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what are the most important conditions and processes governing the growth of stellar - origin compact objects? the identification of compact object type as either black hole ( bh ) or neutron star ( ns ) is fundamental to understanding their formation and evolution. to date, time - domain determination of compact objec... | arxiv:1903.09858 |
an orthogonal representation of a graph is an assignment of nonzero real vectors to its vertices such that distinct non - adjacent vertices are assigned to orthogonal vectors. we prove general lower bounds on the dimension of orthogonal representations of graphs using the borsuk - ulam theorem from algebraic topology. ... | arxiv:1811.11488 |
between 19 and 54 gpa, potassium has a complex composite incommensurate host - guest structure which undergoes two intraphase transitions over this pressure range. the temperature dependence of these host - guest phases is further complicated by the onset of an order - disorder transition in their guest chains. here, w... | arxiv:1504.02895 |
we calculate the energy spectrum of a confining flux tube that is closed around a spatial torus, as a function of its length l. we do so for various su ( n ) gauge theories in 3 + 1 dimensions, and for various values of spin, parity and longitudinal momentum. we are able to present usefully accurate results for about 2... | arxiv:1007.4720 |
this paper is the first in a series presenting a sample of 29 late - type dwarf galaxies, observed with the westerbork synthesis radio telescope ( wsrt ) in the 21 - cm line of neutral atomic hydrogen ( hi ). the sample itself, the hi content of and the hi distribution in the sample galaxies are briefly discussed. four... | arxiv:astro-ph/0203128 |
landau ' s theory of electron motion in stationary magnetic fields is extended to the inclusion of bouncing along the field between mirror points in an inhomogeneous field. the problem can be treated perturbation theoretically. as expected, bouncing is quantized, causes a weak shift in landau levels, reduces parallel d... | arxiv:1305.1000 |
the need for data preservation and reproducible research is widely recognized in the scientific community. yet, researchers often struggle to find the motivation to contribute to data repositories and to use tools that foster reproducibility. in this paper, we explore possible uses of gamification to support reproducib... | arxiv:1903.02446 |
the reconfiguration graph of the $ k $ - colourings, denoted $ \ mathcal { r } _ k ( g ) $, is the graph whose vertices are the $ k $ - colourings of $ g $ and two colourings are adjacent in $ \ mathcal { r } _ k ( g ) $ if they differ in colour on exactly one vertex. in this paper, we investigate the connectivity and ... | arxiv:2206.09268 |
in this paper, we are concerned with hypersurfaces in $ h ^ n \ times r $ with constant r - mean curvature, to be called $ h _ r $ - hypersurfaces. we construct examples of complete $ h _ r $ - hypersurfaces which are invariant by parabolic screw motion or by rotation. we prove that there is a unique rotational strictl... | arxiv:1402.6886 |
microrobots show great potential in biomedical applications such as drug delivery and cell manipulations. however, current microrobots are mostly fabricated as a single entity and type and the tasks they can perform are limited. in this paper, modular microrobots, with an overall size of 120 $ \ mu $ m $ \ times $ 200 ... | arxiv:2311.13809 |
we study the pointwise ( in the space and time variables ) behavior of the fokker - planck equation with flat confinement. the solution has very clear description in the $ xt - $ plane, including large time behavior, initial layer and asymptotic behavior. moreover, the structure of the solution highly depends on the po... | arxiv:1706.07557 |
as immersive technologies enable unique, multimodal interaction methods, developers must also use tailored methods to support user accessibility, distinct from traditional software practices. therefore, we interviewed 25 industry extended reality ( xr ) developers, including freelancers, startups, midsize, and big tech... | arxiv:2412.16321 |
we report on the investigation of a very high energy ( vhe ), galactic gamma - ray source recently discovered at > 50gev using the large area telescope ( lat ) on board the fermi gamma - ray space telescope. this object, 2fhl j1703. 4 - 4145, displays a very hard > 50gev spectrum with a photon index ~ 1. 2 in the 2fhl ... | arxiv:2006.08757 |
the difficulty that the probabilities infinitely increase with time as time is long enough in time - dependent perturbation theory for some quantum systems is resolved by means of simply transforming the perturbative series into natural exponential functions of the re - summed perturbative series. three exactly solvabl... | arxiv:1605.00741 |
bankruptcy is a legal procedure that claims a person or organization as a debtor. it is essential to ascertain the risk of bankruptcy at initial stages to prevent financial losses. in this perspective, different soft computing techniques can be employed to ascertain bankruptcy. this study proposes a bankruptcy predicti... | arxiv:1502.03601 |
- time chatting in a group setting. participants can raise their hands, answer polls, or take tests. students can whiteboard and screencast when given rights by the instructor, who sets permission levels for text notes, microphone rights, and mouse control. a virtual classroom provides an opportunity for students to re... | https://en.wikipedia.org/wiki/Educational_technology |
i discuss the absorption and dispersion of pions in hot matter. a two - loop calculation in the framework of chiral perturbation theory is presented and its result is compactly written in terms of the two - and three - particle forward $ \ pi \ pi $ scattering amplitudes. at modest temperatures, $ t \ le 100 $ mev, the... | arxiv:hep-ph/9306275 |
we present results for pseudoscalar decay constants of heavy - light mesons using both quenched and n _ f = 2 dynamical fermion configurations. a variety of fermion actions is investigated : wilson, nonperturbative clover, and fat - link clover. for heavy quarks the fermilab formalism is applied. in the quenched approx... | arxiv:hep-lat/0011029 |
we provide a new proof of hua ' s result that every sufficiently large integer n \ equiv 5 ( mod \, 24 ) can be written as the sum of the five prime squares. hua ' s original proof relies on the circle method and uses results from the theory of $ l $ - functions. here, we present a proof based on the transference princ... | arxiv:1711.08578 |
we report the mechanism of cleavage crack deviation at grain boundaries. a fracture mechanics based model has been developed to combine the effect of tilt and twist angles between cleavage planes on the reduction in normalized energy release rate. furthermore, electron back - scatter diffraction analysis on cleavage fr... | arxiv:1902.04252 |
in this paper we propose a hamiltonian of the n - level system by making use of generalized pauli matrices. | arxiv:quant-ph/0302050 |
weak neutral current interactions with charged leptons have offered unique opportunities to study novel aspects of hadronic structure and search for physics beyond the standard model. these studies in the medium energy community have been primarily through parity - violating processes with electron beams, but with the ... | arxiv:1712.05314 |
we investigate the strong gravitational lensing in a squashed kaluza - klein black hole immersed in the g \ " { o } del universe with global rotation. our result show that the strong gravitational lensing in the squashed kaluza - klein g \ " { o } del black hole spacetime has some distinct behaviors from that in the ke... | arxiv:1102.0086 |
a massless up quark is an intriguing solution to the strong cp problem. we discuss how lattice computations can be used in conjunction with chiral perturbation theory to address the consistency of $ m _ u = 0 $ with the observed hadron spectrum and interactions. it is not necessary to simulate very light quarks - three... | arxiv:hep-lat/9909091 |
since the invention of word2vec, the skip - gram model has significantly advanced the research of network embedding, such as the recent emergence of the deepwalk, line, pte, and node2vec approaches. in this work, we show that all of the aforementioned models with negative sampling can be unified into the matrix factori... | arxiv:1710.02971 |
we study the charge transport across a band - tuned metal - insulator transition in two dimensions. for high temperatures $ t $ and chemical potentials $ \ mu $ far from the transition point, conduction is ballistic and the resistance $ r ( t ) $ verifies a simple one - parameter scaling relation. here, we explore the ... | arxiv:2501.17616 |
we present a model treating the kinetics of adsorption of soluble surface - active molecules at the interface between an aqueous solution and another fluid phase. the model accounts for both the diffusive transport inside the solution and the kinetics taking place at the interface using a free - energy formulation. in ... | arxiv:cond-mat/9803320 |
carbon fiber composite can be a potential candidate for replacing metal - based battery enclosures of current electric vehicles ( e. v. s ) owing to its better strength - to - weight ratio and corrosion resistance. however, the strength of carbon fiber - based structures depends on several parameters that should be car... | arxiv:2309.00637 |
we compute the effective lagrangian of static gravitational fields interacting with thermal fields. our approach employs the usual imaginary time formalism as well as the equivalence between the static and space - time independent external gravitational fields. this allows to obtain a closed form expression for the the... | arxiv:1203.1670 |
with the needs of science and business, data sharing and re - use has become an intensive activity for various areas. in many cases, governance imposes rules concerning data use, but there is no existing computational technique to help data - users comply with such rules. we argue that intelligent systems can be used t... | arxiv:1911.08439 |
physical interactions can often help reveal information that is not readily apparent. for example, we may tug at a table leg to evaluate whether it is built well, or turn a water bottle upside down to check that it is watertight. we propose to train robots to acquire such interactive behaviors automatically, for the pu... | arxiv:2212.08961 |
we report the discovery of a bright ( j = 13. 83 $ \ pm $ 0. 03 ) methane brown dwarf, or t dwarf, by the two micron all sky survey. this object, 2massi j0559191 - 140448, is the first brown dwarf identified by the newly commissioned cormass instrument mounted on the palomar 60 - inch telescope. near - infrared spectra... | arxiv:astro-ph/0004239 |
we consider finite macroscopic systems, i. e., systems of large but finite degrees of freedom, which we believe are poorly understood as compared with small systems and infinite systems. we focus on pure states that do not have the ` cluster property. ' such a pure state is entangled macroscopically, and is quite anoma... | arxiv:quant-ph/0311176 |
for the problems indicated in the title, a further development of a new approach ( different from those applied before ) is given. a basic problem under consideration arises in viscous incompressible fluid dynamics and describes self - similar solutions to the boundary layer equation for a stream function with zero pre... | arxiv:1804.06301 |
articulated object manipulation poses a unique challenge compared to rigid object manipulation as the object itself represents a dynamic environment. in this work, we present a novel rl - based pipeline equipped with variable impedance control and motion adaptation leveraging observation history for generalizable artic... | arxiv:2502.14457 |
kink oscillations of coronal loops, i. e., standing kink waves, is one of the most studied dynamic phenomena in the solar corona. the oscillations are excited by impulsive energy releases, such as low coronal eruptions. typical periods of the oscillations are from a few to several minutes, and are found to increase lin... | arxiv:2109.11220 |
this paper introduces bayesian frameworks for tackling various aspects of multi - criteria decision - making ( mcdm ) problems, leveraging a probabilistic interpretation of mcdm methods and challenges. by harnessing the flexibility of bayesian models, the proposed frameworks offer statistically elegant solutions to key... | arxiv:2208.13390 |
the central molecular zone ( cmz ), usually referring to the inner 500 pc of the galaxy, contains a dozen of massive ( $ \ sim10 ^ 5 $ $ m _ \ odot $ ) molecular clouds. are these clouds going to actively form stars like sgr b2? how are they affected by the extreme physical conditions in the cmz, such as strong turbule... | arxiv:1609.08240 |
factorization of large dense matrices are ubiquitous in engineering and data science applications, e. g. preconditioners for iterative boundary integral solvers, frontal matrices in sparse multifrontal solvers, and computing the determinant of covariance matrices. hss and $ \ mathcal { h } ^ 2 $ - matrices are hierarch... | arxiv:2208.10907 |
with respect to spatial overlap, cnn - based segmentation of short axis cardiovascular magnetic resonance ( cmr ) images has achieved a level of performance consistent with inter observer variation. however, conventional training procedures frequently depend on pixel - wise loss functions, limiting optimisation with re... | arxiv:2008.09585 |
we try to obtain born ' s principle as a result of a subquantum heat death, using classical $ { \ cal h } $ - theorem and the definition of a proper quantum $ { \ cal h } $ - theorem, within the framwork of bohm ' s theory. we shall show the possibility of solving the problem of action - reaction asymmetry present in b... | arxiv:quant-ph/9808015 |
we report the firm discovery of solar - like oscillations in a giant star. we monitored the star xi hya ( g7iii ) continuously during one month with the coralie spectrograph attached to the 1. 2m swiss euler telescope. the 433 high - precision radial - velocity measurements clearly reveal multiple oscillation frequenci... | arxiv:astro-ph/0209325 |
after defining reduced minimum braid word and criteria for a braid family representative, different braid family representatives are derived, and a correspondence between them and families of knots and links given in conway notation is established. | arxiv:math/0504479 |
we point out the $ cp $ asymmetry in the chain decay of $ \ lambda _ c ^ + \ to \ delta ^ + k ( t ) ( \ to \ pi ^ + \ pi ^ - ) $ is determined by the branching fractions of $ \ lambda ^ + _ c \ to \ delta ^ { + + } k ^ - $, $ \ lambda ^ + _ c \ to \ delta ^ { + } k ^ 0 _ { s, l } $ and $ \ lambda ^ + _ c \ to \ delta ^... | arxiv:2204.04116 |
we study the problem of existence of finite energy monopole solutions in the weinberg - salam model starting with a most general ansatz for static axially - symmetric electroweak magnetic fields. the ansatz includes an explicit construction of field configurations with various topologies described by the monopole and h... | arxiv:1311.7567 |
we report the experimental findings of formation and motion of heap in granular materials in an inclined and vertically vibrated container. we show experimentally how the transport velocity of heap up container is related to the driving acceleration as well as the driving frequency of exciter. an analogous experiment w... | arxiv:cond-mat/0511693 |
current vertex correction ( cvc ), the back - flow - like correction to the current, comes from conservation laws, and the cvc due to electron correlation contains information about many - body effects. however, it has been little understood how the cvc due to electron correlation affects the charge transports of a cor... | arxiv:1505.05274 |
we determine the detailed structure of parabolic subgroups of orthogonal groups over $ \ mathbb { z } $, and deduce the precise form of canonical boundary components in toroidal compactifications of orthogonal shimura varieties. | arxiv:1902.08264 |
in this note we examine certain classes of solutions of iia theory without sources, of the form ads $ _ 2 \ times { \ cal m } ^ { ( 1 ) } \ times \ dots \ times { \ cal m } ^ { ( n ) } $, where $ { \ cal m } ^ { ( i ) } $ are riemannian spaces. we show that large hierarchies of curvatures can be obtained between the di... | arxiv:2004.07582 |
the riesz potential $ f _ s ( r ) = r ^ { - s } $ is known to be an important building block of many interactions, including lennard - jones type potentials $ f _ { n, m } ^ { \ rm { lj } } ( r ) : = a r ^ { - n } - b r ^ { - m } $, $ n > m $ that are widely used in molecular simulations. in this paper, we investigate ... | arxiv:2107.14020 |
we review the standard model in a form conducive to formulating its possible short distance extensions. this depends on the value of the higgs mass, the only unknown parameter of the model. we suggest methods to reproduce many of the small numbers in the model in terms of scale ratios, applying see - saw like ideas to ... | arxiv:hep-ph/9412387 |
we demonstrate electrical injection and detection of spin - polarized electrons in silicon ( si ) using epitaxially grown fe _ 3si / si schottky - tunnel - barrier contacts. by an insertion of a delta - doped n ^ + - si layer ( ~ 10 ^ 19 cm ^ - 3 ) near the interface between a ferromagnetic fe _ 3si / si contact and a ... | arxiv:0904.2980 |
this paper is a continuation of " quantization of lie bialgebras, i " ( q - alg / 9606005 ). we show that the quantization procedure defined in " quantization of lie bialgebras, i " is given by universal acyclic formulas and defines a functor from the category of lie bialgebras to the category of quantized universal en... | arxiv:q-alg/9701038 |
the goal of this article is to display a $ q $ - polynomial structure for the attenuated space poset $ \ mathcal a _ q ( n, m ) $. the poset $ \ mathcal a _ q ( n, m ) $ is briefly described as follows. start with an $ ( n + m ) $ - dimensional vector space $ h $ over a finite field with $ q $ elements. fix an $ m $ - ... | arxiv:2307.07833 |
magnetic topological insulators ( mti ) constitute a novel class of materials where the topologically protected band structure coexists with long - range ferromagnetic order, which can lead to the breaking of time - reversal symmetry ( trs ), introducing a bandgap in the dirac cone - shaped topological surface state ( ... | arxiv:2302.01684 |
high - capacity image steganography, aimed at concealing a secret image in a cover image, is a technique to preserve sensitive data, e. g., faces and fingerprints. previous methods focus on the security during transmission and subsequently run a risk of privacy leakage after the restoration of secret images at the rece... | arxiv:2107.05819 |
control of network systems with uncertain local dynamics has remained an open problem for a long time. in this paper, a distributed minimax adaptive control algorithm is proposed for such networks whose local dynamics has an uncertain parameter possibly taking finite number of values. to hedge against this uncertainty,... | arxiv:2310.17364 |
the problem of computing sum of sources over a multiple access channel ( mac ) is considered. building on the technique of linear computation coding ( lcc ) proposed by nazer and gastpar [ 2007 ], we employ the ensemble of nested coset codes to derive a new set of sufficient conditions for computing the sum of sources ... | arxiv:1301.5684 |
object detection has been a challenging task in computer vision. although significant progress has been made in object detection with deep neural networks, the attention mechanism is far from development. in this paper, we propose the hybrid attention mechanism for single - stage object detection. first, we present the... | arxiv:1904.11141 |
an effective, reliable and time saving numerical method with using of the pruefer transformation is proposed to calculate eigenvalues of chandrasekhar - page angular equations. | arxiv:1605.07450 |
symmetries are prevalent in deep learning and can significantly influence the learning dynamics of neural networks. in this paper, we examine how exponential symmetries - - a broad subclass of continuous symmetries present in the model architecture or loss function - - interplay with stochastic gradient descent ( sgd )... | arxiv:2402.07193 |
to address the limitations of current hate speech detection models, we introduce \ textsf { sghatecheck }, a novel framework designed for the linguistic and cultural context of singapore and southeast asia. it extends the functional testing approach of hatecheck and mhc, employing large language models for translation ... | arxiv:2405.01842 |
we generalize the work of deser and levin on the unified description of hawking radiation and unruh effect to general stationary motions in spherically symmetric black holes. we have also matched the chemical potential term of the thermal spectrum of the two sides for uncharged black holes. | arxiv:gr-qc/0409107 |
we report the results of $ easycritics $, a fully automated algorithm for the efficient search of strong - lensing ( sl ) regions in wide - field surveys, applied to the canada - france - hawaii telescope lensing survey ( cfhtlens ). by using only the photometric information of the brightest elliptical galaxies distrib... | arxiv:1807.03793 |
a traditional stochastic program under a finite population typically seeks to optimize efficiency by maximizing the expected profits or minimizing the expected costs, subject to a set of constraints. however, implementing such optimization - based decisions can have varying impacts on individuals, and when assessed usi... | arxiv:2402.01872 |
we consider mean - field control problems in discrete time with discounted reward, infinite time horizon and compact state and action space. the existence of optimal policies is shown and the limiting mean - field problem is derived when the number of individuals tends to infinity. moreover, we consider the average rew... | arxiv:2106.08755 |
d0 has used w - > e nu events produced in association with a high $ p _ t $ jet to examine the effects of strong radiative corrections. we have compared the primary jet pseudorapidity distribution, as a function of reconstructed w rapidity to leading order ( lo ) and next to leading order ( nlo ) qcd monte carlos, as w... | arxiv:hep-ex/9412002 |
recently an operator space version of type and cotype, namely type $ ( p, h ) $ and cotype $ ( q, h ) $ of operator spaces for $ 1 \ leq p \ leq 2 \ leq q \ leq \ infty $ and a subquadratic and homogeneous hilbetian operator space $ h $ were introduced and investigated by the author. in this paper we define weak type $... | arxiv:math/0502337 |
neutron electric dipole moment ( nedm ), a generic feature of cp - violation, is predicted to be very small in the standard model, but can be much larger in most extensions of the model. in this talk, i will discuss the classification of the cp violating operators up to dimension 6 that can give rise to nedm, and then ... | arxiv:1403.2445 |
the term { \ em complexity } is used informally both as a quality and as a quantity. as a quality, complexity has something to do with our ability to understand a system or object - - we understand simple systems, but not complex ones. on another level, { \ em complexity } is used as a quantity, when we talk about some... | arxiv:0805.0685 |
we present a theoretical study of heat transport in electrically insulating ferromagnetic wires containing a domain wall. in the regime of validity of continuum micromagnetism a domain wall is found to have no effect on the heat conductance. however, spin waves are found to be reflected by domain walls with widths of a... | arxiv:1204.4008 |
the study of shell - type supernova remnants is a key science focus for the veritas tev telescope array. supernova remnants ( snrs ) are widely considered to be the strongest candidate for the source of cosmic rays below the knee around 10 ^ 15 ev. this presentation will highlight new veritas results including new meas... | arxiv:0907.5018 |
using chandra acis - s, we have obtained imaging xray spectrophotometry of the pluto system in support of the new horizons flyby on 14 july 2015. 174 ksec of observations were obtained on 4 visits in feb 2014 to aug 2015. we measured a net signal of 6. 8 counts and a noise level of 1. 2 counts in a comoving 11 x 11 pix... | arxiv:1610.07963 |
in the modern world, the development of artificial intelligence ( ai ) has contributed to improvements in various areas, including automation, computer vision, fraud detection, and more. ai can be leveraged to enhance the efficiency of autonomous smart traffic management ( astm ) systems and reduce traffic congestion r... | arxiv:2410.10929 |
in the last decades, light detection and ranging ( lidar ) technology has been extensively explored as a robust alternative for self - localization and mapping. these approaches typically state ego - motion estimation as a non - linear optimization problem dependent on the correspondences established between the curren... | arxiv:2111.03393 |
recurrence plot ( rp ) and recurrence quantification analysis rqa ) are signal numerical analysis methodologies able to work with non linear dynamical systems and non stationarity. moreover they well evidence changes in the states of a dynamical system. it is shown that rp and rqa detect the critical regime in financia... | arxiv:physics/0505170 |
object - oriented data analysis is a fascinating and evolving field in modern statistical science, with the potential to make significant contributions to biomedical applications. this statistical framework facilitates the development of new methods to analyze complex data objects that capture more information than tra... | arxiv:2302.07692 |
we propose a novel linearization of a constituent tree, together with a new locally normalized model. for each split point in a sentence, our model computes the normalizer on all spans ending with that split point, and then predicts a tree span from them. compared with global models, our model is fast and parallelizabl... | arxiv:2004.14704 |
a uniaxial strain applied to graphene - like materials moves the dirac nodes along the boundary of the brillouin zone. an extreme case is the merging of the dirac node positions to a single degenerate spectral node which gives rise to a new topological phase. then isotropic dirac nodes are replaced by a node with a lin... | arxiv:1712.08529 |
smb6 exhibits intermediate valence in the ground state and unusual behaviour at low temperatures. the resistivity and the hall effect cannot be explained either by conventional sf - hybridization or by hopping transport in an impurity band. at least three different energy scales determine three temperature regimes of e... | arxiv:cond-mat/9911266 |
a foundational requirement of a deployed ml model is to generalize to data drawn from a testing distribution that is different from training. a popular solution to this problem is to adapt a pre - trained model to novel domains using only unlabeled data. in this paper, we focus on a challenging variant of this problem,... | arxiv:2207.04185 |
ascribing the large su ( 3 ) violations in the cabibbo forbidden decays of neutral d mesons to the final state interactions, one gets large strong phase differences, necessary for substantial direct cp violation. while the absolute value of the cp violating asymmetries depend on the uncertain strength of the penguin co... | arxiv:1305.7343 |
in a friedmann - robertson - walker ( frw ) space - time background we study the classical cosmological models in the context of recently proposed theory of nonlinear minimal massive bigravity. we show that in the presence of perfect fluid the classical field equations acquire contribution from the massive graviton as ... | arxiv:1512.03333 |
we present analytical results for the distribution of cover times of random walks ( rws ) on random regular graphs consisting of $ n $ nodes of degree $ c $ ( $ c \ ge 3 $ ). starting from a random initial node at time $ t = 1 $, at each time step $ t \ ge 2 $ an rw hops into a random neighbor of its previous node. in ... | arxiv:2110.13592 |
the quasiparticle scattering interference phenomenon characterized by the peaks in the local density of states is studied within the kinetic energy driven superconducting mechanism in the presence of a single impurity. by calculation of the fourier transformed ratio of the local density of states at opposite energy, it... | arxiv:1001.3232 |
near or less than 10 % nb substitution on the ti site in perovskite srtio $ _ 3 $ results in metallic behavior, in contrast to what is seen in batio $ _ 3 $. given the nearly identical structure and electron counts of the two materials, the distinct ground states for low substitution have been a long - standing puzzle.... | arxiv:0808.1308 |
within the framework of the color flux - tube model with a multibody confinement potential, we systematically investigate the hidden charmed states observed in recent years. it can be found that most of them can be described as the compact tetraquark states $ [ cq ] [ \ bar { c } \ bar { q } ] $ ( $ q = u, d $ and $ s ... | arxiv:1801.00164 |
in this research paper, we investigate into a paper named " a deep reinforcement learning framework for the financial portfolio management problem " [ arxiv : 1706. 10059 ]. it is a portfolio management problem which is solved by deep learning techniques. the original paper proposes a financial - model - free reinforce... | arxiv:2409.08426 |
the angular distribution of the emitted electrons, following the two - - photon ionization of the hydrogen - - like ions, is studied within the framework of second order perturbation theory \ textit { and } the dirac equation. using a density matrix approach, we have investigated the effects which arise from the polari... | arxiv:physics/0312111 |
the h. e. s. s. galactic plane survey has detected very - high - energy ( vhe ) gamma - ray emission from 78 sources in the milky way. these sources belong to different object classes ( pulsar wind nebulae, supernova remnants or binary systems ) and some of these sources remain unidentified. the gamma - ray emission of... | arxiv:2111.14815 |
we use a controlled laboratory experiment to study the causal impact of income decreases within a time period on redistribution decisions at the end of that period, in an environment where we keep fixed the sum of incomes over the period. first, we investigate the effect of a negative income trend ( intra - personal de... | arxiv:2107.02888 |
we study the homotopy type of spaces of commuting elements in connected nilpotent lie groups, via almost commuting elements in their lie algebras. we give a necessary and sufficient condition on the fundamental group of such a lie group $ g $ to ensure $ \ mathrm { hom } ( \ mathbb { z } ^ k, g ) $ is path - connected.... | arxiv:2405.09652 |
we introduce a new set of consistent measures of risks, in terms of the semi - invariants of pdf ' s, such that the centered moments and the cumulants of the portfolio distribution of returns that put more emphasis on the tail the distributions. we derive generalized efficient frontiers, based on these novel measures o... | arxiv:cond-mat/0207475 |
deep learning has improved performance on many natural language processing ( nlp ) tasks individually. however, general nlp models cannot emerge within a paradigm that focuses on the particularities of a single metric, dataset, and task. we introduce the natural language decathlon ( decanlp ), a challenge that spans te... | arxiv:1806.08730 |
vertical federated learning ( vfl ) is an effective paradigm of training the emerging cross - organizational ( e. g., different corporations, companies and organizations ) collaborative learning with privacy preserving. stochastic gradient descent ( sgd ) methods are the popular choices for training vfl models because ... | arxiv:2109.12519 |
in this paper we continue the investigation, within the context of the dijkgraaf - vafa programme, of seiberg duality in matrix models as initiated in hep - th / 0211202, by allowing degenerate mass deformations. in this case, there are some massless fields which remain and the theory has a moduli space. with this illu... | arxiv:hep-th/0211234 |
there are many observational evidences for the existence of massive compact condensations in the range $ 10 ^ 6 - 10 ^ { 10 } m _ \ odot $ at the core of various galaxies. at present such condensations are commonly interpreted as black holes ( bhs ). however, we point out that while such black hole candidates ( bhcs ) ... | arxiv:astro-ph/0205261 |
in this paper, we consider the problem of reconstructing piecewise smooth functions to high accuracy from nonuniform samples of their fourier transform. we use the framework of nonuniform generalized sampling ( nugs ) to do this, and to ensure high accuracy we employ reconstruction spaces consisting of splines or ( pie... | arxiv:1410.0088 |
correlated electrons in transition metal oxides ( tmos ) exhibit a variety of emergent phases. when tmos are confined to a single - atomic - layer thickness, experiments so far have shown that they usually lose diverse properties and become insulators. in an attempt to extend the range of electronic phases of the singl... | arxiv:2109.11090 |
in this work is presented a weakened version of the left exact preradicals : the prehereditary preradicals. also is presented a weakened version of the idempotent preradicals : the essentially idempotent preradicals. these new classes of prerradicals are studied under the lattice theory. each class serves to generalize... | arxiv:1511.01222 |
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