01586
|
Brendan Crill
|
Planck Collaboration: R. Adam, P. A. R. Ade, N. Aghanim, M. Arnaud, M.
Ashdown, J. Aumont, C. Baccigalupi, A. J. Banday, R. B. Barreiro, N. Bartolo,
E. Battaner, K. Benabed, A. Benoit, A. Benoit-Levy, J.-P. Bernard, M.
Bersanelli, B. Bertincourt, P. Bielewicz, J. J. Bock, L. Bonavera, J. R.
Bond, J. Borrill, F. R. Bouchet, F. Boulanger, M. Bucher, C. Burigana, E.
Calabrese, J.-F. Cardoso, A. Catalano, A. Challinor, A. Chamballu, R.-R.
Chary, H. C. Chiang, P. R. Christensen, D. L. Clements, S. Colombi, L. P. L.
Colombo, C. Combet, F. Couchot, A. Coulais, B. P. Crill, A. Curto, F.
Cuttaia, L. Danese, R. D. Davies, R. J. Davis, P. de Bernardis, A. de Rosa,
G. de Zotti, J. Delabrouille, J.-M. Delouis, F.-X. Desert, J. M. Diego, H.
Dole, S. Donzelli, O. Dore, M. Douspis, A. Ducout, X. Dupac, G. Efstathiou,
F. Elsner, T. A. Ensslin, H. K. Eriksen, E. Falgarone, J. Fergusson, F.
Finelli, O. Forni, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frejsel, S.
Galeotta, S. Galli, K. Ganga, T. Ghosh, M. Giard, Y. Giraud-Heraud, E.
Gjerlow, J. Gonzalez-Nuevo, K. M. Gorski, S. Gratton, A. Gruppuso, J. E.
Gudmundsson, F. K. Hansen, D. Hanson, D. L. Harrison, S. Henrot-Versille, D.
Herranz, S. R. Hildebrandt, E. Hivon, M. Hobson, W. A. Holmes, A. Hornstrup,
W. Hovest, K. M. Huffenberger, G. Hurier, A. H. Jaffe, T. R. Jaffe, W. C.
Jones, M. Juvela, E. Keihanen, R. Keskitalo, T. S. Kisner, R. Kneissl, J.
Knoche, M. Kunz, H. Kurki-Suonio, G. Lagache, J.-M. Lamarre, A. Lasenby, M.
Lattanzi, C. R. Lawrence, M. Le Jeune, J. P. Leahy, E. Lellouch, R. Leonardi,
J. Lesgourgues, F. Levrier, M. Liguori, P. B. Lilje, M. Linden-Vornle, M.
Lopez-Caniego, P. M. Lubin, J. F. Macias-Perez, G. Maggio, D. Maino, N.
Mandolesi, A. Mangilli, M. Maris, P. G. Martin, E. Martinez-Gonzalez, S.
Masi, S. Matarrese, P. McGehee, A. Melchiorri, L. Mendes, A. Mennella, M.
Migliaccio, S. Mitra, M.-A. Miville-Deschenes, A. Moneti, L. Montier, R.
Moreno, G. Morgante, D. Mortlock, A. Moss, S. Mottet, D. Munshi, J. A.
Murphy, P. Naselsky, F. Nati, P. Natoli, C. B. Netterfield, H. U.
Norgaard-Nielsen, F. Noviello, D. Novikov, I. Novikov, C. A. Oxborrow, F.
Paci, L. Pagano, F. Pajot, D. Paoletti, F. Pasian, G. Patanchon, T. J.
Pearson, O. Perdereau, L. Perotto, F. Perrotta, V. Pettorino, F. Piacentini,
M. Piat, E. Pierpaoli, D. Pietrobon, S. Plaszczynski, E. Pointecouteau, G.
Polenta, G. W. Pratt, G. Prezeau, S. Prunet, J.-L. Puget, J. P. Rachen, M.
Reinecke, M. Remazeilles, C. Renault, A. Renzi, I. Ristorcelli, G. Rocha, C.
Rosset, M. Rossetti, G. Roudier, M. Rowan-Robinson, B. Rusholme, M. Sandri,
D. Santos, A. Sauve, M. Savelainen, G. Savini, D. Scott, M. D. Seiffert, E.
P. S. Shellard, L. D. Spencer, V. Stolyarov, R. Stompor, R. Sudiwala, D.
Sutton, A.-S. Suur-Uski, J.-F. Sygnet, J. A. Tauber, L. Terenzi, L.
Toffolatti, M. Tomasi, M. Tristram, M. Tucci, J. Tuovinen, L. Valenziano, J.
Valiviita, B. Van Tent, L. Vibert, P. Vielva, F. Villa, L. A. Wade, B. D.
Wandelt, R. Watson, I. K. Wehus, D. Yvon, A. Zacchei, A. Zonca
|
Planck 2015 results. VII. HFI TOI and beam processing
| null |
A&A 594, A7 (2016)
|
10.1051/0004-6361/201525844
| null |
astro-ph.IM
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The Planck High Frequency Instrument (HFI) has observed the full sky at six
frequencies (100, 143, 217, 353, 545, and 857 GHz) in intensity and at four
frequencies in linear polarization (100, 143, 217, and 353 GHz). In order to
obtain sky maps, the time-ordered information (TOI) containing the detector and
pointing samples must be processed and the angular response must be assessed.
The full mission TOI is included in the Planck 2015 release. This paper
describes the HFI TOI and beam processing for the 2015 release. HFI calibration
and map-making are described in a companion paper. The main pipeline has been
modified since the last release (2013 nominal mission in intensity only), by
including a correction for the non-linearity of the warm readout and by
improving the model of the bolometer time response. The beam processing is an
essential tool that derives the angular response used in all the Planck science
papers and we report an improvement in the effective beam window function
uncertainty of more than a factor 10 relative to the 2013 release. Noise
correlations introduced by pipeline filtering function are assessed using
dedicated simulations. Angular cross-power spectra using datasets that are
decorrelated in time are immune to the main systematic effects.
|
[
{
"version": "v1",
"created": "Thu, 5 Feb 2015 15:08:30 GMT"
},
{
"version": "v2",
"created": "Fri, 17 Jul 2015 16:52:17 GMT"
}
] | 2016-09-21T00:00:00
|
[
[
"Planck Collaboration",
"",
""
],
[
"Adam",
"R.",
""
],
[
"Ade",
"P. A. R.",
""
],
[
"Aghanim",
"N.",
""
],
[
"Arnaud",
"M.",
""
],
[
"Ashdown",
"M.",
""
],
[
"Aumont",
"J.",
""
],
[
"Baccigalupi",
"C.",
""
],
[
"Banday",
"A. J.",
""
],
[
"Barreiro",
"R. B.",
""
],
[
"Bartolo",
"N.",
""
],
[
"Battaner",
"E.",
""
],
[
"Benabed",
"K.",
""
],
[
"Benoit",
"A.",
""
],
[
"Benoit-Levy",
"A.",
""
],
[
"Bernard",
"J. -P.",
""
],
[
"Bersanelli",
"M.",
""
],
[
"Bertincourt",
"B.",
""
],
[
"Bielewicz",
"P.",
""
],
[
"Bock",
"J. J.",
""
],
[
"Bonavera",
"L.",
""
],
[
"Bond",
"J. R.",
""
],
[
"Borrill",
"J.",
""
],
[
"Bouchet",
"F. R.",
""
],
[
"Boulanger",
"F.",
""
],
[
"Bucher",
"M.",
""
],
[
"Burigana",
"C.",
""
],
[
"Calabrese",
"E.",
""
],
[
"Cardoso",
"J. -F.",
""
],
[
"Catalano",
"A.",
""
],
[
"Challinor",
"A.",
""
],
[
"Chamballu",
"A.",
""
],
[
"Chary",
"R. -R.",
""
],
[
"Chiang",
"H. C.",
""
],
[
"Christensen",
"P. R.",
""
],
[
"Clements",
"D. L.",
""
],
[
"Colombi",
"S.",
""
],
[
"Colombo",
"L. P. L.",
""
],
[
"Combet",
"C.",
""
],
[
"Couchot",
"F.",
""
],
[
"Coulais",
"A.",
""
],
[
"Crill",
"B. P.",
""
],
[
"Curto",
"A.",
""
],
[
"Cuttaia",
"F.",
""
],
[
"Danese",
"L.",
""
],
[
"Davies",
"R. D.",
""
],
[
"Davis",
"R. J.",
""
],
[
"de Bernardis",
"P.",
""
],
[
"de Rosa",
"A.",
""
],
[
"de Zotti",
"G.",
""
],
[
"Delabrouille",
"J.",
""
],
[
"Delouis",
"J. -M.",
""
],
[
"Desert",
"F. -X.",
""
],
[
"Diego",
"J. M.",
""
],
[
"Dole",
"H.",
""
],
[
"Donzelli",
"S.",
""
],
[
"Dore",
"O.",
""
],
[
"Douspis",
"M.",
""
],
[
"Ducout",
"A.",
""
],
[
"Dupac",
"X.",
""
],
[
"Efstathiou",
"G.",
""
],
[
"Elsner",
"F.",
""
],
[
"Ensslin",
"T. A.",
""
],
[
"Eriksen",
"H. K.",
""
],
[
"Falgarone",
"E.",
""
],
[
"Fergusson",
"J.",
""
],
[
"Finelli",
"F.",
""
],
[
"Forni",
"O.",
""
],
[
"Frailis",
"M.",
""
],
[
"Fraisse",
"A. A.",
""
],
[
"Franceschi",
"E.",
""
],
[
"Frejsel",
"A.",
""
],
[
"Galeotta",
"S.",
""
],
[
"Galli",
"S.",
""
],
[
"Ganga",
"K.",
""
],
[
"Ghosh",
"T.",
""
],
[
"Giard",
"M.",
""
],
[
"Giraud-Heraud",
"Y.",
""
],
[
"Gjerlow",
"E.",
""
],
[
"Gonzalez-Nuevo",
"J.",
""
],
[
"Gorski",
"K. M.",
""
],
[
"Gratton",
"S.",
""
],
[
"Gruppuso",
"A.",
""
],
[
"Gudmundsson",
"J. E.",
""
],
[
"Hansen",
"F. K.",
""
],
[
"Hanson",
"D.",
""
],
[
"Harrison",
"D. L.",
""
],
[
"Henrot-Versille",
"S.",
""
],
[
"Herranz",
"D.",
""
],
[
"Hildebrandt",
"S. R.",
""
],
[
"Hivon",
"E.",
""
],
[
"Hobson",
"M.",
""
],
[
"Holmes",
"W. A.",
""
],
[
"Hornstrup",
"A.",
""
],
[
"Hovest",
"W.",
""
],
[
"Huffenberger",
"K. M.",
""
],
[
"Hurier",
"G.",
""
],
[
"Jaffe",
"A. H.",
""
],
[
"Jaffe",
"T. R.",
""
],
[
"Jones",
"W. C.",
""
],
[
"Juvela",
"M.",
""
],
[
"Keihanen",
"E.",
""
],
[
"Keskitalo",
"R.",
""
],
[
"Kisner",
"T. S.",
""
],
[
"Kneissl",
"R.",
""
],
[
"Knoche",
"J.",
""
],
[
"Kunz",
"M.",
""
],
[
"Kurki-Suonio",
"H.",
""
],
[
"Lagache",
"G.",
""
],
[
"Lamarre",
"J. -M.",
""
],
[
"Lasenby",
"A.",
""
],
[
"Lattanzi",
"M.",
""
],
[
"Lawrence",
"C. R.",
""
],
[
"Jeune",
"M. Le",
""
],
[
"Leahy",
"J. P.",
""
],
[
"Lellouch",
"E.",
""
],
[
"Leonardi",
"R.",
""
],
[
"Lesgourgues",
"J.",
""
],
[
"Levrier",
"F.",
""
],
[
"Liguori",
"M.",
""
],
[
"Lilje",
"P. B.",
""
],
[
"Linden-Vornle",
"M.",
""
],
[
"Lopez-Caniego",
"M.",
""
],
[
"Lubin",
"P. M.",
""
],
[
"Macias-Perez",
"J. F.",
""
],
[
"Maggio",
"G.",
""
],
[
"Maino",
"D.",
""
],
[
"Mandolesi",
"N.",
""
],
[
"Mangilli",
"A.",
""
],
[
"Maris",
"M.",
""
],
[
"Martin",
"P. G.",
""
],
[
"Martinez-Gonzalez",
"E.",
""
],
[
"Masi",
"S.",
""
],
[
"Matarrese",
"S.",
""
],
[
"McGehee",
"P.",
""
],
[
"Melchiorri",
"A.",
""
],
[
"Mendes",
"L.",
""
],
[
"Mennella",
"A.",
""
],
[
"Migliaccio",
"M.",
""
],
[
"Mitra",
"S.",
""
],
[
"Miville-Deschenes",
"M. -A.",
""
],
[
"Moneti",
"A.",
""
],
[
"Montier",
"L.",
""
],
[
"Moreno",
"R.",
""
],
[
"Morgante",
"G.",
""
],
[
"Mortlock",
"D.",
""
],
[
"Moss",
"A.",
""
],
[
"Mottet",
"S.",
""
],
[
"Munshi",
"D.",
""
],
[
"Murphy",
"J. A.",
""
],
[
"Naselsky",
"P.",
""
],
[
"Nati",
"F.",
""
],
[
"Natoli",
"P.",
""
],
[
"Netterfield",
"C. B.",
""
],
[
"Norgaard-Nielsen",
"H. U.",
""
],
[
"Noviello",
"F.",
""
],
[
"Novikov",
"D.",
""
],
[
"Novikov",
"I.",
""
],
[
"Oxborrow",
"C. A.",
""
],
[
"Paci",
"F.",
""
],
[
"Pagano",
"L.",
""
],
[
"Pajot",
"F.",
""
],
[
"Paoletti",
"D.",
""
],
[
"Pasian",
"F.",
""
],
[
"Patanchon",
"G.",
""
],
[
"Pearson",
"T. J.",
""
],
[
"Perdereau",
"O.",
""
],
[
"Perotto",
"L.",
""
],
[
"Perrotta",
"F.",
""
],
[
"Pettorino",
"V.",
""
],
[
"Piacentini",
"F.",
""
],
[
"Piat",
"M.",
""
],
[
"Pierpaoli",
"E.",
""
],
[
"Pietrobon",
"D.",
""
],
[
"Plaszczynski",
"S.",
""
],
[
"Pointecouteau",
"E.",
""
],
[
"Polenta",
"G.",
""
],
[
"Pratt",
"G. W.",
""
],
[
"Prezeau",
"G.",
""
],
[
"Prunet",
"S.",
""
],
[
"Puget",
"J. -L.",
""
],
[
"Rachen",
"J. P.",
""
],
[
"Reinecke",
"M.",
""
],
[
"Remazeilles",
"M.",
""
],
[
"Renault",
"C.",
""
],
[
"Renzi",
"A.",
""
],
[
"Ristorcelli",
"I.",
""
],
[
"Rocha",
"G.",
""
],
[
"Rosset",
"C.",
""
],
[
"Rossetti",
"M.",
""
],
[
"Roudier",
"G.",
""
],
[
"Rowan-Robinson",
"M.",
""
],
[
"Rusholme",
"B.",
""
],
[
"Sandri",
"M.",
""
],
[
"Santos",
"D.",
""
],
[
"Sauve",
"A.",
""
],
[
"Savelainen",
"M.",
""
],
[
"Savini",
"G.",
""
],
[
"Scott",
"D.",
""
],
[
"Seiffert",
"M. D.",
""
],
[
"Shellard",
"E. P. S.",
""
],
[
"Spencer",
"L. D.",
""
],
[
"Stolyarov",
"V.",
""
],
[
"Stompor",
"R.",
""
],
[
"Sudiwala",
"R.",
""
],
[
"Sutton",
"D.",
""
],
[
"Suur-Uski",
"A. -S.",
""
],
[
"Sygnet",
"J. -F.",
""
],
[
"Tauber",
"J. A.",
""
],
[
"Terenzi",
"L.",
""
],
[
"Toffolatti",
"L.",
""
],
[
"Tomasi",
"M.",
""
],
[
"Tristram",
"M.",
""
],
[
"Tucci",
"M.",
""
],
[
"Tuovinen",
"J.",
""
],
[
"Valenziano",
"L.",
""
],
[
"Valiviita",
"J.",
""
],
[
"Van Tent",
"B.",
""
],
[
"Vibert",
"L.",
""
],
[
"Vielva",
"P.",
""
],
[
"Villa",
"F.",
""
],
[
"Wade",
"L. A.",
""
],
[
"Wandelt",
"B. D.",
""
],
[
"Watson",
"R.",
""
],
[
"Wehus",
"I. K.",
""
],
[
"Yvon",
"D.",
""
],
[
"Zacchei",
"A.",
""
],
[
"Zonca",
"A.",
""
]
] |
"xFgAXg6oGB5JEFrTfQN2cQWLTsCsv7MZWlcqz1nstljiWQr9wgBd2i6Ge3T485Fn0g67J32sW0MJvl9J40ApGluOCNBSxkO+ETlkAdomEHzFfRyo5YSqLqmG4JjNpb6oiKc9l2q5j+7iBJ9xqGZFhd/aHqx/UpE0TEvSHCjJbjo="
|
1510.03786
|
Carlos Gabriel Pacheco Dr.
|
Carlos G. Pacheco
|
Green kernel for a random Schr\"odinger operator
| null | null |
10.1142/S0219199715500820
| null |
math.SP math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We find explicitly the Green kernel of a random Schr\"odinger operator with
Brownian white noise. To do this, we first handle the random operator by
defining it weakly using the inner product of a Hilbert space. Then, using
classic Sturm-Liouville theory, we can build the Green kernel with linearly
independent solutions of a homogeneous problem. As a corollary we have that the
random operator has a discrete spectra.
|
[
{
"version": "v1",
"created": "Tue, 13 Oct 2015 17:21:44 GMT"
}
] | 2015-10-14T00:00:00
|
[
[
"Pacheco",
"Carlos G.",
""
]
] |
"aGuNbjrxq+7YVJt7/3L8+wV/ZESSPoMdVJda7Z1P91wmKEtZJE5tWg6feu9U8KTr4AvzW2mcfFWPu3sgUAk5wCO2oMDT41OcFDgwbv0igNmL/ByAKIApLE07cIgdoKyozKN3rN6vq+7oUJ/vq+YVi9XSlKh2SOM0T1LUrXIa07w="
|
1611.05567
|
Masaaki Furusawa
|
Masaaki Furusawa, Kazuki Morimoto
|
Refined global Gross-Prasad conjecture on special Bessel periods and
Boecherer's conjecture
|
33 pages; revised extensively following the suggestions by the
referee. Accepted for publication in J. Eur. Math. Soc. (JEMS)
|
J. Eur. Math. Soc. 23 (2021), no. 4, pp. 1295--1331
|
10.4171/JEMS/1034
| null |
math.NT math.RT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we pursue the refined global Gross-Prasad conjecture for Bessel
periods formulated by Yifeng Liu in the case of special Bessel periods for
$\mathrm{SO}\left(2n+1\right)\times\mathrm{SO}\left(2\right)$. Recall that a
Bessel period for $\mathrm{SO}\left(2n+1\right)\times\mathrm{SO}\left(2\right)$
is called special when the representation of $\mathrm{SO}\left(2\right)$ is
trivial. Let $\pi$ be an irreducible cuspidal tempered automorphic
representation of a special orthogonal group of an odd dimensional quadratic
space over a totally real number field $F$ whose local component $\pi_v$ at any
archimedean place $v$ of $F$ is a discrete series representation. Let $E$ be a
quadratic extension of $F$ and suppose that the special Bessel period
corresponding to $E$ does not vanish identically on $\pi$. Then we prove the
Ichino-Ikeda type explicit formula conjectured by Liu for the central value
$L\left(1/2,\pi\right)L\left(1/2,\pi\times\chi_E\right)$, where $\chi_E$
denotes the quadratic character corresponding to $E$. Our result yields a proof
of Boecherer's conecture on holomorphic Siegel cusp forms of degree two which
are Hecke eigenforms.
|
[
{
"version": "v1",
"created": "Thu, 17 Nov 2016 05:25:05 GMT"
},
{
"version": "v2",
"created": "Thu, 24 Nov 2016 04:23:47 GMT"
},
{
"version": "v3",
"created": "Tue, 25 Jul 2017 11:55:42 GMT"
},
{
"version": "v4",
"created": "Mon, 27 Nov 2017 11:58:54 GMT"
},
{
"version": "v5",
"created": "Sun, 27 Jan 2019 09:18:06 GMT"
}
] | 2024-10-21T00:00:00
|
[
[
"Furusawa",
"Masaaki",
""
],
[
"Morimoto",
"Kazuki",
""
]
] |
"b3mcfguhOIDZWMDz9VK0tWEp5jGct5PA0VNr3VnftVziLFvcSy7BmOaPfcXx4b3pyQnnS3GiHdussV6lwEof0Jm0oMQWjleYKN6Uab4iPF3cuIXgZpApvwyp4scNBKy5sqO2n/YapUvyZrNniOYEQlbaGCt2TcOSSWKcNjs6jrw="
|
2507.21257
|
David Maria Schmidt
|
David Maria Schmidt, Raoul Schubert, Philipp Cimiano
|
CompoST: A Benchmark for Analyzing the Ability of LLMs To Compositionally Interpret Questions in a QALD Setting
|
Research Track, 24th International Semantic Web Conference (ISWC 2025), November 2-6, 2025, Nara, Japan
| null | null | null |
cs.AI cs.CL
|
http://creativecommons.org/licenses/by/4.0/
|
Language interpretation is a compositional process, in which the meaning of more complex linguistic structures is inferred from the meaning of their parts. Large language models possess remarkable language interpretation capabilities and have been successfully applied to interpret questions by mapping them to SPARQL queries. An open question is how systematic this interpretation process is. Toward this question, in this paper, we propose a benchmark for investigating to what extent the abilities of LLMs to interpret questions are actually compositional. For this, we generate three datasets of varying difficulty based on graph patterns in DBpedia, relying on Lemon lexica for verbalization. Our datasets are created in a very controlled fashion in order to test the ability of LLMs to interpret structurally complex questions, given that they have seen the atomic building blocks. This allows us to evaluate to what degree LLMs are able to interpret complex questions for which they "understand" the atomic parts. We conduct experiments with models of different sizes using both various prompt and few-shot optimization techniques as well as fine-tuning. Our results show that performance in terms of macro $F_1$ degrades from $0.45$ over $0.26$ down to $0.09$ with increasing deviation from the samples optimized on. Even when all necessary information was provided to the model in the input, the $F_1$ scores do not exceed $0.57$ for the dataset of lowest complexity. We thus conclude that LLMs struggle to systematically and compositionally interpret questions and map them into SPARQL queries.
|
[
{
"version": "v1",
"created": "Mon, 28 Jul 2025 18:20:41 GMT"
}
] | 2025-07-30T00:00:00
|
[
[
"Schmidt",
"David Maria",
""
],
[
"Schubert",
"Raoul",
""
],
[
"Cimiano",
"Philipp",
""
]
] |
"nnFNfgiiCs5ADetb/VqYCTyrBsJQn6Nf1md2Rjd++9xOYEDdYUptXgwVE+FCUZzj5Q69fzGsGDuJO306eSg5jaGXK8dc2wGaFbUA7HgmVGnvOR/ocqyYSsqL6piNBZ4B6Is3vRTqj3uyxZ/3JG1EiY2QnKl/WKbVdIPUCLETKq0="
|
1901.00806
|
Selman Akbulut
|
Selman Akbulut and Eylem Zeliha Yildiz
|
Knot concordances in $S^1\times S^2$ and exotic smooth $4$-manifolds
|
12 pages, 17 figures. Remark 1 added
|
Journal of G\"okova Geometry Topology, vol 13 (2019)
| null | null |
math.GT math.SG
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
It is known that there is a unique concordance class in the free homotopy
class of $S^1\times pt \subset S^1 \times S^2$. The constructive proof of this
fact is given by the second author. It turns out that all the concordances in
this construction are invertible. The knots $K\subset S^{1}\times S^{2}$ with
hyperbolic complements and trivial symmetry group are special interest here,
because they can be used to generate absolutely exotic compact 4-manifolds by
the recipe given by Akbulut and Ruberman. Here we built absolutely exotic
manifold pairs by this construction, and show that this construction keeps the
Stein property of the $4$-manifolds we start out with. By using this we
establish the existence of an absolutely exotic contractible Stein manifold
pair, and absolutely exotic homotopy $S^1\times B^3$ Stein manifold pair.
|
[
{
"version": "v1",
"created": "Thu, 3 Jan 2019 16:24:33 GMT"
},
{
"version": "v2",
"created": "Fri, 12 Apr 2019 06:46:03 GMT"
},
{
"version": "v3",
"created": "Tue, 24 Sep 2019 14:09:29 GMT"
}
] | 2020-12-29T00:00:00
|
[
[
"Akbulut",
"Selman",
""
],
[
"Yildiz",
"Eylem Zeliha",
""
]
] |
"3eGI/ganLwB4FMPbbVvAM31tZ0b8l7OZlVtzHX1/91VcLEtZSwJMXC6XEoVXQbSG4D117zOgTk+UvV7NWFhdFJO1oaQXxVSEELEcbJYiFn3feV7AYog4PYyKqt8NBJyZuaMn/dZzp08ipxf75u5SC8ealKF+3aHQCXDELrVbqio="
|
hep-th/9904155
|
Mitsuko Abe
|
Mitsuko Abe and Masamichi Sato
|
Puzzles on the Duality between Heterotic and Type IIA Strings
|
Latex, 12 pages, Replacement: solution to puzzles was added, i.e.,
double K3 fibrations
|
Phys.Lett. B467 (1999) 218-224
|
10.1016/S0370-2693(99)01171-5
|
TIT/HEP-411
|
hep-th
| null |
We discuss the possibility of the extension of the duality between the webs
of heterotic string and the type IIA string to Calabi-Yau 3-folds with another
K3 fiber by comparing the dual polyhedron of Calabi-Yau 3-folds given by
Candelas, Perevalov and Rajesh.
|
[
{
"version": "v1",
"created": "Fri, 23 Apr 1999 03:10:19 GMT"
},
{
"version": "v2",
"created": "Tue, 27 Apr 1999 08:56:51 GMT"
},
{
"version": "v3",
"created": "Wed, 25 Aug 1999 07:46:38 GMT"
}
] | 2009-10-31T00:00:00
|
[
[
"Abe",
"Mitsuko",
""
],
[
"Sato",
"Masamichi",
""
]
] |
"4nEc/4KGiYh5VdJfbVv0cXRZJnbUVzNJ1JNqfT3vZlBGRFmNGwJtlm6Xr5AwQbenoB/xh3eoHscIavxASGg9EvicowYcARW0EPgUbNomHHnbWCfAKok6Nayprts9IY8IhCU9v9bxgP+yhvd9h61UCkWKxCt6npNgTbbQO6k+K3w="
|
1002.4748
|
Neil Drummond
|
N. D. Drummond, P. Lopez Rios, C. J. Pickard and R. J. Needs
|
First-Principles Study of a Positron Immersed in an Electron Gas
| null |
Phys. Rev. B 82, 035107 (2010)
|
10.1103/PhysRevB.82.035107
| null |
cond-mat.mes-hall cond-mat.quant-gas
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Calculations of the relaxation energy, contact pair-correlation function, and
annihilating-pair momentum density for a single positron immersed in a
homogeneous electron gas are presented. We achieve an accurate description of
the electron-positron correlation effects by working in the reference frame in
which the positron is stationary and using a mean-field approach based on
single-component density functional theory. Our positron relaxation energies
and annihilation rates are similar to those from the best existing many-body
calculations. Our annihilating-pair momentum densities are significantly
different from previous data, and include a "tail" beyond the Fermi edge.
|
[
{
"version": "v1",
"created": "Thu, 25 Feb 2010 16:04:24 GMT"
}
] | 2011-01-20T00:00:00
|
[
[
"Drummond",
"N. D.",
""
],
[
"Rios",
"P. Lopez",
""
],
[
"Pickard",
"C. J.",
""
],
[
"Needs",
"R. J.",
""
]
] |
"sGjBfj60OFp8CBDbnWpWtbXrUESYl8OUVEca+Tl+OUXU6Er5WMRpWma8e6TwVqfj0hi9Q3usXkWJuFpqGEEtwTm2oOSWZ1GOFDtofrWmQFiBbRwAYODhPCGK5koNgTiojj9ln+thH/72hJZuqmQGA4963ip+DZVQSZrWzDoTSvw="
|
1710.04014
|
Tomoaki Nogawa
|
Tomoaki Nogawa
|
Renormalization-group theory of the abnormal singularities at the
critical-order transition in bond percolation on pointed hierarchical graphs
|
17 pages, 3 figures
| null |
10.1088/1751-8121/aae79e
| null |
cond-mat.stat-mech cond-mat.dis-nn
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We study the singularity of the order parameter at the transition between a
critical phase and an ordered phase of bond percolation on pointed hierarchical
graphs. In pointed hierarchical graphs, the renormalization group (RG) equation
explicitly depends on the bare parameter, which causes the phase transitions
that correspond to the bifurcation of the RG fixed point. We derive the
relation between the type of this bifurcation and the type of the singularity
of the order parameter. In the case of a saddle node bifurcation, the
singularity of the order parameter is power-law or essential one depending on
the fundamental local structure of the graph. In the case of pitchfork and
transcritical bifurcations, the singularity is essential and power-law ones,
respectively. These becomes power-law and discontinuous ones, respectively, in
the absence of the first-order perturbation to the largest eigenvalue of the
combining matrix, which gives the growth rate of the cluster size. We also show
that the first-order perturbation vanishes if the relevant RG parameter is
unique and the backbone of the pointed hierarchical graph is simply connected
via nesting subunits.
|
[
{
"version": "v1",
"created": "Wed, 11 Oct 2017 11:35:43 GMT"
},
{
"version": "v2",
"created": "Tue, 9 Oct 2018 02:15:21 GMT"
},
{
"version": "v3",
"created": "Thu, 20 Dec 2018 09:30:07 GMT"
}
] | 2018-12-21T00:00:00
|
[
[
"Nogawa",
"Tomoaki",
""
]
] |
"eHkYXAqkGY54WFX7fWF5uyd5pBaVN6NNRBc4bb1/9VxCUBl8SyRPWm6XO+XAU7Qz0Bz1w3uMmU0ELX2JUEgdApm0BtQaVVS2GLUAaLcwFsjI240AG8G4bIGJqsoJIA+6pyM3b97rh++Gxf95ImZnAt/e3At3TLPyTcDWhjIbjjo="
|
1707.00839
|
Fernando Adri\'an Fern\'andez Tojo
|
Alberto Cabada and F. Adri\'an F. Tojo
|
On Linear Differential Equations and Systems with Reflection
| null | null | null | null |
math.CA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we develop a theory of linear differential systems analogous to
the classical one for ODEs, including the obtaining of fundamental matrices,
the development of a variation of parameters formula and the expression of the
Green's functions. We also derive interesting results in the case of
differential equations with reflection and generalize the Hyperbolic Phasor
Addition Formula to the case of matrices.
|
[
{
"version": "v1",
"created": "Tue, 4 Jul 2017 07:51:09 GMT"
}
] | 2017-07-05T00:00:00
|
[
[
"Cabada",
"Alberto",
""
],
[
"Tojo",
"F. Adrián F.",
""
]
] |
"ZP0YL6KBqVBAmNI/dXPx8Qdh9mm0exOlTddzXb9v9l1M8EkZLoTNWEaX+WU1QTXpgAz5iVmOXswK4H2hSEMMQFuUosQyy56AEH0Gbe9iNN3JWZ3ArYCrrTy7oEoOgKypnyb3vLb+h9biBRfppOsUU3/KGih2kqIkSFbUvjdb1r4="
|
hep-ph/0110116
|
Mario Ivan Martinez
|
M. I. Martinez and G. Herrera (Mexico, IPN)
|
Dalitz plot slope parameters for $K \to \pi\pi\pi$ decays and two
particle interference
|
17 pages, LaTex2e, 6 figures, v2 authors' affiliation modified, to
appear in Mod. Phys. Lett. A
|
Mod.Phys.Lett. A16 (2001) 2197-2206
|
10.1142/S0217732301005151
| null |
hep-ph
| null |
We study the possible distortion of phase-space in the decays $K \to \pi \pi
\pi$, which may result from final state interference among the decay products.
Such distortion may influence the values of slope parameters extracted from the
Dalitz plot distribution of these decays. We comment on the consequences on the
magnitude of violation of the $\mid \Delta I \mid = 1/2$ rule in these decays.
|
[
{
"version": "v1",
"created": "Tue, 9 Oct 2001 00:02:44 GMT"
},
{
"version": "v2",
"created": "Thu, 11 Oct 2001 01:23:47 GMT"
}
] | 2009-11-07T00:00:00
|
[
[
"Martinez",
"M. I.",
"",
"Mexico, IPN"
],
[
"Herrera",
"G.",
"",
"Mexico, IPN"
]
] |
"oGkYfq6AmYpYVYDT3XL0/3UZHMT0EpINRNdI/5mL9VyI6Atdbs5lWm6WEiXR5arlgAh14368GcgIuDsCCGo3AtuWIEx7z1kcFPxqbPcmYOWDX52IYoBpbzyqp8YNIZzIhDW3F+64D0+0pJ/8okZAQ5Waiq1+UpMwKELUvBA6X7w="
|
2310.06744
|
Wangbo Yu
|
Wangbo Yu, Li Yuan, Yan-Pei Cao, Xiangjun Gao, Xiaoyu Li, Wenbo Hu,
Long Quan, Ying Shan, Yonghong Tian
|
HiFi-123: Towards High-fidelity One Image to 3D Content Generation
|
Accepted by ECCV 2024. Project Page:
https://drexubery.github.io/HiFi-123/
| null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Recent advances in diffusion models have enabled 3D generation from a single
image. However, current methods often produce suboptimal results for novel
views, with blurred textures and deviations from the reference image, limiting
their practical applications. In this paper, we introduce HiFi-123, a method
designed for high-fidelity and multi-view consistent 3D generation. Our
contributions are twofold: First, we propose a Reference-Guided Novel View
Enhancement (RGNV) technique that significantly improves the fidelity of
diffusion-based zero-shot novel view synthesis methods. Second, capitalizing on
the RGNV, we present a novel Reference-Guided State Distillation (RGSD) loss.
When incorporated into the optimization-based image-to-3D pipeline, our method
significantly improves 3D generation quality, achieving state-of-the-art
performance. Comprehensive evaluations demonstrate the effectiveness of our
approach over existing methods, both qualitatively and quantitatively. Video
results are available on the project page.
|
[
{
"version": "v1",
"created": "Tue, 10 Oct 2023 16:14:20 GMT"
},
{
"version": "v2",
"created": "Mon, 25 Mar 2024 11:35:55 GMT"
},
{
"version": "v3",
"created": "Fri, 12 Jul 2024 01:55:26 GMT"
}
] | 2024-07-15T00:00:00
|
[
[
"Yu",
"Wangbo",
""
],
[
"Yuan",
"Li",
""
],
[
"Cao",
"Yan-Pei",
""
],
[
"Gao",
"Xiangjun",
""
],
[
"Li",
"Xiaoyu",
""
],
[
"Hu",
"Wenbo",
""
],
[
"Quan",
"Long",
""
],
[
"Shan",
"Ying",
""
],
[
"Tian",
"Yonghong",
""
]
] |
"6GsAbjynh570KFb/9QLwO2RLVnXUK7sFUtVme388eBDmwC8ZZBBt2GYTW+mm4Ybnwg+xNxUs2svsqFmJ9yhlRHEZofBT5dqsEPzAadZkFXmDPxyCNBTgrJ2S8NsqofuRjqL1vbiqj+fCRNd9pg2HC8/4jIx3XQZATYtQHihaHis="
|
2011.14406
|
Adam Schweitzer
|
\'Ad\'am Schweitzer
|
Capacity of Lorentzian polynomials and distance to binomial
distributions
| null | null | null | null |
math.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper we study the capacity of Lorentzian polynomials. We give a new
proof of a theorem of Br\"and\'en, Leake and Pak. Our approach is probabilistic
in nature and uses a lemma about a certain distance of binomial distributions
to distributions with fixed expected value.
|
[
{
"version": "v1",
"created": "Sun, 29 Nov 2020 17:57:32 GMT"
},
{
"version": "v2",
"created": "Thu, 8 Jul 2021 15:49:08 GMT"
}
] | 2021-07-09T00:00:00
|
[
[
"Schweitzer",
"Ádám",
""
]
] |
"YnEIf46jCZraFJIfVXLc8CfrZl60z7OBAFcxff1f5VxHbCtZakVt2CyTG+eWoaWnhAz1x0ueWn0Mmlk48FK2BmmUIMQRy1CsnPQwKPImU1mZfzTIboAoLE4jptAPBLyIhWO3/Na4i2/gRPv9KmdFI83anKp3L9HUTXOcmzIaGr4="
|
1110.6467
|
Daniel Charlebois
|
Daniel A. Charlebois, Nezar Abdennur, Mads Kaern
|
Gene Expression Noise Facilitates Adaptation and Drug Resistance
Independently of Mutation
|
5 pages, 3 figures
|
Physical Review Letters, 107, 218101 (2011)
|
10.1103/PhysRevLett.107.218101
| null |
physics.bio-ph q-bio.PE
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that the effect of stress on the reproductive fitness of noisy cell
populations can be modelled as first-passage time problem, and demonstrate that
even relatively short-lived fluctuations in gene expression can ensure
long-term survival of a drug-resistant population. We examine how this effect
contributes to the development of drug-resistant cancer cells, and demonstrate
that permanent immunity can arise independently of mutations.
|
[
{
"version": "v1",
"created": "Fri, 28 Oct 2011 21:23:05 GMT"
},
{
"version": "v2",
"created": "Wed, 16 Nov 2011 04:25:53 GMT"
}
] | 2015-06-03T00:00:00
|
[
[
"Charlebois",
"Daniel A.",
""
],
[
"Abdennur",
"Nezar",
""
],
[
"Kaern",
"Mads",
""
]
] |
"+GoFfgixsdLACMN9TXM96U3tZVbUN7fhbFciYvNn9VzM0At4AoxNWnaWe62Q0rfr0A252mEsS0eJIlu4ACYZSCuQKEUz1wPmGrOQKPxmJtHMvb8Aa4CIbciLrYCOBCqorp+1f5gUhFjSUM1ioicWA98enAx2ZaMySuLWD/IaN74="
|
2505.05095
|
SungWoo Youn
|
Sungjae Bae, Junu Jeong, Younggeun Kim, SungWoo Youn, Jinsu Kim, Arjan
F. van Loo, Yasunobu Nakamura, Seonjeong Oh, Taehyeon Seong, Sergey Uchaikin,
Jihn E. Kim, and Yannis K. Semertzidis
|
Axion Dark Matter Search with Near-KSVZ Sensitivity Using the TM$_{020}$
Mode
|
7 pages, 4 figures
| null | null | null |
hep-ex
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Dark matter remains one of the most profound mysteries in modern physics,
with axions, a hypothetical particle proposed to resolve the strong CP problem,
standing as a compelling candidate. Among various experimental strategies,
cavity haloscopes currently offer the most sensitive method to detect axions,
though their searches have largely been confined to axion masses below 10
$\mu$eV. However, recent theoretical developments suggest that the axion mass
lies beyond this range. Higher-order cavity modes have been explored as a
methodological approach to expand the search range, albeit with limited success
in achieving both high sensitivity and broad tunability. In this work, we
present a sensitive search for axions with masses around 21 $\mu$eV, utilizing
the TM$_{020}$ mode of a cylindrical cavity, which incorporated an innovative
tuning mechanism. Our results reached 1.7 times the KSVZ sensitivity over 100
MHz, representing a significant improvement in this mass range and contributing
to the experimental search for axion dark matter at higher masses.
|
[
{
"version": "v1",
"created": "Thu, 8 May 2025 09:48:02 GMT"
}
] | 2025-05-09T00:00:00
|
[
[
"Bae",
"Sungjae",
""
],
[
"Jeong",
"Junu",
""
],
[
"Kim",
"Younggeun",
""
],
[
"Youn",
"SungWoo",
""
],
[
"Kim",
"Jinsu",
""
],
[
"van Loo",
"Arjan F.",
""
],
[
"Nakamura",
"Yasunobu",
""
],
[
"Oh",
"Seonjeong",
""
],
[
"Seong",
"Taehyeon",
""
],
[
"Uchaikin",
"Sergey",
""
],
[
"Kim",
"Jihn E.",
""
],
[
"Semertzidis",
"Yannis K.",
""
]
] |
"VUGcbo7im077EJn2JdP0eFSLemfIn5uDENt3W3hvsVjsSXpNQ2xlWm6dGSV0c6PjIY7l1/WsX0sJsFsA21Qxi7u2oMARTQKWFhXoLfkmEHCBXRSA6AAora2N6GmpIZ2oyC03vrIyncvylLf94GdMgd+a3Dl7BJBoSdPWjjw2bj4="
|
1206.3300
|
Andrew Ringsmuth
|
A. K. Ringsmuth, G. J. Milburn, T. M. Stace
|
Multiscale photosynthetic exciton transfer
|
9 pages, 6 figures. A significantly updated version is now published
online by Nature Physics (2012)
|
Nature Physics 8, 562-567 (2012)
|
10.1038/nphys2332
| null |
physics.bio-ph cond-mat.mtrl-sci cond-mat.soft quant-ph
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Photosynthetic light harvesting provides a natural blueprint for
bioengineered and biomimetic solar energy and light detection technologies.
Recent evidence suggests some individual light harvesting protein complexes
(LHCs) and LHC subunits efficiently transfer excitons towards chemical reaction
centers (RCs) via an interplay between excitonic quantum coherence, resonant
protein vibrations, and thermal decoherence. The role of coherence in vivo is
unclear however, where excitons are transferred through multi-LHC/RC aggregates
over distances typically large compared with intra-LHC scales. Here we assess
the possibility of long-range coherent transfer in a simple chromophore network
with disordered site and transfer coupling energies. Through renormalization we
find that, surprisingly, decoherence is diminished at larger scales, and
long-range coherence is facilitated by chromophoric clustering. Conversely,
static disorder in the site energies grows with length scale, forcing
localization. Our results suggest sustained coherent exciton transfer may be
possible over distances large compared with nearest-neighbour (n-n) chromophore
separations, at physiological temperatures, in a clustered network with small
static disorder. This may support findings suggesting long-range coherence in
algal chloroplasts, and provides a framework for engineering large chromophore
or quantum dot high-temperature exciton transfer networks.
|
[
{
"version": "v1",
"created": "Thu, 14 Jun 2012 06:08:14 GMT"
}
] | 2012-07-10T00:00:00
|
[
[
"Ringsmuth",
"A. K.",
""
],
[
"Milburn",
"G. J.",
""
],
[
"Stace",
"T. M.",
""
]
] |
"0OrZfoSyPxzYGAFbcfB9uQVLxFREdtORVhdubnl2qV3E0Au5cgZN/gYVa6Dx8rRn0gjwijWs2wZNP10hCS6tBDMWatBTxxeqGzcQT9V6IFGPlZyAaICOu4uN89qoIJL4jqe1z0j7z+jyBId3pm8Fg4/aGRx3LLMKTPLWH/gbTj4="
|
2009.00771
|
Xuerui Zhang
|
Zhang Xuerui, Yuan Xia
|
LSMVOS: Long-Short-Term Similarity Matching for Video Object
| null | null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Objective Semi-supervised video object segmentation refers to segmenting the
object in subsequent frames given the object label in the first frame. Existing
algorithms are mostly based on the objectives of matching and propagation
strategies, which often make use of the previous frame with masking or optical
flow. This paper explores a new propagation method, uses short-term matching
modules to extract the information of the previous frame and apply it in
propagation, and proposes the network of Long-Short-Term similarity matching
for video object segmentation (LSMOVS) Method: By conducting pixel-level
matching and correlation between long-term matching module and short-term
matching module with the first frame and previous frame, global similarity map
and local similarity map are obtained, as well as feature pattern of current
frame and masking of previous frame. After two refine networks, final results
are obtained through segmentation network. Results: According to the
experiments on the two data sets DAVIS 2016 and 2017, the method of this paper
achieves favorable average of region similarity and contour accuracy without
online fine tuning, which achieves 86.5% and 77.4% in terms of single target
and multiple targets. Besides, the count of segmented frames per second reached
21. Conclusion: The short-term matching module proposed in this paper is more
conducive to extracting the information of the previous frame than only the
mask. By combining the long-term matching module with the short-term matching
module, the whole network can achieve efficient video object segmentation
without online fine tuning
|
[
{
"version": "v1",
"created": "Wed, 2 Sep 2020 01:32:05 GMT"
}
] | 2020-09-03T00:00:00
|
[
[
"Xuerui",
"Zhang",
""
],
[
"Xia",
"Yuan",
""
]
] |
"39oEPojiE15wH0IVZ0D4q3S9BEWUHZvXWmdubF91/R3j4AUJZFht+M4Pe81GyyIkwg61GxmNmK8ruDmFQPRoxDEaIcBxRFz4Ebngad5iFO2BvZxCNxfWPJeX7JsKhL6ZjrenvZI6ha7FxZd5JmWEW4/3iCj9PfMrXEtULgtzBjs="
|
0912.4782
|
Wei-Xing Zhou
|
Wei-Xing Zhou (ECUST)
|
Finite-size effect and the components of multifractality in financial
volatility
|
9 RevTex pages including 9 eps figures. Comments and suggestions are
warmly welcome
|
Chaos, Solitons & Fractals 45 (2), 147-155 (2012)
|
10.1016/j.chaos.2011.11.004
| null |
q-fin.ST
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Many financial variables are found to exhibit multifractal nature, which is
usually attributed to the influence of temporal correlations and fat-tailedness
in the probability distribution (PDF). Based on the partition function approach
of multifractal analysis, we show that there is a marked finite-size effect in
the detection of multifractality, and the effective multifractality is the
apparent multifractality after removing the finite-size effect. We find that
the effective multifractality can be further decomposed into two components,
the PDF component and the nonlinearity component. Referring to the normal
distribution, we can determine the PDF component by comparing the effective
multifractality of the original time series and the surrogate data that have a
normal distribution and keep the same linear and nonlinear correlations as the
original data. We demonstrate our method by taking the daily volatility data of
Dow Jones Industrial Average from 26 May 1896 to 27 April 2007 as an example.
Extensive numerical experiments show that a time series exhibits effective
multifractality only if it possesses nonlinearity and the PDF has impact on the
effective multifractality only when the time series possesses nonlinearity. Our
method can also be applied to judge the presence of multifractality and
determine its components of multifractal time series in other complex systems.
|
[
{
"version": "v1",
"created": "Thu, 24 Dec 2009 04:00:36 GMT"
}
] | 2012-01-13T00:00:00
|
[
[
"Zhou",
"Wei-Xing",
"",
"ECUST"
]
] |
"dOAMfgjgiPpQ2BP5XWLweUZJbYScM7ErRhV475///lxDcENJYkxtmq4WO+XXlK7jyQ25Y36M2szJKHqwUkcZyUGQi/DyzlOcFvogCPQiNp2v+o4IN4HMMQypo1AaLLvZj6M1He4Ljezy1PZtIGbGI5f7Gil3apP4TmOWnkK6Vrw="
|
0805.4065
|
Tomio Umeda
|
Tomio Umeda (University of Hyogo)
|
Eigenfunctions of Dirac operators at the threshold energies
|
9 pages
| null | null |
Seminar Notes of Mathematical Sciences 11 (2008), Ibaraki University
|
math.SP math.AP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that the eigenspaces of the Dirac operator $H=\alpha\cdot (D - A(x))
+ m \beta $ at the threshold energies $\pm m$ are coincide with the direct sum
of the zero space and the kernel of the Weyl-Dirac operator $\sigma\cdot (D -
A(x))$. Based on this result, we describe the asymptotic limits of the
eigenfunctions of the Dirac operator corresponding to these threshold energies.
Also, we discuss the set of vector potentials for which the kernels of $H\mp m$
are non-trivial, i.e. ${Ker}(H\mp m) \not = \{0 \}$.
|
[
{
"version": "v1",
"created": "Tue, 27 May 2008 08:06:01 GMT"
}
] | 2008-05-28T00:00:00
|
[
[
"Umeda",
"Tomio",
"",
"University of Hyogo"
]
] |
"qHncfqPhKMbYUFX391r48UE/aRS8v5MzFJdJfZx+91xleFoNCARt2m6Pa6UwYr+j4Ar3S3ucHlUPs1shUEp3wFm2oMATY1qUED48bKUiwL3LnTyIboBpPEsrAMoPIKyogLX/v94jum/g9Z7pqmdWA1Xa1Ip+DaPwTBaeND4jy7o="
|
2302.05076
|
Yuanzhi Zhou
|
Hong Wang, Yuanzhi Zhou, Chi Zhang, Chen Peng, Mingxia Huang, Yi Liu,
Lintao Zhang
|
XFL: A High Performace, Lightweighted Federated Learning Framework
| null | null | null | null |
cs.LG
|
http://creativecommons.org/licenses/by/4.0/
|
This paper introduces XFL, an industrial-grade federated learning project.
XFL supports training AI models collaboratively on multiple devices, while
utilizes homomorphic encryption, differential privacy, secure multi-party
computation and other security technologies ensuring no leakage of data. XFL
provides an abundant algorithms library, integrating a large number of
pre-built, secure and outstanding federated learning algorithms, covering both
the horizontally and vertically federated learning scenarios. Numerical
experiments have shown the prominent performace of these algorithms. XFL builds
a concise configuration interfaces with presettings for all federation
algorithms, and supports the rapid deployment via docker containers.Therefore,
we believe XFL is the most user-friendly and easy-to-develop federated learning
framework. XFL is open-sourced, and both the code and documents are available
at https://github.com/paritybit-ai/XFL.
|
[
{
"version": "v1",
"created": "Fri, 10 Feb 2023 06:25:00 GMT"
}
] | 2023-02-13T00:00:00
|
[
[
"Wang",
"Hong",
""
],
[
"Zhou",
"Yuanzhi",
""
],
[
"Zhang",
"Chi",
""
],
[
"Peng",
"Chen",
""
],
[
"Huang",
"Mingxia",
""
],
[
"Liu",
"Yi",
""
],
[
"Zhang",
"Lintao",
""
]
] |
"wHkNboznllrELcIV/Xj0aCTrh5ecv7HTTlN7aDt/+xlE4BLdYpptWAQMezM30KDnxU6dAbWsGqmorHypYFW9QAWSIMRxySW0EjqI6F++NF2FLxWAtgOqrU6T79g6hZ6Jrrq13bKmn3KjBb7/IO3Uq83HGCR/9LNDWI5HjrvWHr8="
|
1005.0038
|
Kouji Yano
|
Takao Hirayama and Kouji Yano
|
Strong solutions of Tsirelson's equation in discrete time taking values
in compact spaces with semigroup action
| null | null | null | null |
math.PR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Under the assumption that the infinite product of evolution process converges
almost surely, the set of strong solutions are characterized by a compact
space, which may be regarded as the set of possible initial states.
|
[
{
"version": "v1",
"created": "Sat, 1 May 2010 01:48:20 GMT"
},
{
"version": "v2",
"created": "Wed, 16 May 2012 16:58:09 GMT"
}
] | 2015-03-17T00:00:00
|
[
[
"Hirayama",
"Takao",
""
],
[
"Yano",
"Kouji",
""
]
] |
"fPkcfoizm956lsU/dXOc+WbLZEQ1D7M5VAFwebN0t13EQFrVSsrNWi6JO+1AwaCj4I6Vi3OMWlcJu1zkQHIURKS0qUBTQ8CcGLsUaJhmZP3Z6bwAa4CpLj2TpQ8fALwPjbelepy7AE/QBJ95oCcWQ83bFIl2xKMwbVbUVfQTE7o="
|
2106.09125
|
Danylo Malyuta
|
Danylo Malyuta, Taylor P. Reynolds, Michael Szmuk, Thomas Lew,
Riccardo Bonalli, Marco Pavone, Behcet Acikmese
|
Convex Optimization for Trajectory Generation
|
68 pages, 42 figures, 5 tables. This work has been submitted to the
IEEE for possible publication
| null | null | null |
math.OC cs.RO cs.SY eess.SY
|
http://creativecommons.org/licenses/by/4.0/
|
Reliable and efficient trajectory generation methods are a fundamental need
for autonomous dynamical systems of tomorrow. The goal of this article is to
provide a comprehensive tutorial of three major convex optimization-based
trajectory generation methods: lossless convexification (LCvx), and two
sequential convex programming algorithms known as SCvx and GuSTO. In this
article, trajectory generation is the computation of a dynamically feasible
state and control signal that satisfies a set of constraints while optimizing
key mission objectives. The trajectory generation problem is almost always
nonconvex, which typically means that it is not readily amenable to efficient
and reliable solution onboard an autonomous vehicle. The three algorithms that
we discuss use problem reformulation and a systematic algorithmic strategy to
nonetheless solve nonconvex trajectory generation tasks through the use of a
convex optimizer. The theoretical guarantees and computational speed offered by
convex optimization have made the algorithms popular in both research and
industry circles. To date, the list of applications includes rocket landing,
spacecraft hypersonic reentry, spacecraft rendezvous and docking, aerial motion
planning for fixed-wing and quadrotor vehicles, robot motion planning, and
more. Among these applications are high-profile rocket flights conducted by
organizations like NASA, Masten Space Systems, SpaceX, and Blue Origin. This
article aims to give the reader the tools and understanding necessary to work
with each algorithm, and to know what each method can and cannot do. A publicly
available source code repository supports the provided numerical examples. By
the end of the article, the reader should be ready to use the methods, to
extend them, and to contribute to their many exciting modern applications.
|
[
{
"version": "v1",
"created": "Wed, 16 Jun 2021 20:55:18 GMT"
}
] | 2021-06-18T00:00:00
|
[
[
"Malyuta",
"Danylo",
""
],
[
"Reynolds",
"Taylor P.",
""
],
[
"Szmuk",
"Michael",
""
],
[
"Lew",
"Thomas",
""
],
[
"Bonalli",
"Riccardo",
""
],
[
"Pavone",
"Marco",
""
],
[
"Acikmese",
"Behcet",
""
]
] |
"+PKAbryikJpQHdNXXWvdsyd7VGWVK3PVXANnaPdv7hF4QB6NSJnNGOSHyXG1x3DTFA/dj1GI2u9KilnNQwD9hFUCqUEzxdSomBy8aJ7mME2FWxyAfqC9qZ25rJqJgd6RiLaH/Zq2rfqiAJ9hwO+UIc/IjiR/VoNkHsFGHKgCdio="
|
1102.2445
|
Michael Dietz
|
Michael Dietz and Shashi Shekhar and Yuliy Pisetsky and Anhei Shu and
Dan S. Wallach
|
Quire: Lightweight Provenance for Smart Phone Operating Systems
| null | null | null | null |
cs.CR
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Smartphone apps often run with full privileges to access the network and
sensitive local resources, making it difficult for remote systems to have any
trust in the provenance of network connections they receive. Even within the
phone, different apps with different privileges can communicate with one
another, allowing one app to trick another into improperly exercising its
privileges (a Confused Deputy attack). In Quire, we engineered two new security
mechanisms into Android to address these issues. First, we track the call chain
of IPCs, allowing an app the choice of operating with the diminished privileges
of its callers or to act explicitly on its own behalf. Second, a lightweight
signature scheme allows any app to create a signed statement that can be
verified anywhere inside the phone. Both of these mechanisms are reflected in
network RPCs, allowing remote systems visibility into the state of the phone
when an RPC is made. We demonstrate the usefulness of Quire with two example
applications. We built an advertising service, running distinctly from the app
which wants to display ads, which can validate clicks passed to it from its
host. We also built a payment service, allowing an app to issue a request which
the payment service validates with the user. An app cannot not forge a payment
request by directly connecting to the remote server, nor can the local payment
service tamper with the request.
|
[
{
"version": "v1",
"created": "Fri, 11 Feb 2011 21:24:57 GMT"
}
] | 2011-02-15T00:00:00
|
[
[
"Dietz",
"Michael",
""
],
[
"Shekhar",
"Shashi",
""
],
[
"Pisetsky",
"Yuliy",
""
],
[
"Shu",
"Anhei",
""
],
[
"Wallach",
"Dan S.",
""
]
] |
"GPlsb4jgGbLDN0I7+eAXoWRjUrdU+vfBZHNy/xd7aVzI9BrVXlpvWIQkCulwSaSnBUr1C3nsG8couFUsclw9mXyXIMZxwSSMGpmaTLqiIO3PHyFiaJIqKQ4nrxaHB1b4jqu1mfKChmwSAJN+oe1Ug936HiRvVtHhbuJEcxwbJj8="
|
2002.00326
|
Michael Betancourt
|
Michael Betancourt and Charles C. Margossian and Vianey Leos-Barajas
|
The Discrete Adjoint Method: Efficient Derivatives for Functions of
Discrete Sequences
|
16 pages, 1 figure
| null | null | null |
stat.CO
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Gradient-based techniques are becoming increasingly critical in quantitative
fields, notably in statistics and computer science. The utility of these
techniques, however, ultimately depends on how efficiently we can evaluate the
derivatives of the complex mathematical functions that arise in applications.
In this paper we introduce a discrete adjoint method that efficiently evaluates
derivatives for functions of discrete sequences.
|
[
{
"version": "v1",
"created": "Sun, 2 Feb 2020 05:02:27 GMT"
}
] | 2020-02-04T00:00:00
|
[
[
"Betancourt",
"Michael",
""
],
[
"Margossian",
"Charles C.",
""
],
[
"Leos-Barajas",
"Vianey",
""
]
] |
"bOIIbojiEbqIHdJ7fWLc6QZpDCS0u7J13Fd7fJ9+91Th8AoJSgrN2EaCe813wKbj4A6ZwVWsmCsKuHilAEEZwJmeqcRzy1aOEr7kfHxgdd2F/5/AMoCpLPu96JIJ5DsJzqunPdy2jerSBB/1YO9UA9/SBAp+NINkekbU3zISVrg="
|
1207.2724
|
Robert Bussmann
|
R. S. Bussmann, M. A. Gurwell, Hai Fu, D. J. B. Smith, S. Dye, R.
Auld, M. Baes, A. J. Baker, D. Bonfield, A. Cava, D. L. Clements, A. Cooray,
K. Coppin, H. Dannerbauer, A. Dariush, G. De Zotti, L. Dunne, S. Eales, J.
Fritz, R. Hopwood, E. Ibar, R. J. Ivison, M. J. Jarvis, S. Kim, L. L. Leeuw,
S. Maddox, M. J. Michalowski, M. Negrello, E. Pascale, M. Pohlen, D. A.
Riechers, E. Rigby, Douglas Scott, P. Temi, P. P. Van der Werf, A. Verma, J.
Wardlow, D. Wilner
|
A Detailed Gravitational Lens Model Based on Submillimeter Array and
Keck Adaptive Optics Imaging of a Herschel-ATLAS Sub-millimeter Galaxy at
z=4.243
|
Accepted to the ApJ. 12 pages, 6 figures, 3 tables
| null |
10.1088/0004-637X/756/2/134
| null |
astro-ph.CO astro-ph.GA
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We present high-spatial resolution imaging obtained with the Submillimeter
Array (SMA) at 880um and the Keck Adaptive Optics (AO) system at Ks-band of a
gravitationally lensed sub-millimeter galaxy (SMG) at z=4.243 discovered in the
Herschel-Astrophysical Terahertz Large Area Survey. The SMA data (angular
resolution ~0.6") resolve the dust emission into multiple lensed images, while
the Keck AO Ks-band data (angular resolution ~0.1") resolve the lens into a
pair of galaxies separated by 0.3". We present an optical spectrum of the
foreground lens obtained with the Gemini-South telescope that provides a lens
redshift of z_lens = 0.595 +/- 0.005. We develop and apply a new lens modeling
technique in the visibility plane that shows that the SMG is magnified by a
factor of mu = 4.1 +/- 0.2 and has an intrinsic infrared (IR) luminosity of
L_IR = (2.1 +/- 0.2) x 10^13 Lsun. We measure a half-light radius of the
background source of r_s = 4.4 +/- 0.5 kpc which implies an IR luminosity
surface density of Sigma_IR = (3.4 +/- 0.9) x 10^11 Lsun kpc^-2, a value that
is typical of z > 2 SMGs but significantly lower than IR luminous galaxies at
z~0. The two lens galaxies are compact (r_lens ~ 0.9 kpc) early-types with
Einstein radii of theta_E1 = 0.57 +/- 0.01 and theta_E2 = 0.40 +/- 0.01 that
imply masses of M_lens1 = (7.4 +/- 0.5) x 10^10 Msun and M_lens2 = (3.7 +/-
0.3) x 10^10 Msun. The two lensing galaxies are likely about to undergo a
dissipationless merger, and the mass and size of the resultant system should be
similar to other early-type galaxies at z~0.6. This work highlights the
importance of high spatial resolution imaging in developing models of strongly
lensed galaxies discovered by Herschel.
|
[
{
"version": "v1",
"created": "Wed, 11 Jul 2012 17:55:55 GMT"
}
] | 2015-06-05T00:00:00
|
[
[
"Bussmann",
"R. S.",
""
],
[
"Gurwell",
"M. A.",
""
],
[
"Fu",
"Hai",
""
],
[
"Smith",
"D. J. B.",
""
],
[
"Dye",
"S.",
""
],
[
"Auld",
"R.",
""
],
[
"Baes",
"M.",
""
],
[
"Baker",
"A. J.",
""
],
[
"Bonfield",
"D.",
""
],
[
"Cava",
"A.",
""
],
[
"Clements",
"D. L.",
""
],
[
"Cooray",
"A.",
""
],
[
"Coppin",
"K.",
""
],
[
"Dannerbauer",
"H.",
""
],
[
"Dariush",
"A.",
""
],
[
"De Zotti",
"G.",
""
],
[
"Dunne",
"L.",
""
],
[
"Eales",
"S.",
""
],
[
"Fritz",
"J.",
""
],
[
"Hopwood",
"R.",
""
],
[
"Ibar",
"E.",
""
],
[
"Ivison",
"R. J.",
""
],
[
"Jarvis",
"M. J.",
""
],
[
"Kim",
"S.",
""
],
[
"Leeuw",
"L. L.",
""
],
[
"Maddox",
"S.",
""
],
[
"Michalowski",
"M. J.",
""
],
[
"Negrello",
"M.",
""
],
[
"Pascale",
"E.",
""
],
[
"Pohlen",
"M.",
""
],
[
"Riechers",
"D. A.",
""
],
[
"Rigby",
"E.",
""
],
[
"Scott",
"Douglas",
""
],
[
"Temi",
"P.",
""
],
[
"Van der Werf",
"P. P.",
""
],
[
"Verma",
"A.",
""
],
[
"Wardlow",
"J.",
""
],
[
"Wilner",
"D.",
""
]
] |
"1GGA3Ar0sr7ISe/XJUv1cSSjQEC0j5k7Uts6TxhsvFBDyWvVAWgN2i6PG3n0qpOnsA+1z3UNf8cNuF+ly1CVBBOchMAVZ1ieEjTkad4mkPXRfR6g/oU4LK2cyhgvIa6IgCU3h2SYjS/mhL9xruZFEc7b3pl3VPJ0SQNaVrgaKjg="
|
1005.4610
|
Craig Roberts
|
Stanley J. Brodsky, Craig D. Roberts, Robert Shrock and Peter C. Tandy
|
Essence of the vacuum quark condensate
|
5 pages, 1 figure
|
Phys.Rev.C82:022201,2010
|
10.1103/PhysRevC.82.022201
|
SLAC-PUB-14107, CP3-Origins-2010-18
|
nucl-th astro-ph.CO hep-lat hep-ph hep-th
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We show that the chiral-limit vacuum quark condensate is qualitatively
equivalent to the pseudoscalar meson leptonic decay constant in the sense that
they are both obtained as the chiral-limit value of well-defined
gauge-invariant hadron-to-vacuum transition amplitudes that possess a spectral
representation in terms of the current-quark mass. Thus, whereas it might
sometimes be convenient to imagine otherwise, neither is essentially a constant
mass-scale that fills all spacetime. This means, in particular, that the quark
condensate can be understood as a property of hadrons themselves, which is
expressed, for example, in their Bethe-Salpeter or light-front wavefunctions.
|
[
{
"version": "v1",
"created": "Tue, 25 May 2010 15:48:21 GMT"
}
] | 2011-08-23T00:00:00
|
[
[
"Brodsky",
"Stanley J.",
""
],
[
"Roberts",
"Craig D.",
""
],
[
"Shrock",
"Robert",
""
],
[
"Tandy",
"Peter C.",
""
]
] |
"oEkcfgKUuNp7GPF35VL0+23J5XCQl5AB1JcK/7P/ZXxIWQtNGuxB2WaDaqVgwLXjmLz923OkXkkJsj9yGEo9Q0s0oUwWZ1G+nNw4aH6mgPCZbiwAa4m5Pjyrbg4tJbwIyjX2v+4BDs/yhL9tq0ZEC4Ta/il+Q4HwSJbU1Twzzro="
|
2502.04044
|
Reggie Pantig
|
Hira Waseem, Nikko John Leo S. Lobos, Ali \"Ovg\"un, Reggie C. Pantig
|
Analyzing Deflection Angles and Photon Sphere Dynamics of Magnetically Charged Black Holes in Nonlinear Electrodynamic
|
13 pages, 6 figures. This is the published version
|
Eur. Phys. J. C (2025) 85:629
|
10.1140/epjc/s10052-025-14373-w
| null |
gr-qc
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this paper, we investigate the gravitational lensing properties of magnetically charged black holes within the framework of nonlinear electrodynamics. We derive the deflection angle and examine the influence of the nonlinear electrodynamics parameter $\xi$ on light bending. We initially employ a geometric approach based on the Gauss-Bonnet theorem to analyze the gravitational deflection of null and timelike particles. This method encapsulates the global characteristics of the lensing effect in an elegant manner. In the subsequent part of the work, we explore the impact of nonlinear electromagnetic corrections on the black hole shadow. Using numerical techniques, we study the behavior of the photon sphere and demonstrate that a reduction in the photon sphere radius leads to a correspondingly smaller shadow. We compare these results with those for the Schwarzschild and Reissner-Nordstr\"om black holes, highlighting the distinctive features introduced by nonlinear electrodynamics. Furthermore, we examine the strong deflection limit for light trajectories near these black holes, focusing on the roles of both the magnetic charge $Q$ and the nonlinear parameter $\xi$. Our analysis reveals that the combined effects of $Q$ and $\xi$ enhance the strong deflection angle, resulting in a more pronounced lensing effect than that predicted by the classical Reissner-Nordstr\"om solution. These findings suggest that the nonlinear interactions may provide a potential observational signature for identifying NED black holes.
|
[
{
"version": "v1",
"created": "Thu, 06 Feb 2025 13:04:15 GMT"
},
{
"version": "v2",
"created": "Fri, 20 Jun 2025 14:27:02 GMT"
}
] | 2025-06-23T00:00:00
|
[
[
"Waseem",
"Hira",
""
],
[
"Lobos",
"Nikko John Leo S.",
""
],
[
"Övgün",
"Ali",
""
],
[
"Pantig",
"Reggie C.",
""
]
] |
"kFvEXgqDrMZ5URDTVVPQcW3Bcif8n4vrUNJjWRju911gyE+FR4x42i6Pm/Tww+XiIIe1reeMbssJoFslSFyhhVOWoN2U81i2FrxqbNskhOTJXXyQL8BoPSmJ6H2LJZ6ohzU3r+qwjG9m1ZfpoOdFI6Wbyo13HJPgTJfSBL6Wqj4="
|
1208.5984
|
S\'ebastien Tremblay
|
Kira V. Khmelnytskaya, Vladislav V. Kravchenko, Sergii M. Torba and
S\'ebastien Tremblay
|
Wave polynomials, transmutations and Cauchy's problem for the
Klein-Gordon equation
|
31 pages, 8 figures (16 graphs)
|
J. Math. Anal. Appl. 399 (2013) 191-212
|
10.1016/j.jmaa.2012.10.013
| null |
math.AP math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
We prove a completeness result for a class of polynomial solutions of the
wave equation called wave polynomials and construct generalized wave
polynomials, solutions of the Klein-Gordon equation with a variable
coefficient. Using the transmutation (transformation) operators and their
recently discovered mapping properties we prove the completeness of the
generalized wave polynomials and use them for an explicit construction of the
solution of the Cauchy problem for the Klein-Gordon equation. Based on this
result we develop a numerical method for solving the Cauchy problem and test
its performance.
|
[
{
"version": "v1",
"created": "Wed, 29 Aug 2012 18:40:49 GMT"
}
] | 2012-11-12T00:00:00
|
[
[
"Khmelnytskaya",
"Kira V.",
""
],
[
"Kravchenko",
"Vladislav V.",
""
],
[
"Torba",
"Sergii M.",
""
],
[
"Tremblay",
"Sébastien",
""
]
] |
"7/kYfqKjIcxa8VLXdVLceUQfJ3A8R8uRVNd5/TVftF1MfItVSk1tWEaHeeSU4aXjsBv1o3GOHlUMtHklCBc9XAmEIMBTw9OUEL08Lp4iN/2Z7RxIbqApqqgb4QMNpayIdCOnPP47g+3iBbdlgm9UA9/bjKp/nqHyYlLUrnIfTvo="
|
1106.5986
|
Elisha Falbel
|
Juliette Genzmer
|
Trace Fields of Subgroups of SU(n,1))
| null | null | null | null |
math.RT
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this note, we study the field generated by the traces of subgroups of
SU(n,1). Under some hypotheses, the trace field of a group $\Gamma \subset$
SU(2,1) is equal to the field generated by the coefficients of the matrices in
$\Gamma$. If the group is the image of a representation of the fundamental
group of a triangulated 3-manifold, we can relate the trace field to a
geometric invariant. For an arithmetic group of the first type in SU(n,1), up
to conjugacy, the trace field and the field of the coefficients are the same.
|
[
{
"version": "v1",
"created": "Wed, 29 Jun 2011 16:11:28 GMT"
}
] | 2011-06-30T00:00:00
|
[
[
"Genzmer",
"Juliette",
""
]
] |
"CHmYfhLlKcjRUFC3bVL0920p9EC0lrMh1Edq1bX/d1xCeAtdCiRl2O6VO/U46K2nlE5xw2ekPMusoXyoyEocQLGepcUf5l+sELg06r8grnnbGS3A4px4Loyp7sY+BYypqSf/rdYRBk/gxZf5gmZFCkXaCiF/z+JwQQLMuqNKgjo="
|
2508.02799
|
Rahul C. Shah
|
Jessica Sanson, Rahul C. Shah, Maximilian Pinaroc, Valerio Frascolla
|
Extracting Range-Doppler Information of Moving Targets from Wi-Fi Channel State Information
| null | null | null | null |
eess.SP cs.AI
|
http://creativecommons.org/licenses/by/4.0/
|
This paper presents, for the first time, a method to extract both range and Doppler information from commercial Wi-Fi Channel State Information (CSI) using a monostatic (single transceiver) setup. Utilizing the CSI phase in Wi-Fi sensing from a Network Interface Card (NIC) not designed for full-duplex operation is challenging due to (1) Hardware asynchronization, which introduces significant phase errors, and (2) Proximity of transmit (Tx) and receive (Rx) antennas, which creates strong coupling that overwhelms the motion signal of interest. We propose a new signal processing approach that addresses both challenges via three key innovations: Time offset cancellation, Phase alignment correction, and Tx/Rx coupling mitigation. Our method achieves cm-level accuracy in range and Doppler estimation for moving targets, validated using a commercial Intel Wi-Fi AX211 NIC. Our results show successful detection and tracking of moving objects in realistic environments, establishing the feasibility of high-precision sensing using standard Wi-Fi packet communications and off-the-shelf hardware without requiring any modification or specialized full-duplex capabilities.
|
[
{
"version": "v1",
"created": "Mon, 04 Aug 2025 18:10:18 GMT"
}
] | 2025-08-06T00:00:00
|
[
[
"Sanson",
"Jessica",
""
],
[
"Shah",
"Rahul C.",
""
],
[
"Pinaroc",
"Maximilian",
""
],
[
"Frascolla",
"Valerio",
""
]
] |
"UNMITono0qowEcL8pWNjcwyzW30k7dPjUGMj/k17+1zi5Epd+NDNWo6Pm/U30YWvig6xXV2oXACoilssI8I5mUyGgJSzxHTYDvmqqZ9XMW2hXzag7wDDLeyf5tqypL6ojD0VlaKFnOKURLN4YMYEgcXSGi1/Z9J9TEvW7goaNzs="
|
2006.07419
|
Amer AlGhadhban Dr.
|
Amer AlGhadhban
|
F4Tele: FSO for Data Center Network Management and Packet Telemetry
| null | null | null | null |
cs.NI
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The proliferation of bandwidth-hungry applications and services forces
datacenter (DC) administrators to optimize the utilization of available
resources. Precisely, the network share of management traffic has grown
significantly because DC networks are becoming more sophisticated and require a
massive amount of data for efficient debugging and troubleshooting.
Accordingly, we use free space optics communication (FSO) with wavelength
division multiplexing (WDM) technology to build a flexible yet high-performance
logical network responsible for management traffic. The FSO-WDM can provide
reconfigurable multi-terabit topology over line-of-sight (LoS) links. Due to
space and processing capacity reasons, we can not offer direct connections from
every data rack to the network management racks. Alternatively, the data racks
are grouped together as each group is serviced for a duration of time matches
its average arrival-rate. Since the data racks showed different arrival-rates,
the hotspot racks are allocated with longer service time. The evaluation
results show that F4Tele carried out high throughput close to the expensive
solution (benchmark).
|
[
{
"version": "v1",
"created": "Fri, 12 Jun 2020 18:48:50 GMT"
}
] | 2020-06-16T00:00:00
|
[
[
"AlGhadhban",
"Amer",
""
]
] |
"ddhIXJCqklj7uQJZVWN1sifzQ2XQZ4PhVNlzxl1971lARN6UUkDNXqaXmegE86jDAk71zH2s2P8Y2F2ob1F5FMeUiNERTiSsQXigq5smEWnBfQWgS0wWPUy3qJgeBY6Yjjc2vdqmhX4mBLNp8+8vI83WGW3zVrJATmsW3u+HHjk="
|
2403.15693
|
Shuo Wang
|
Lanxin Xu, Shuo Wang
|
Technical Report: Masked Skeleton Sequence Modeling for Learning Larval
Zebrafish Behavior Latent Embeddings
| null | null | null | null |
cs.CV
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this report, we introduce a novel self-supervised learning method for
extracting latent embeddings from behaviors of larval zebrafish. Drawing
inspiration from Masked Modeling techniquesutilized in image processing with
Masked Autoencoders (MAE) \cite{he2022masked} and in natural language
processing with Generative Pre-trained Transformer (GPT)
\cite{radford2018improving}, we treat behavior sequences as a blend of images
and language. For the skeletal sequences of swimming zebrafish, we propose a
pioneering Transformer-CNN architecture, the Sequence Spatial-Temporal
Transformer (SSTFormer), designed to capture the inter-frame correlation of
different joints. This correlation is particularly valuable, as it reflects the
coordinated movement of various parts of the fish body across adjacent frames.
To handle the high frame rate, we segment the skeleton sequence into distinct
time slices, analogous to "words" in a sentence, and employ self-attention
transformer layers to encode the consecutive frames within each slice,
capturing the spatial correlation among different joints. Furthermore, we
incorporate a CNN-based attention module to enhance the representations
outputted by the transformer layers. Lastly, we introduce a temporal feature
aggregation operation between time slices to improve the discrimination of
similar behaviors.
|
[
{
"version": "v1",
"created": "Sat, 23 Mar 2024 02:58:10 GMT"
}
] | 2024-03-26T00:00:00
|
[
[
"Xu",
"Lanxin",
""
],
[
"Wang",
"Shuo",
""
]
] |
"yMoIbqjiMo7xk1OXbSPcK01pBdWUOekFUUd2a792+RnG0AsZQBltfAYXO+mHwrbvw169vwWvmososji1QC57gGMSKsAbwUa4E7JI7PcwcsmJ27zCYgz8vYeT7VscBD4Bjr63ebqCz+niRZd9gm+GC4+dCK13dILpaIBUH6paFr0="
|
2201.13069
|
Zhenqian Li
|
Zhenqian Li
|
On a question of Koll\'{a}r
|
Comments are welcome!
| null | null | null |
math.CV
|
http://creativecommons.org/licenses/by-nc-sa/4.0/
|
In this note, we establish a generalized analytic inversion of adjunction via
the Nadel-Ohsawa multiplier/adjoint ideal sheaves associated to
plurisubharmonic (psh) functions for log pairs, by which we answer a question
of Koll\'{a}r in full generality.
|
[
{
"version": "v1",
"created": "Mon, 31 Jan 2022 09:01:55 GMT"
}
] | 2022-02-01T00:00:00
|
[
[
"Li",
"Zhenqian",
""
]
] |
"TWEcLYLkgaBIW9IZbVqQ8QZtZqdcM7N50VN13ZX/c1xCOFmJ6wLNUC6HesVyxbSrgIrxF3uoXNeMpXyFCioekNudIRQSy1GCFP2ETba2FFmf+C/IaIA4P6A/qt8ZhZkZuiknnVTxje9iZlfrI2VWMlXalIhuz+HwCPLUFrNaErg="
|
2006.11504
|
Zhigang Wu
|
Zhigang Wu, Shizhong Zhang and Hui Zhai
|
Dynamical Kosterlitz-Thouless Theory for Two-Dimensional Ultracold
Atomic Gases
|
11 pages, 4 figures
|
Phys. Rev. A 102, 043311 (2020)
|
10.1103/PhysRevA.102.043311
| null |
cond-mat.quant-gas
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
In this letter we develop a theory for the first and second sound in a
two-dimensional atomic superfluid across the superfluid transition based on the
dynamic Koterlitz-Thouless theory. We employ a set of modified two-fluid
hydrodynamic equations which incorporate the dynamics of the quantised
vortices, rather than the conventional ones for a three-dimensional superfluid.
As far as the sound dispersion equation is concerned, the modification is
essentially equivalent to replacing the static superfluid density with a
frequency dependent one, renormalised by the frequency dependent "dielectric
constant" of the vortices. This theory has two direct consequences. First,
because the renormalised superfluid density at finite frequencies does not
display discontinuity across the superfluid transition, in contrast to the
static superfluid density, the sound velocities vary smoothly across the
transition. Second, the theory includes dissipation due to free vortices, and
thus naturally describes the sound-to-diffusion crossover for the second sound
in the normal phase. With only one fitting parameter, our theory gives a
perfect agreement with the experimental measurements of sound velocities across
the transition, as well as the quality factor in the vicinity of the
transition. The predictions from this theory can be further verified by future
experiments.
|
[
{
"version": "v1",
"created": "Sat, 20 Jun 2020 06:55:19 GMT"
}
] | 2020-10-14T00:00:00
|
[
[
"Wu",
"Zhigang",
""
],
[
"Zhang",
"Shizhong",
""
],
[
"Zhai",
"Hui",
""
]
] |
"8GsAXhqlKF73mLjy/Vv887fJfZTSn8uVRldGez1+MV1MwBtZSgRN3CaeeWTxZrXjyDn4QzesTlEodD9gWFEFSjm06JJa51K+HFXsaF9mFPmD7iUIaYCpuT2I8NoMAFgpwnenn9uij/7qFZd9sk4ug80a7o92QaNsT9PUjzhaxng="
|
2308.02271
|
Chao Zheng
|
Xu Xu, Chao Zheng
|
Combinatorial curvature flows with surgery for inversive distance circle
packings on surfaces
| null | null | null | null |
math.DG
|
http://creativecommons.org/licenses/by/4.0/
|
Inversive distance circle packings introduced by Bowers-Stephenson are
natural generalizations of Thurston's circle packings on surfaces. To find
piecewise Euclidean metrics on surfaces with prescribed combinatorial
curvatures, we introduce the combinatorial Calabi flow, the fractional
combinatorial Calabi flow and the combinatorial $p$-th Calabi flow for the
Euclidean inversive distance circle packings. Due to the singularities possibly
developed by these combinatorial curvature flows, the longtime existence and
convergence of these combinatorial curvature flows have been a difficult
problem for a long time. To handle the potential singularities along these
combinatorial curvature flows, we do surgery along these flows by edge flipping
under the weighted Delaunay condition. Using the discrete conformal theory
recently established by Bobenko-Lutz for decorated piecewise Euclidean metrics
on surfaces, we prove the longtime existence and global convergence for the
solutions of these combinatorial curvature flows with surgery. This provides
effective algorithms for finding piecewise Euclidean metrics on surfaces with
prescribed combinatorial curvatures.
|
[
{
"version": "v1",
"created": "Fri, 4 Aug 2023 11:53:48 GMT"
}
] | 2023-08-07T00:00:00
|
[
[
"Xu",
"Xu",
""
],
[
"Zheng",
"Chao",
""
]
] |
"fPkYf46vEwT4FdOfdUDhM2Nr5Pe0x7tpABcbzV3/7VFvZHsJS4LsmE6XD6xxw51nkQ51j1uAGk+MJFiFWAp9BLkfIYQTZVSUEJwmaZ9kV83EfDTILoCprIWpqN4NAp45pba3ddYyrP/yZ5d5ZqVQI0/fRCV+X/PgTPNMXrAG+io="
|
2205.04305
|
Alexey Lubashevskiy Dr.
|
I. Alekseev, K. Balej, V. Belov, S. Evseev, D. Filosofov, M. Fomina,
Z. Hons, D. Karaivanov, S. Kazartsev, J. Khushvaktov, A. Kuznetsov, A.
Lubashevskiy, D. Medvedev, D. Ponomarev, A. Rakhimov, K. Shakhov, E.
Shevchik, M. Shirchenko, K. Smolek, S. Rozov, I. Rozova, S. Vasilyev, E.
Yakushev, and I. Zhitnikov (the nuGeN Collaboration)
|
First results of the nuGeN experiment on coherent elastic
neutrino-nucleus scattering
| null |
Phys. Rev. D 106, L051101, (2022)
|
10.1103/PhysRevD.106.L051101
| null |
nucl-ex hep-ex
|
http://creativecommons.org/licenses/by/4.0/
|
The nuGeN experiment is aimed to investigate neutrino properties using
antineutrinos from the reactor of the Kalinin Nuclear Power Plant. The
experimental setup is located at about 11 meters from the center of the 3.1
GWth reactor core. Scattering of the antineutrinos from the reactor is detected
with low energy threshold high purity germanium detector. Passive and active
shieldings are used to suppress all kinds of backgrounds coming from
surrounding materials and cosmic radiation. The description of the experimental
setup together with the first results is presented. The data taken in regimes
with reactor ON (94.50 days) and reactor OFF (47.09 days) have been compared.
No significant difference between spectra of two data sets is observed, i.e. no
positive signals for coherent elastic neutrino-nucleus scattering are detected.
Under Standard Model assumptions about coherent neutrino scattering an upper
limit on a quenching parameter k < 0.26 (90 \% C.L.) in germanium has been set.
|
[
{
"version": "v1",
"created": "Mon, 9 May 2022 14:12:00 GMT"
},
{
"version": "v2",
"created": "Thu, 14 Jul 2022 14:43:57 GMT"
}
] | 2022-09-13T00:00:00
|
[
[
"Alekseev",
"I.",
"",
"the nuGeN Collaboration"
],
[
"Balej",
"K.",
"",
"the nuGeN Collaboration"
],
[
"Belov",
"V.",
"",
"the nuGeN Collaboration"
],
[
"Evseev",
"S.",
"",
"the nuGeN Collaboration"
],
[
"Filosofov",
"D.",
"",
"the nuGeN Collaboration"
],
[
"Fomina",
"M.",
"",
"the nuGeN Collaboration"
],
[
"Hons",
"Z.",
"",
"the nuGeN Collaboration"
],
[
"Karaivanov",
"D.",
"",
"the nuGeN Collaboration"
],
[
"Kazartsev",
"S.",
"",
"the nuGeN Collaboration"
],
[
"Khushvaktov",
"J.",
"",
"the nuGeN Collaboration"
],
[
"Kuznetsov",
"A.",
"",
"the nuGeN Collaboration"
],
[
"Lubashevskiy",
"A.",
"",
"the nuGeN Collaboration"
],
[
"Medvedev",
"D.",
"",
"the nuGeN Collaboration"
],
[
"Ponomarev",
"D.",
"",
"the nuGeN Collaboration"
],
[
"Rakhimov",
"A.",
"",
"the nuGeN Collaboration"
],
[
"Shakhov",
"K.",
"",
"the nuGeN Collaboration"
],
[
"Shevchik",
"E.",
"",
"the nuGeN Collaboration"
],
[
"Shirchenko",
"M.",
"",
"the nuGeN Collaboration"
],
[
"Smolek",
"K.",
"",
"the nuGeN Collaboration"
],
[
"Rozov",
"S.",
"",
"the nuGeN Collaboration"
],
[
"Rozova",
"I.",
"",
"the nuGeN Collaboration"
],
[
"Vasilyev",
"S.",
"",
"the nuGeN Collaboration"
],
[
"Yakushev",
"E.",
"",
"the nuGeN Collaboration"
],
[
"Zhitnikov",
"I.",
"",
"the nuGeN Collaboration"
]
] |
"9niQTi6gusrQGOH3bdrc8hzrddBIH5ORVs9qcRHvZVxIxApVc9R9WCSUezjQUCLnck39w/WsPICJJj8qKWk5iAmaqMUSTVW/Ej10aP4iMGGDbR4iIYEtLiqK9o+OITiAiKc3lhpar++yVZ/+4mbFI8e6Wwx/cNNgaDLUrLn+T/o="
|
1704.05476
|
Nilanjan De Dr.
|
Nilanjan De
|
Computing Reformulated First Zagreb Index of Some Chemical Graphs as an
Application of Generalized Hierarchical Product of Graphs
|
12 pages
| null | null | null |
cs.DM
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
The generalized hierarchical product of graphs was introduced by L.
Barri\'ere et al in 2009. In this paper, reformulated first Zagreb index of
generalized hierarchical product of two connected graphs and hence as a special
case cluster product of graphs are obtained. Finally using the derived results
the reformulated first Zagreb index of some chemically important graphs such as
square comb lattice, hexagonal chain, molecular graph of truncated cube, dimer
fullerene, zig-zag polyhex nanotube and dicentric dendrimers are computed.
|
[
{
"version": "v1",
"created": "Tue, 18 Apr 2017 18:02:39 GMT"
}
] | 2017-04-20T00:00:00
|
[
[
"De",
"Nilanjan",
""
]
] |
"KPksbgquD3rYWVN/X2slcyRtUVa0Q9trVFEbb/3+/13VdA9tUCRvHE6FeW3VQpRzkJzxgzmcnA+GKXypTE04cp2WZtQYdVaGHbwAbJYEdmyLeY2AEsEQJogao8IJBIu4rSe3P8bzBf4SRJZpZiX2m8Xa3Cl+XqNyXbJUvh8b7j4="
|
2004.01989
|
Manuel Lainz Valcazar
|
Alexandre Anahory Simoes, Manuel de Le\'on, Manuel Lainz Valc\'azar,
David Mart\'in de Diego
|
Contact geometry for simple thermodynamical systems with friction
| null | null | null | null |
math-ph math.MP
|
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
|
Using contact geometry we give a new characterization of a simple but
important class of thermodynamical systems which naturally satisfy the first
law of thermodynamics (total energy preservation) and the second law (increase
of entropy). We completely clarify its qualitative dynamics, the underlying
geometrical structures and we show how to use discrete gradient methods.
|
[
{
"version": "v1",
"created": "Sat, 4 Apr 2020 18:05:39 GMT"
}
] | 2020-04-07T00:00:00
|
[
[
"Simoes",
"Alexandre Anahory",
""
],
[
"de León",
"Manuel",
""
],
[
"Valcázar",
"Manuel Lainz",
""
],
[
"de Diego",
"David Martín",
""
]
] |
"fHkIfoq3OV5YEFO/fVn5cVdJRSS1h7NdREcwybc/5V1JUEs9IwJMXu6Fu+Txw7Xjw4/Ri1GM2E8NqHyhcUtVRL2yoeQT9xaMGJEAePFgJFyFLg8AWIOpKamorFoIBjiphLOl/uLjgO3yF9/5oqeWC8faXK523aKwaLfUHjYbnj4="
|
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