title stringlengths 7 239 | abstract stringlengths 7 2.76k | cs int64 0 1 | phy int64 0 1 | math int64 0 1 | stat int64 0 1 | quantitative biology int64 0 1 | quantitative finance int64 0 1 |
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Integrating electricity markets: Impacts of increasing trade on prices and emissions in the western United States | This paper analyzes the market impacts of expanding California's centralized
electricity market across the western United States and provides the first
statistical assessment of this issue. Using market data from 2015-2018, I
estimate the short-term effects of increasing regional electricity trade
between California ... | 0 | 0 | 0 | 0 | 0 | 1 |
Impact of Continuous Integration on Code Reviews | Peer code review and continuous integration often interleave with each other
in the modern software quality management. Although several studies investigate
how non-technical factors (e.g., reviewer workload), developer participation
and even patch size affect the code review process, the impact of continuous
integra... | 1 | 0 | 0 | 0 | 0 | 0 |
New Algorithms for Unordered Tree Inclusion | The tree inclusion problem is, given two node-labeled trees $P$ and $T$ (the
"pattern tree" and the "text tree"), to locate every minimal subtree in $T$ (if
any) that can be obtained by applying a sequence of node insertion operations
to $P$. The ordered tree inclusion problem is known to be solvable in
polynomial ti... | 1 | 0 | 0 | 0 | 0 | 0 |
Learning to Price with Reference Effects | As a firm varies the price of a product, consumers exhibit reference effects,
making purchase decisions based not only on the prevailing price but also the
product's price history. We consider the problem of learning such behavioral
patterns as a monopolist releases, markets, and prices products. This context
calls f... | 1 | 0 | 0 | 0 | 0 | 0 |
Inverse Reinforce Learning with Nonparametric Behavior Clustering | Inverse Reinforcement Learning (IRL) is the task of learning a single reward
function given a Markov Decision Process (MDP) without defining the reward
function, and a set of demonstrations generated by humans/experts. However, in
practice, it may be unreasonable to assume that human behaviors can be
explained by one... | 1 | 0 | 0 | 0 | 0 | 0 |
$z^\circ$-ideals in intermediate rings of ordered field valued continuous functions | A proper ideal $I$ in a commutative ring with unity is called a
$z^\circ$-ideal if for each $a$ in $I$, the intersection of all minimal prime
ideals in $R$ which contain $a$ is contained in $I$. For any totally ordered
field $F$ and a completely $F$-regular topological space $X$, let $C(X,F)$ be
the ring of all $F$-v... | 0 | 0 | 1 | 0 | 0 | 0 |
Mosquito Detection with Neural Networks: The Buzz of Deep Learning | Many real-world time-series analysis problems are characterised by scarce
data. Solutions typically rely on hand-crafted features extracted from the time
or frequency domain allied with classification or regression engines which
condition on this (often low-dimensional) feature vector. The huge advances
enjoyed by ma... | 1 | 0 | 0 | 1 | 0 | 0 |
The inseparability of sampling and time and its influence on attempts to unify the molecular and fossil records | The two major approaches to studying macroevolution in deep time are the
fossil record and reconstructed relationships among extant taxa from molecular
data. Results based on one approach sometimes conflict with those based on the
other, with inconsistencies often attributed to inherent flaws of one (or the
other) da... | 0 | 0 | 0 | 0 | 1 | 0 |
The imprints of bars on the vertical stellar population gradients of galactic bulges | This is the second paper of a series aimed to study the stellar kinematics
and population properties of bulges in highly-inclined barred galaxies. In this
work, we carry out a detailed analysis of the stellar age, metallicity and
[Mg/Fe] of 28 highly-inclined ($i > 65^{o}$) disc galaxies, from S0 to S(B)c,
observed w... | 0 | 1 | 0 | 0 | 0 | 0 |
A structure-preserving split finite element discretization of the split 1D wave equations | We introduce a new finite element (FE) discretization framework applicable
for covariant split equations. The introduction of additional differential
forms (DF) that form pairs with the original ones permits the splitting of the
equations into topological momentum and continuity equations and
metric-dependent closure... | 0 | 0 | 1 | 0 | 0 | 0 |
Quantum quench dynamics | Quench dynamics is an active area of study encompassing condensed matter
physics and quantum information, with applications to cold-atomic gases and
pump-probe spectroscopy of materials. Recent theoretical progress in studying
quantum quenches is reviewed. Quenches in interacting one dimensional systems
as well as sy... | 0 | 1 | 0 | 0 | 0 | 0 |
R&D On Beam Injection and Bunching Schemes In The Fermilab Booster | Fermilab is committed to upgrade its accelerator complex to support HEP
experiments at the intensity frontier. The ongoing Proton Improvement Plan
(PIP) enables us to reach 700 kW beam power on the NuMI neutrino targets. By
the end of the next decade, the current 400 MeV normal conducting LINAC will be
replaced by an... | 0 | 1 | 0 | 0 | 0 | 0 |
Deep Structured Generative Models | Deep generative models have shown promising results in generating realistic
images, but it is still non-trivial to generate images with complicated
structures. The main reason is that most of the current generative models fail
to explore the structures in the images including spatial layout and semantic
relations bet... | 0 | 0 | 0 | 1 | 0 | 0 |
Machine Learning Techniques for Stellar Light Curve Classification | We apply machine learning techniques in an attempt to predict and classify
stellar properties from noisy and sparse time series data. We preprocessed over
94 GB of Kepler light curves from MAST to classify according to ten distinct
physical properties using both representation learning and feature engineering
approac... | 0 | 1 | 0 | 0 | 0 | 0 |
Frequency measurement of the clock transition of an indium ion sympathetically-cooled in a linear trap | We report frequency measurement of the clock transition in an 115In+ ion
sympathetically-cooled with Ca+ ions in a linear rf trap. The Ca+ ions are used
as a probe of the external electromagnetic field and as the coolant for
preparing the cold In+. The frequency is determined to be 1 267 402 452 901
049.9 (6.9) Hz by... | 0 | 1 | 0 | 0 | 0 | 0 |
Sentence-level dialects identification in the greater China region | Identifying the different varieties of the same language is more challenging
than unrelated languages identification. In this paper, we propose an approach
to discriminate language varieties or dialects of Mandarin Chinese for the
Mainland China, Hong Kong, Taiwan, Macao, Malaysia and Singapore, a.k.a., the
Greater C... | 1 | 0 | 0 | 0 | 0 | 0 |
Measuring abstract reasoning in neural networks | Whether neural networks can learn abstract reasoning or whether they merely
rely on superficial statistics is a topic of recent debate. Here, we propose a
dataset and challenge designed to probe abstract reasoning, inspired by a
well-known human IQ test. To succeed at this challenge, models must cope with
various gen... | 0 | 0 | 0 | 1 | 0 | 0 |
On fractional powers of Bessel operators | This paper was published in the special issue of the Journal of Inequalities
and Special Functions dedicated to Professor Ivan Dimovski's contributions to
different fields of mathematics: transmutation theory, special functions,
integral transforms, function theory etc.
In this paper we study fractional powers of the... | 0 | 0 | 1 | 0 | 0 | 0 |
Small Telescope Exoplanet Transit Surveys: XO | The XO project aims at detecting transiting exoplanets around bright stars
from the ground using small telescopes. The original configuration of XO
(McCullough et al. 2005) has been changed and extended as described here. The
instrumental setup consists of three identical units located at different
sites, each compos... | 0 | 1 | 0 | 0 | 0 | 0 |
Divide-and-Conquer Reinforcement Learning | Standard model-free deep reinforcement learning (RL) algorithms sample a new
initial state for each trial, allowing them to optimize policies that can
perform well even in highly stochastic environments. However, problems that
exhibit considerable initial state variation typically produce high-variance
gradient estim... | 1 | 0 | 0 | 0 | 0 | 0 |
Whipping of electrified visco-capillary jets in airflows | An electrified visco-capillary jet shows different dynamic behavior, such as
cone forming, breakage into droplets, whipping and coiling, depending on the
considered parameter regime. The whipping instability that is of fundamental
importance for electrospinning has been approached by means of stability
analysis in pr... | 0 | 1 | 1 | 0 | 0 | 0 |
On Optimizing Feedback Interval for Temporally Correlated MIMO Channels With Transmit Beamforming And Finite-Rate Feedback | A receiver with perfect channel state information (CSI) in a point-to-point
multiple-input multiple-output (MIMO) channel can compute the transmit
beamforming vector that maximizes the transmission rate. For frequency-division
duplex, a transmitter is not able to estimate CSI directly and has to obtain a
quantized tr... | 1 | 0 | 0 | 0 | 0 | 0 |
RADNET: Radiologist Level Accuracy using Deep Learning for HEMORRHAGE detection in CT Scans | We describe a deep learning approach for automated brain hemorrhage detection
from computed tomography (CT) scans. Our model emulates the procedure followed
by radiologists to analyse a 3D CT scan in real-world. Similar to radiologists,
the model sifts through 2D cross-sectional slices while paying close attention
to... | 0 | 0 | 0 | 1 | 0 | 0 |
Median statistics estimates of Hubble and Newton's Constant | Robustness of any statistics depends upon the number of assumptions it makes
about the measured data. We point out the advantages of median statistics using
toy numerical experiments and demonstrate its robustness, when the number of
assumptions we can make about the data are limited. We then apply the median
statist... | 0 | 1 | 0 | 0 | 0 | 0 |
Re-parameterizing and reducing families of normal operators | We present a new proof of results of Kurdyka & Paunescu, and of Rainer, about
real-analytic multi-parameters generalizations of classical results by Rellich
and Kato about the reduction in families of univariate deformations of normal
operators over real or complex vector spaces of finite dimensions.
Given a real ana... | 0 | 0 | 1 | 0 | 0 | 0 |
Urban Scene Segmentation with Laser-Constrained CRFs | Robots typically possess sensors of different modalities, such as colour
cameras, inertial measurement units, and 3D laser scanners. Often, solving a
particular problem becomes easier when more than one modality is used. However,
while there are undeniable benefits to combine sensors of different modalities
the proce... | 1 | 0 | 0 | 0 | 0 | 0 |
The GAPS Programme with HARPS-N at TNG. XIII. The orbital obliquity of three close-in massive planets hosted by dwarf K-type stars: WASP-43, HAT-P-20 and Qatar-2 | In the framework of the GAPS project, we are conducting an observational
programme aimed at the determination of the orbital obliquity of known
transiting exoplanets. The targets are selected to probe the obliquity against
a wide range of stellar and planetary physical parameters. We exploit
high-precision radial vel... | 0 | 1 | 0 | 0 | 0 | 0 |
Probabilistic Program Equivalence for NetKAT | We tackle the problem of deciding whether two probabilistic programs are
equivalent in Probabilistic NetKAT, a formal language for specifying and
reasoning about the behavior of packet-switched networks. We show that the
problem is decidable for the history-free fragment of the language by
developing an effective dec... | 1 | 0 | 0 | 0 | 0 | 0 |
Spatially Adaptive Colocalization Analysis in Dual-Color Fluorescence Microscopy | Colocalization analysis aims to study complex spatial associations between
bio-molecules via optical imaging techniques. However, existing colocalization
analysis workflows only assess an average degree of colocalization within a
certain region of interest and ignore the unique and valuable spatial
information offere... | 0 | 0 | 0 | 1 | 0 | 0 |
On consistent vertex nomination schemes | Given a vertex of interest in a network $G_1$, the vertex nomination problem
seeks to find the corresponding vertex of interest (if it exists) in a second
network $G_2$. A vertex nomination scheme produces a list of the vertices in
$G_2$, ranked according to how likely they are judged to be the corresponding
vertex o... | 0 | 0 | 0 | 1 | 0 | 0 |
Converse passivity theorems | Passivity is an imperative concept and a widely utilized tool in the analysis
and control of interconnected systems. It naturally arises in the modelling of
physical systems involving passive elements and dynamics. While many theorems
on passivity are known in the theory of robust control, very few converse
passivity... | 0 | 0 | 1 | 0 | 0 | 0 |
Neural Networks retrieving Boolean patterns in a sea of Gaussian ones | Restricted Boltzmann Machines are key tools in Machine Learning and are
described by the energy function of bipartite spin-glasses. From a statistical
mechanical perspective, they share the same Gibbs measure of Hopfield networks
for associative memory. In this equivalence, weights in the former play as
patterns in t... | 0 | 1 | 0 | 0 | 0 | 0 |
Link colorings and the Goeritz matrix | We discuss the connection between colorings of a link diagram and the Goeritz
matrix.
| 0 | 0 | 1 | 0 | 0 | 0 |
Left-invariant Grauert tubes on SU(2) | Let M be a real analytic Riemannian manifold. An adapted complex structure on
TM is a complex structure on a neighborhood of the zero section such that the
leaves of the Riemann foliation are complex submanifolds. This structure is
called entire if it may be extended to the whole of TM. We call such manifolds
Grauert... | 0 | 0 | 1 | 0 | 0 | 0 |
Ricci flow on cone surfaces and a three-dimensional expanding soliton | The main objective of this thesis is the study of the evolution under the
Ricci flow of surfaces with singularities of cone type. A second objective,
emerged from the techniques we use, is the study of families of Ricci flow
solitons in dimension 2 and 3. The Ricci flow is an evolution equation for
Riemannian manifol... | 0 | 0 | 1 | 0 | 0 | 0 |
Do metric fluctuations affect the Higgs dynamics during inflation? | We show that the dynamics of the Higgs field during inflation is not affected
by metric fluctuations if the Higgs is an energetically subdominant light
spectator. For Standard Model parameters we find that couplings between Higgs
and metric fluctuations are suppressed by $\mathcal{O}(10^{-7})$. They are
negligible co... | 0 | 1 | 0 | 0 | 0 | 0 |
Quantum Origami: Transversal Gates for Quantum Computation and Measurement of Topological Order | In topology, a torus remains invariant under certain non-trivial
transformations known as modular transformations. In the context of
topologically ordered quantum states of matter, these transformations encode
the braiding statistics and fusion rules of emergent anyonic excitations and
thus serve as a diagnostic of t... | 0 | 1 | 0 | 0 | 0 | 0 |
A Decentralized Framework for Real-Time Energy Trading in Distribution Networks with Load and Generation Uncertainty | The proliferation of small-scale renewable generators and price-responsive
loads makes it a challenge for distribution network operators (DNOs) to
schedule the controllable loads of the load aggregators and the generation of
the generators in real-time. Additionally, the high computational burden and
violation of the... | 1 | 0 | 0 | 0 | 0 | 0 |
White Matter Network Architecture Guides Direct Electrical Stimulation Through Optimal State Transitions | Electrical brain stimulation is currently being investigated as a therapy for
neurological disease. However, opportunities to optimize such therapies are
challenged by the fact that the beneficial impact of focal stimulation on both
neighboring and distant regions is not well understood. Here, we use network
control ... | 0 | 0 | 0 | 0 | 1 | 0 |
Community detection in networks via nonlinear modularity eigenvectors | Revealing a community structure in a network or dataset is a central problem
arising in many scientific areas. The modularity function $Q$ is an established
measure quantifying the quality of a community, being identified as a set of
nodes having high modularity. In our terminology, a set of nodes with positive
modul... | 1 | 0 | 0 | 1 | 0 | 0 |
Scale-invariant unconstrained online learning | We consider a variant of online convex optimization in which both the
instances (input vectors) and the comparator (weight vector) are unconstrained.
We exploit a natural scale invariance symmetry in our unconstrained setting:
the predictions of the optimal comparator are invariant under any linear
transformation of ... | 1 | 0 | 0 | 1 | 0 | 0 |
Tuning Pairing Amplitude and Spin-Triplet Texture by Curving Superconducting Nanostructures | We investigate the nature of the superconducting state in curved
nanostructures with Rashba spin-orbit coupling (RSOC). In bent nanostructures
with inhomogeneous curvature we find a local enhancement or suppression of the
superconducting order parameter, with the effect that can be tailored by tuning
either the RSOC ... | 0 | 1 | 0 | 0 | 0 | 0 |
Thermal conductivity changes across a structural phase transition: the case of high-pressure silica | By means of first-principles calculations, we investigate the thermal
properties of silica as it evolves, under hydrostatic compression, from a
stishovite phase into a CaCl$_2$-type structure. We compute the thermal
conductivity tensor by solving the linearized Boltzmann transport equation
iteratively in a wide tempe... | 0 | 1 | 0 | 0 | 0 | 0 |
Enemy At the Gateways: A Game Theoretic Approach to Proxy Distribution | A core technique used by popular proxy-based circumvention systems like Tor,
Psiphon, and Lantern is to secretly share the IP addresses of circumvention
proxies with the censored clients for them to be able to use such systems. For
instance, such secretly shared proxies are known as bridges in Tor. However, a
key cha... | 1 | 0 | 0 | 0 | 0 | 0 |
Mod-$p$ isogeny classes on Shimura varieties with parahoric level structure | We study the special fiber of the integral models for Shimura varieties of
Hodge type with parahoric level structure constructed by Kisin and Pappas in
[KP]. We show that when the group is residually split, the points in the mod
$p$ isogeny classes have the form predicted by the Langlands Rapoport
conjecture in [LR].... | 0 | 0 | 1 | 0 | 0 | 0 |
Bayesian Optimization with Gradients | Bayesian optimization has been successful at global optimization of
expensive-to-evaluate multimodal objective functions. However, unlike most
optimization methods, Bayesian optimization typically does not use derivative
information. In this paper we show how Bayesian optimization can exploit
derivative information t... | 1 | 0 | 1 | 1 | 0 | 0 |
How to cut a cake with a gram matrix | In this article we study the problem of fair division. In particular we study
a notion introduced by J. Barbanel that generalizes super envy-free fair
division. We give a new proof of his result. Our approach allows us to give an
explicit bound for this kind of fair division. Furthermore, we also give a
theoretical a... | 1 | 0 | 0 | 0 | 0 | 0 |
Magnetic MIMO Signal Processing and Optimization for Wireless Power Transfer | In magnetic resonant coupling (MRC) enabled multiple-input multiple-output
(MIMO) wireless power transfer (WPT) systems, multiple transmitters (TXs) each
with one single coil are used to enhance the efficiency of simultaneous power
transfer to multiple single-coil receivers (RXs) by constructively combining
their ind... | 1 | 0 | 0 | 0 | 0 | 0 |
Bouncy Hybrid Sampler as a Unifying Device | This work introduces a class of rejection-free Markov chain Monte Carlo
(MCMC) samplers, named the Bouncy Hybrid Sampler, which unifies several
existing methods from the literature. Examples include the Bouncy Particle
Sampler of Peters and de With (2012), Bouchard-Cote et al. (2015) and the
Hamiltonian MCMC. Followi... | 0 | 0 | 0 | 1 | 0 | 0 |
Lifshitz interaction can promote ice growth at water-silica interfaces | At air-water interfaces, the Lifshitz interaction by itself does not promote
ice growth. On the contrary, we find that the Lifshitz force promotes the
growth of an ice film, up to 1-8 nm thickness, near silica-water interfaces at
the triple point of water. This is achieved in a system where the combined
effect of the... | 0 | 1 | 0 | 0 | 0 | 0 |
Reverse iterative volume sampling for linear regression | We study the following basic machine learning task: Given a fixed set of
$d$-dimensional input points for a linear regression problem, we wish to
predict a hidden response value for each of the points. We can only afford to
attain the responses for a small subset of the points that are then used to
construct linear p... | 0 | 0 | 0 | 1 | 0 | 0 |
Learning from Complementary Labels | Collecting labeled data is costly and thus a critical bottleneck in
real-world classification tasks. To mitigate this problem, we propose a novel
setting, namely learning from complementary labels for multi-class
classification. A complementary label specifies a class that a pattern does not
belong to. Collecting com... | 1 | 0 | 0 | 1 | 0 | 0 |
Dusty winds in active galactic nuclei: reconciling observations with models | This letter presents a revised radiative transfer model for the infrared (IR)
emission of active galactic nuclei (AGN). While current models assume that the
IR is emitted from a dusty torus in the equatorial plane of the AGN, spatially
resolved observations indicate that the majority of the IR emission from 100 pc
in... | 0 | 1 | 0 | 0 | 0 | 0 |
Continuity of Utility Maximization under Weak Convergence | In this paper we find sufficient conditions for the continuity of the value
of the utility maximization problem from terminal wealth with respect to the
convergence in distribution of the underlying processes. We provide several
examples which illustrate that without these conditions, we cannot generally
expect conti... | 0 | 0 | 0 | 0 | 0 | 1 |
Introducing the anatomy of disciplinary discernment: an example from astronomy | Education is increasingly being framed by a competence mindset; the value of
knowledge lies much more in competence performativity and innovation than in
simply knowing. Reaching such competency in areas such as astronomy and physics
has long been known to be challenging. The movement from everyday conceptions
of the... | 0 | 1 | 0 | 0 | 0 | 0 |
Well-posedness and dispersive decay of small data solutions for the Benjamin-Ono equation | This article represents a first step toward understanding the long time
dynamics of solutions for the Benjamin-Ono equation. While this problem is
known to be both completely integrable and globally well-posed in $L^2$, much
less seems to be known concerning its long time dynamics. Here, we prove that
for small local... | 0 | 0 | 1 | 0 | 0 | 0 |
A vehicle-to-infrastructure communication based algorithm for urban traffic control | We present in this paper a new algorithm for urban traffic light control with
mixed traffic (communicating and non communicating vehicles) and mixed
infrastructure (equipped and unequipped junctions). We call equipped junction
here a junction with a traffic light signal (TLS) controlled by a road side
unit (RSU). On ... | 1 | 0 | 1 | 0 | 0 | 0 |
Some Theorems on Optimality of a Single Observation Confidence Interval for the Mean of a Normal Distribution | We consider the problem of finding a proper confidence interval for the mean
based on a single observation from a normal distribution with both mean and
variance unknown. Portnoy (2017) characterizes the scale-sign invariant rules
and shows that the Hunt-Stein construction provides a randomized invariant rule
that im... | 0 | 0 | 1 | 1 | 0 | 0 |
Reliability and applicability of magnetic force linear response theory: Numerical parameters, predictability, and orbital resolution | We investigated the reliability and applicability of so-called magnetic force
linear response method to calculate spin-spin interaction strengths from
first-principles. We examined the dependence on the numerical parameters
including the number of basis orbitals and their cutoff radii within
non-orthogonal LCPAO (lin... | 0 | 1 | 0 | 0 | 0 | 0 |
Verifying Probabilistic Timed Automata Against Omega-Regular Dense-Time Properties | Probabilistic timed automata (PTAs) are timed automata (TAs) extended with
discrete probability distributions.They serve as a mathematical model for a
wide range of applications that involve both stochastic and timed behaviours.
In this work, we consider the problem of model-checking linear
\emph{dense-time} properti... | 1 | 0 | 0 | 0 | 0 | 0 |
On the number of integer polynomials with multiplicatively dependent roots | In this paper, we give some counting results on integer polynomials of fixed
degree and bounded height whose distinct non-zero roots are multiplicatively
dependent. These include sharp lower bounds, upper bounds and asymptotic
formulas for various cases, although in general there is a logarithmic gap
between lower an... | 0 | 0 | 1 | 0 | 0 | 0 |
New irreducible tensor product modules for the Virasoro algebra | In this paper, we obtain a class of Virasoro modules by taking tensor
products of the irreducible Virasoro modules $\Omega(\lambda,\alpha,h)$ defined
in \cite{CG}, with irreducible highest weight modules $V(\theta,h)$ or with
irreducible Virasoro modules Ind$_{\theta}(N)$ defined in \cite{MZ2}. We obtain
the necessar... | 0 | 0 | 1 | 0 | 0 | 0 |
Polarization dynamics in a photon BEC | It has previously been shown that a dye-filled microcavity can produce a
Bose-Einstein condensate of photons. Thermalization of photons is possible via
repeated absorption and re-emission by the dye molecules. In this paper, we
theoretically explore the behavior of the polarization of light in this system.
We find th... | 0 | 1 | 0 | 0 | 0 | 0 |
Combining symmetry breaking and restoration with configuration interaction: extension to z-signature symmetry in the case of the Lipkin Model | Background: Ab initio many-body methods whose numerical cost scales
polynomially with the number of particles have been developed over the past
fifteen years to tackle closed-shell mid-mass nuclei. Open-shell nuclei have
been further addressed by implementing variants based on the concept of
spontaneous symmetry brea... | 0 | 1 | 0 | 0 | 0 | 0 |
Nonlocal Cauchy problems for wave equations and applications | In this paper, the existence, the uniqueness and estimates of solution to the
integral Cauchy problem for linear and nonlinear abstract wave equations are
proved. The equation includes a linear operator A defined in a Banach space E,
in which by choosing E and A we can obtain numerous classis of nonlocal initial
valu... | 0 | 0 | 1 | 0 | 0 | 0 |
A two-phase gradient method for quadratic programming problems with a single linear constraint and bounds on the variables | We propose a gradient-based method for quadratic programming problems with a
single linear constraint and bounds on the variables. Inspired by the GPCG
algorithm for bound-constrained convex quadratic programming [J.J. Moré and
G. Toraldo, SIAM J. Optim. 1, 1991], our approach alternates between two phases
until conv... | 0 | 0 | 1 | 0 | 0 | 0 |
Euler characteristic and Akashi series for Selmer groups over global function fields | Let $A$ be an abelian variety defined over a global function field $F$ of
positive characteristic $p$ and let $K/F$ be a $p$-adic Lie extension with
Galois group $G$. We provide a formula for the Euler characteristic
$\chi(G,Sel_A(K)_p)$ of the $p$-part of the Selmer group of $A$ over $K$. In
the special case $G=\mat... | 0 | 0 | 1 | 0 | 0 | 0 |
The effect of boundary conditions on mixing of 2D Potts models at discontinuous phase transitions | We study Swendsen--Wang dynamics for the critical $q$-state Potts model on
the square lattice. For $q=2,3,4$, where the phase transition is continuous,
the mixing time $t_{\textrm{mix}}$ is expected to obey a universal power-law
independent of the boundary conditions. On the other hand, for large $q$, where
the phase... | 0 | 0 | 1 | 0 | 0 | 0 |
Number of thermodynamic states in the three-dimensional Edwards-Anderson spin glass | The question of the number of thermodynamic states present in the
low-temperature phase of the three-dimensional Edwards-Anderson Ising spin
glass is addressed by studying spin and link overlap distributions using
population annealing Monte Carlo simulations. We consider overlaps between
systems with the same boundar... | 0 | 1 | 0 | 0 | 0 | 0 |
Mechanics of disordered auxetic metamaterials | Auxetic materials are of great engineering interest not only because of their
fascinating negative Poisson's ratio, but also due to their increased toughness
and indentation resistance. These materials are typically synthesized polyester
foams with a very heterogeneous structure, but the role of disorder in auxetic
b... | 0 | 1 | 0 | 0 | 0 | 0 |
Coherent Oscillations of Driven rf SQUID Metamaterials | Through experiments and numerical simulations we explore the behavior of rf
SQUID (radio frequency superconducting quantum interference device)
metamaterials, which show extreme tunability and nonlinearity. The emergent
electromagnetic properties of this metamaterial are sensitive to the degree of
coherent response o... | 0 | 1 | 0 | 0 | 0 | 0 |
Localizing virtual structure sheaves by cosections | We construct a cosection localized virtual structure sheaf when a
Deligne-Mumford stack is equipped with a perfect obstruction theory and a
cosection of the obstruction sheaf.
| 0 | 0 | 1 | 0 | 0 | 0 |
Regularized Greedy Column Subset Selection | The Column Subset Selection Problem provides a natural framework for
unsupervised feature selection. Despite being a hard combinatorial optimization
problem, there exist efficient algorithms that provide good approximations. The
drawback of the problem formulation is that it incorporates no form of
regularization, an... | 0 | 0 | 0 | 1 | 0 | 0 |
The Cartan Algorithm in Five Dimensions | In this paper we introduce an algorithm to determine the equivalence of five
dimensional spacetimes, which generalizes the Karlhede algorithm for four
dimensional general relativity. As an alternative to the Petrov type
classification, we employ the alignment classification to algebraically
classify the Weyl tensor. ... | 0 | 0 | 1 | 0 | 0 | 0 |
Uniform convergence for the incompressible limit of a tumor growth model | We study a model introduced by Perthame and Vauchelet that describes the
growth of a tumor governed by Brinkman's Law, which takes into account friction
between the tumor cells. We adopt the viscosity solution approach to establish
an optimal uniform convergence result of the tumor density as well as the
pressure in ... | 0 | 0 | 1 | 0 | 0 | 0 |
Clustering in Hilbert space of a quantum optimization problem | The solution space of many classical optimization problems breaks up into
clusters which are extensively distant from one another in the Hamming metric.
Here, we show that an analogous quantum clustering phenomenon takes place in
the ground state subspace of a certain quantum optimization problem. This
involves exten... | 1 | 1 | 0 | 0 | 0 | 0 |
Political Discourse on Social Media: Echo Chambers, Gatekeepers, and the Price of Bipartisanship | Echo chambers, i.e., situations where one is exposed only to opinions that
agree with their own, are an increasing concern for the political discourse in
many democratic countries. This paper studies the phenomenon of political echo
chambers on social media. We identify the two components in the phenomenon: the
opini... | 1 | 0 | 0 | 0 | 0 | 0 |
Resonance enhancement of two photon absorption by magnetically trapped atoms in strong rf-fields | Applying a many mode Floquet formalism for magnetically trapped atoms
interacting with a polychromatic rf-field, we predict a large two photon
transition probability in the atomic system of cold $^{87}Rb$ atoms. The
physical origin of this enormous increase in the two photon transition
probability is due to the forma... | 0 | 1 | 0 | 0 | 0 | 0 |
Unveiling the AGN in IC 883: discovery of a parsec-scale radio jet | IC883 is a luminous infrared galaxy (LIRG) classified as a starburst-active
galactic nucleus (AGN) composite. In a previous study we detected a
low-luminosity AGN (LLAGN) radio candidate. Here we report on our radio
follow-up at three frequencies which provides direct and unequivocal evidence
of the AGN activity in I... | 0 | 1 | 0 | 0 | 0 | 0 |
Counting triangles, tunable clustering and the small-world property in random key graphs (Extended version) | Random key graphs were introduced to study various properties of the
Eschenauer-Gligor key predistribution scheme for wireless sensor networks
(WSNs). Recently this class of random graphs has received much attention in
contexts as diverse as recommender systems, social network modeling, and
clustering and classificat... | 1 | 0 | 1 | 0 | 0 | 0 |
Convergence Rates of Variational Posterior Distributions | We study convergence rates of variational posterior distributions for
nonparametric and high-dimensional inference. We formulate general conditions
on prior, likelihood, and variational class that characterize the convergence
rates. Under similar "prior mass and testing" conditions considered in the
literature, the r... | 0 | 0 | 1 | 1 | 0 | 0 |
V773 Cas, QS Aql, and BR Ind: Eclipsing Binaries as Parts of Multiple Systems | Eclipsing binaries remain crucial objects for our understanding of the
universe. In particular, those that are components of multiple systems can help
us solve the problem of the formation of these systems. Analysis of the radial
velocities together with the light curve produced for the first time precise
physical pa... | 0 | 1 | 0 | 0 | 0 | 0 |
Variance bounding of delayed-acceptance kernels | A delayed-acceptance version of a Metropolis--Hastings algorithm can be
useful for Bayesian inference when it is computationally expensive to calculate
the true posterior, but a computationally cheap approximation is available; the
delayed-acceptance kernel targets the same posterior as its parent
Metropolis-Hastings... | 0 | 0 | 1 | 1 | 0 | 0 |
Positive Herz-Schur multipliers and approximation properties of crossed products | For a $C^*$-algebra $A$ and a set $X$ we give a Stinespring-type
characterisation of the completely positive Schur $A$-multipliers on
$K(\ell^2(X))\otimes A$. We then relate them to completely positive Herz-Schur
multipliers on $C^*$-algebraic crossed products of the form
$A\rtimes_{\alpha,r} G$, with $G$ a discrete ... | 0 | 0 | 1 | 0 | 0 | 0 |
Bias-Variance Tradeoff of Graph Laplacian Regularizer | This paper presents a bias-variance tradeoff of graph Laplacian regularizer,
which is widely used in graph signal processing and semi-supervised learning
tasks. The scaling law of the optimal regularization parameter is specified in
terms of the spectral graph properties and a novel signal-to-noise ratio
parameter, w... | 1 | 0 | 0 | 1 | 0 | 0 |
Dual Discriminator Generative Adversarial Nets | We propose in this paper a novel approach to tackle the problem of mode
collapse encountered in generative adversarial network (GAN). Our idea is
intuitive but proven to be very effective, especially in addressing some key
limitations of GAN. In essence, it combines the Kullback-Leibler (KL) and
reverse KL divergence... | 1 | 0 | 0 | 1 | 0 | 0 |
A Compressive Sensing Approach to Community Detection with Applications | The community detection problem for graphs asks one to partition the n
vertices V of a graph G into k communities, or clusters, such that there are
many intracluster edges and few intercluster edges. Of course this is
equivalent to finding a permutation matrix P such that, if A denotes the
adjacency matrix of G, then... | 1 | 0 | 0 | 1 | 0 | 0 |
Uncertainty quantification for radio interferometric imaging: I. proximal MCMC methods | Uncertainty quantification is a critical missing component in radio
interferometric imaging that will only become increasingly important as the
big-data era of radio interferometry emerges. Since radio interferometric
imaging requires solving a high-dimensional, ill-posed inverse problem,
uncertainty quantification i... | 0 | 1 | 0 | 1 | 0 | 0 |
Fairer and more accurate, but for whom? | Complex statistical machine learning models are increasingly being used or
considered for use in high-stakes decision-making pipelines in domains such as
financial services, health care, criminal justice and human services. These
models are often investigated as possible improvements over more classical
tools such as... | 1 | 0 | 0 | 1 | 0 | 0 |
Multiresolution Tensor Decomposition for Multiple Spatial Passing Networks | This article is motivated by soccer positional passing networks collected
across multiple games. We refer to these data as replicated spatial passing
networks---to accurately model such data it is necessary to take into account
the spatial positions of the passer and receiver for each passing event. This
spatial regi... | 1 | 0 | 0 | 1 | 0 | 0 |
Fast-slow asymptotic for semi-analytical ignition criteria in FitzHugh-Nagumo system | We study the problem of initiation of excitation waves in the FitzHugh-Nagumo
model. Our approach follows earlier works and is based on the idea of
approximating the boundary between basins of attraction of propagating waves
and of the resting state as the stable manifold of a critical solution. Here,
we obtain analy... | 0 | 1 | 0 | 0 | 0 | 0 |
What drives galactic magnetism? | We aim to use statistical analysis of a large number of various galaxies to
probe, model, and understand relations between different galaxy properties and
magnetic fields. We have compiled a sample of 55 galaxies including low-mass
dwarf and Magellanic-types, normal spirals and several massive starbursts, and
applied... | 0 | 1 | 0 | 0 | 0 | 0 |
Regular Separability of One Counter Automata | The regular separability problem asks, for two given languages, if there
exists a regular language including one of them but disjoint from the other.
Our main result is decidability, and PSpace-completeness, of the regular
separability problem for languages of one counter automata without zero tests
(also known as on... | 1 | 0 | 0 | 0 | 0 | 0 |
Fast Incremental SVDD Learning Algorithm with the Gaussian Kernel | Support vector data description (SVDD) is a machine learning technique that
is used for single-class classification and outlier detection. The idea of SVDD
is to find a set of support vectors that defines a boundary around data. When
dealing with online or large data, existing batch SVDD methods have to be rerun
in e... | 0 | 0 | 0 | 1 | 0 | 0 |
Comparing distributions by multiple testing across quantiles or CDF values | When comparing two distributions, it is often helpful to learn at which
quantiles or values there is a statistically significant difference. This
provides more information than the binary "reject" or "do not reject" decision
of a global goodness-of-fit test. Framing our question as multiple testing
across the continu... | 0 | 0 | 1 | 1 | 0 | 0 |
Magnetic droplet nucleation with homochiral Neel domain wall | We investigate the effect of the Dzyaloshinskii Moriya interaction (DMI) on
magnetic domain nucleation in a ferromagnetic thin film with perpendicular
magnetic anisotropy. We propose an extended droplet model to determine the
nucleation field as a function of the in-plane field. The model can explain the
experimental... | 0 | 1 | 0 | 0 | 0 | 0 |
Cost-complexity pruning of random forests | Random forests perform bootstrap-aggregation by sampling the training samples
with replacement. This enables the evaluation of out-of-bag error which serves
as a internal cross-validation mechanism. Our motivation lies in using the
unsampled training samples to improve each decision tree in the ensemble. We
study the... | 1 | 0 | 0 | 1 | 0 | 0 |
Chemical abundances of fast-rotating massive stars. I. Description of the methods and individual results | Aims: Recent observations have challenged our understanding of rotational
mixing in massive stars by revealing a population of fast-rotating objects with
apparently normal surface nitrogen abundances. However, several questions have
arisen because of a number of issues, which have rendered a reinvestigation
necessary... | 0 | 1 | 0 | 0 | 0 | 0 |
Morphology and Motility of Cells on Soft Substrates | Recent experiments suggest that the interplay between cells and the mechanics
of their substrate gives rise to a diversity of morphological and migrational
behaviors. Here, we develop a Cellular Potts Model of polarizing cells on a
visco-elastic substrate. We compare our model with experiments on endothelial
cells pl... | 0 | 0 | 0 | 0 | 1 | 0 |
A domain-specific language and matrix-free stencil code for investigating electronic properties of Dirac and topological materials | We introduce PVSC-DTM (Parallel Vectorized Stencil Code for Dirac and
Topological Materials), a library and code generator based on a domain-specific
language tailored to implement the specific stencil-like algorithms that can
describe Dirac and topological materials such as graphene and topological
insulators in a m... | 1 | 1 | 0 | 0 | 0 | 0 |
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