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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Three-dimensional oscillatory magnetic reconnection | Here we detail the dynamic evolution of localised reconnection regions about
three-dimensional (3D) magnetic null points by using numerical simulation. We
demonstrate for the first time that reconnection triggered by the localised
collapse of a 3D null point due to an external MHD wave involves a
self-generated oscil... | 0 | 1 | 0 | 0 | 0 | 0 |
Limits of Risk Predictability in a Cascading Alternating Renewal Process Model | Most risk analysis models systematically underestimate the probability and
impact of catastrophic events (e.g., economic crises, natural disasters, and
terrorism) by not taking into account interconnectivity and interdependence of
risks. To address this weakness, we propose the Cascading Alternating Renewal
Process (... | 1 | 1 | 0 | 0 | 0 | 0 |
Self-contracted curves have finite length | A curve $\theta$: $I\to E$ in a metric space $E$ equipped with the distance
$d$, where $I\subset \R$ is a (possibly unbounded) interval, is called
self-contracted, if for any triple of instances of time $\{t_i\}_{i=1}^3\subset
I$ with $t_1\leq t_2\leq t_3$ one has $d(\theta(t_3),\theta(t_2))\leq
d(\theta(t_3),\theta(... | 0 | 0 | 1 | 0 | 0 | 0 |
Unsupervised robust nonparametric learning of hidden community properties | We consider learning of fundamental properties of communities in large noisy
networks, in the prototypical situation where the nodes or users are split into
two classes according to a binary property, e.g., according to their opinions
or preferences on a topic. For learning these properties, we propose a
nonparametri... | 1 | 0 | 0 | 1 | 0 | 0 |
OPEB: Open Physical Environment Benchmark for Artificial Intelligence | Artificial Intelligence methods to solve continuous- control tasks have made
significant progress in recent years. However, these algorithms have important
limitations and still need significant improvement to be used in industry and
real- world applications. This means that this area is still in an active
research p... | 1 | 0 | 0 | 0 | 0 | 0 |
The First Measurement of the $2^{3}S_{1} \rightarrow 3^{3}P - 2^{3}P$ Tune-Out Wavelength in He* | The workhorse of atomic physics: quantum electrodynamics is one of the best
tested theories in physics. However recent discrepancies have shed doubt on its
accuracy for complex atomic systems. To facilitate the development of the
theory further we aim to measure transition dipole matrix elements of
metastable helium ... | 0 | 1 | 0 | 0 | 0 | 0 |
WheelCon: A wheel control-based gaming platform for studying human sensorimotor control | Feedback control theory has been extensively implemented to theoretically
model human sensorimotor control. However, experimental platforms capable of
manipulating important components of multiple feedback loops lack development.
This paper describes the WheelCon, which is an open source platform aimed at
resolving s... | 0 | 0 | 0 | 0 | 1 | 0 |
Depression and Self-Harm Risk Assessment in Online Forums | Users suffering from mental health conditions often turn to online resources
for support, including specialized online support communities or general
communities such as Twitter and Reddit. In this work, we present a neural
framework for supporting and studying users in both types of communities. We
propose methods f... | 1 | 0 | 0 | 0 | 0 | 0 |
Quantum dilogarithm identities for the square product of A-type Dynkin quivers | The famous pentagon identity for quantum dilogarithms has a generalization
for every Dynkin quiver, due to Reineke. A more advanced generalization is
associated with a pair of alternating Dynkin quivers, due to Keller. The
description and proof of Keller's identities involves cluster algebras and
cluster categories, ... | 0 | 0 | 1 | 0 | 0 | 0 |
A Probabilistic Linear Genetic Programming with Stochastic Context-Free Grammar for solving Symbolic Regression problems | Traditional Linear Genetic Programming (LGP) algorithms are based only on the
selection mechanism to guide the search. Genetic operators combine or mutate
random portions of the individuals, without knowing if the result will lead to
a fitter individual. Probabilistic Model Building Genetic Programming (PMB-GP)
metho... | 1 | 0 | 0 | 1 | 0 | 0 |
Trace-free ${\rm SL}(2,\mathbb{C})$-representations of arborescent links | Given a link $L\subset S^3$, a representation $\pi_1(S^3-L)\to{\rm
SL}(2,\mathbb{C})$ is {\it trace-free} if it sends each meridian to an element
with trace zero. We present a method for completely determining trace-free
${\rm SL}(2,\mathbb{C})$-representations for arborescent links. Concrete
computations are done fo... | 0 | 0 | 1 | 0 | 0 | 0 |
Algorithms for Weighted Sums of Squares Decomposition of Non-negative Univariate Polynomials | It is well-known that every non-negative univariate real polynomial can be
written as the sum of two polynomial squares with real coefficients. When one
allows a weighted sum of finitely many squares instead of a sum of two squares,
then one can choose all coefficients in the representation to lie in the field
genera... | 1 | 0 | 0 | 0 | 0 | 0 |
The Calkin algebra is $\aleph_1$-universal | We discuss the existence of (injectively) universal C*-algebras and prove
that all C*-algebras of density character $\aleph_1$ embed into the Calkin
algebra, $Q(H)$. Together with other results, this shows that each of the
following assertions is relatively consistent with ZFC: (i) $Q(H)$ is a
$2^{\aleph_0}$-universa... | 0 | 0 | 1 | 0 | 0 | 0 |
Learning Structured Semantic Embeddings for Visual Recognition | Numerous embedding models have been recently explored to incorporate semantic
knowledge into visual recognition. Existing methods typically focus on
minimizing the distance between the corresponding images and texts in the
embedding space but do not explicitly optimize the underlying structure. Our
key observation is... | 1 | 0 | 0 | 0 | 0 | 0 |
Estimators for a Class of Bivariate Measures of Concordance for Copulas | In the present paper we propose and study estimators for a wide class of
bivariate measures of concordance for copulas. These measures of concordance
are generated by a copula and generalize Spearman's rho and Gini's gamma. In
the case of Spearman's rho and Gini's gamma the estimators turn out to be the
usual sample ... | 0 | 0 | 1 | 1 | 0 | 0 |
Variational treatment of electron-polyatomic molecule scattering calculations using adaptive overset grids | The Complex Kohn variational method for electron-polyatomic molecule
scattering is formulated using an overset grid representation of the scattering
wave function. The overset grid consists of a central grid and multiple dense,
atom-centered subgrids that allow the simultaneous spherical expansions of the
wave functi... | 0 | 1 | 0 | 0 | 0 | 0 |
Geometry of quantum dynamics in infinite dimension | We develop a geometric approach to quantum mechanics based on the concept of
the Tulczyjew triple. Our approach is genuinely infinite-dimensional and
including a Lagrangian formalism in which self-adjoint (Schroedinger) operators
are obtained as Lagrangian submanifolds associated with the Lagrangian. As a
byproduct w... | 0 | 0 | 1 | 0 | 0 | 0 |
Canonical tilting relative generators | Given a relatively projective birational morphism $f\colon X\to Y$ of smooth
algebraic spaces with dimension of fibers bounded by 1, we construct tilting
relative (over $Y$) generators $T_{X,f}$ and $S_{X,f}$ in $\mathcal{D}^b(X)$.
We develop a piece of general theory of strict admissible lattice filtrations
in trian... | 0 | 0 | 1 | 0 | 0 | 0 |
Groupwise Structural Parcellation of the Cortex: A Sound Approach Based on Logistic Models | Current theories hold that brain function is highly related to long-range
physical connections through axonal bundles, namely extrinsic connectiv-ity.
However, obtaining a groupwise cortical parcellation based on extrinsic
connectivity remains challenging. Current parcellation methods are
compu-tationally expensive; ... | 0 | 0 | 0 | 1 | 0 | 0 |
Modeling Biological Problems in Computer Science: A Case Study in Genome Assembly | As computer scientists working in bioinformatics/computational biology, we
often face the challenge of coming up with an algorithm to answer a biological
question. This occurs in many areas, such as variant calling, alignment, and
assembly. In this tutorial, we use the example of the genome assembly problem
to demons... | 1 | 0 | 0 | 0 | 0 | 0 |
MEC: Memory-efficient Convolution for Deep Neural Network | Convolution is a critical component in modern deep neural networks, thus
several algorithms for convolution have been developed. Direct convolution is
simple but suffers from poor performance. As an alternative, multiple indirect
methods have been proposed including im2col-based convolution, FFT-based
convolution, or... | 1 | 0 | 0 | 0 | 0 | 0 |
On age of 6070 Rheinland and 54827 (2001 NQ8) asteroid pair | In this paper we present results of our studying of famous very young pair of
asteroids 6070 Rheinland and 54827 (2001 NQ8). We have done numeric integration
of orbits of pair with only planet perturbations and include Ceres and Vesta
effect. We have confirmed results of previous studying, obtained with different
int... | 0 | 1 | 0 | 0 | 0 | 0 |
First-Order Reversal Curves of the Magnetostructural Phase Transition in FeTe | We apply the first-order reversal curve (FORC) method, borrowed from studies
of ferromagnetic materials, to the magneto-structural phase transition of FeTe.
FORC measurements reveal two features in the hysteretic phase transition, even
in samples where traditional temperature measurements display only a single
transi... | 0 | 1 | 0 | 0 | 0 | 0 |
Data Analytics on Online Labor Markets: Opportunities and Challenges | The data-driven economy has led to a significant shortage of data scientists.
To address this shortage, this study explores the prospects of outsourcing data
analysis tasks to freelancers available on online labor markets (OLMs) by
identifying the essential factors for this endeavor. Specifically, we explore
the skil... | 1 | 0 | 0 | 0 | 0 | 0 |
Analyzing the Robustness of Nearest Neighbors to Adversarial Examples | Motivated by safety-critical applications, test-time attacks on classifiers
via adversarial examples has recently received a great deal of attention.
However, there is a general lack of understanding on why adversarial examples
arise; whether they originate due to inherent properties of data or due to lack
of trainin... | 1 | 0 | 0 | 1 | 0 | 0 |
Non Uniform On Chip Power Delivery Network Synthesis Methodology | In this paper, we proposed a non-uniform power delivery network (PDN)
synthesis methodology. It first constructs initial PDN using uniform approach.
Then preliminary power integrity analysis is performed to derive IR-safe
candidate window. Congestion map is obtained based global route congestion
estimation. A self-ad... | 1 | 0 | 0 | 0 | 0 | 0 |
Translating ceRNA susceptibilities into correlation functions | Competition to bind microRNAs induces an effective positive crosstalk between
their targets, therefore known as `competing endogenous RNAs' or ceRNAs. While
such an effect is known to play a significant role in specific conditions,
estimating its strength from data and, experimentally, in physiological
conditions app... | 0 | 1 | 0 | 0 | 0 | 0 |
Impact of energetic particle orbits on long range frequency chirping of BGK modes | Long range frequency chirping of Bernstein-Greene-Kruskal modes, whose
existence is determined by the fast particles, is investigated in cases where
these particles do not move freely and their motion is bounded to restricted
orbits. An equilibrium oscillating potential, which creates different orbit
topologies of en... | 0 | 1 | 0 | 0 | 0 | 0 |
An Executable Specification of Typing Rules for Extensible Records based on Row Polymorphism | Type inference is an application domain that is a natural fit for logic
programming (LP). LP systems natively support unification, which serves as a
basic building block of typical type inference algorithms. In particular,
polymorphic type inference in the Hindley--Milner type system (HM) can be
succinctly specified ... | 1 | 0 | 0 | 0 | 0 | 0 |
Seasonal Stochastic Volatility and the Samuelson Effect in Agricultural Futures Markets | We introduce a multi-factor stochastic volatility model for commodities that
incorporates seasonality and the Samuelson effect. Conditions on the seasonal
term under which the corresponding volatility factor is well-defined are given,
and five different specifications of the seasonality pattern are proposed. We
calcu... | 0 | 0 | 0 | 0 | 0 | 1 |
A Computational Model of a Single-Photon Avalanche Diode Sensor for Transient Imaging | Single-Photon Avalanche Diodes (SPAD) are affordable photodetectors, capable
to collect extremely fast low-energy events, due to their single-photon
sensibility. This makes them very suitable for time-of-flight-based range
imaging systems, allowing to reduce costs and power requirements, without
sacrifizing much temp... | 1 | 1 | 0 | 0 | 0 | 0 |
On Certain Tilting Modules for SL2 | We give a complete picture of when the tensor product of an induced module
and a Weyl module is a tilting module for the algebraic group $SL_2$ over an
algebraically closed field of characteristic $p$. Whilst the result is
recursive by nature, we give an explicit statement in terms of the $p$-adic
expansions of the h... | 0 | 0 | 1 | 0 | 0 | 0 |
First-order Methods Almost Always Avoid Saddle Points | We establish that first-order methods avoid saddle points for almost all
initializations. Our results apply to a wide variety of first-order methods,
including gradient descent, block coordinate descent, mirror descent and
variants thereof. The connecting thread is that such algorithms can be studied
from a dynamical... | 1 | 0 | 0 | 1 | 0 | 0 |
Faster Algorithms for Computing Maximal 2-Connected Subgraphs in Sparse Directed Graphs | Connectivity related concepts are of fundamental interest in graph theory.
The area has received extensive attention over four decades, but many problems
remain unsolved, especially for directed graphs. A directed graph is
2-edge-connected (resp., 2-vertex-connected) if the removal of any edge (resp.,
vertex) leaves ... | 1 | 0 | 0 | 0 | 0 | 0 |
Summable Reparameterizations of Wasserstein Critics in the One-Dimensional Setting | Generative adversarial networks (GANs) are an exciting alternative to
algorithms for solving density estimation problems---using data to assess how
likely samples are to be drawn from the same distribution. Instead of
explicitly computing these probabilities, GANs learn a generator that can match
the given probabilis... | 1 | 0 | 0 | 1 | 0 | 0 |
Fingering instabilities and pattern formation in a two-component dipolar Bose-Einstein condensate | We study fingering instabilities and pattern formation at the interface of an
oppositely polarized two-component Bose-Einstein condensate with strong
dipole-dipole interactions in three dimensions. It is shown that the rotational
symmetry is spontaneously broken by fingering instability when the
dipole-dipole interac... | 0 | 1 | 0 | 0 | 0 | 0 |
Fast Information-theoretic Bayesian Optimisation | Information-theoretic Bayesian optimisation techniques have demonstrated
state-of-the-art performance in tackling important global optimisation
problems. However, current information-theoretic approaches require many
approximations in implementation, introduce often-prohibitive computational
overhead and limit the ch... | 0 | 0 | 0 | 1 | 0 | 0 |
ExoMol molecular line lists XX: a comprehensive line list for H$_3^+$ | H$_3^+$ is a ubiquitous and important astronomical species whose spectrum has
been observed in the interstellar medium, planets and tentatively in the
remnants of supernova SN1897a. Its role as a cooler is important for gas giant
planets and exoplanets, and possibly the early Universe. All this makes the
spectral pro... | 0 | 1 | 0 | 0 | 0 | 0 |
Robust and Sparse Regression in GLM by Stochastic Optimization | The generalized linear model (GLM) plays a key role in regression analyses.
In high-dimensional data, the sparse GLM has been used but it is not robust
against outliers. Recently, the robust methods have been proposed for the
specific example of the sparse GLM. Among them, we focus on the robust and
sparse linear reg... | 0 | 0 | 0 | 1 | 0 | 0 |
A Hint-Based Technique for System Level Model-Based Test Case Prioritization | Test Case Prioritization (TCP) techniques aim at proposing new test case
execution orders to favor the achievement of certain testing goal, such as
fault detection. Current TCP research focus mainly on code-based regression
testing; however in the Model-Based Testing (MBT) context, we still need more
investigation. G... | 1 | 0 | 0 | 0 | 0 | 0 |
Control of birhythmicity: A self-feedback approach | Birhythmicity occurs in many natural and artificial systems. In this paper we
propose a self-feedback scheme to control birhythmicity. To establish the
efficacy and generality of the proposed control scheme, we apply it on three
birhythmic oscillators from diverse fields of natural science, namely, an
energy harvesti... | 0 | 1 | 0 | 0 | 0 | 0 |
Forecasting the magnitude and onset of El Nino based on climate network | El Nino is probably the most influential climate phenomenon on interannual
time scales. It affects the global climate system and is associated with
natural disasters and serious consequences in many aspects of human life.
However, the forecasting of the onset and in particular the magnitude of El
Nino are still not a... | 0 | 1 | 0 | 0 | 0 | 0 |
Weighted $1\times1$ cut-and-project sets in bounded distance to a lattice | Recent results of Grepstad and Lev are used to show that weighted
cut-and-project sets with one-dimensional physical space and one-dimensional
internal space are bounded distance equivalent to some lattice if the weight
function $h$ is continuous on the internal space, and if $h$ is either
piecewise linear, or twice ... | 0 | 0 | 1 | 0 | 0 | 0 |
On Ordinal Invariants in Well Quasi Orders and Finite Antichain Orders | We investigate the ordinal invariants height, length, and width of well quasi
orders (WQO), with particular emphasis on width, an invariant of interest for
the larger class of orders with finite antichain condition (FAC). We show that
the width in the class of FAC orders is completely determined by the width in
the c... | 0 | 0 | 1 | 0 | 0 | 0 |
Indices in XML Databases | With XML becoming a standard for business information representation and
exchange, stor-ing, indexing, and querying XML documents have rapidly become
major issues in database research. In this context, query processing and
optimization are primordial, native-XML data-bases not being mature yet. Data
structures such a... | 1 | 0 | 0 | 0 | 0 | 0 |
Kernel theorems for modulation spaces | We deal with kernel theorems for modulation spaces. We completely
characterize the continuity of a linear operator on the modulation spaces $M^p$
for every $1\leq p\leq\infty$, by the membership of its kernel to (mixed)
modulation spaces. Whereas Feichtinger's kernel theorem (which we recapture as
a special case) is ... | 0 | 0 | 1 | 0 | 0 | 0 |
On the Performance of Network Parallel Training in Artificial Neural Networks | Artificial Neural Networks (ANNs) have received increasing attention in
recent years with applications that span a wide range of disciplines including
vital domains such as medicine, network security and autonomous transportation.
However, neural network architectures are becoming increasingly complex and
with an inc... | 1 | 0 | 0 | 1 | 0 | 0 |
Fair Forests: Regularized Tree Induction to Minimize Model Bias | The potential lack of fairness in the outputs of machine learning algorithms
has recently gained attention both within the research community as well as in
society more broadly. Surprisingly, there is no prior work developing
tree-induction algorithms for building fair decision trees or fair random
forests. These met... | 1 | 0 | 0 | 1 | 0 | 0 |
Discretization of SU(2) and the Orthogonal Group Using Icosahedral Symmetries and the Golden Numbers | The vertices of the four dimensional $120$-cell form a non-crystallographic
root system whose corresponding symmetry group is the Coxeter group $H_{4}$.
There are two special coordinate representations of this root system in which
they and their corresponding Coxeter groups involve only rational numbers and
the golde... | 0 | 0 | 1 | 0 | 0 | 0 |
Raman spectra of crystalline secondary amides | The study of single-crystal Raman spectra of a series of crystalline
secondary amides (acetanilide, methacetin, phenacetine, orthorhombic and
monoclinic polymorphs of paracetamol) as well as simple amides formanilide and
benzanilide in the temperature range 5-300 K was carried out. The series of
compounds with the sa... | 0 | 1 | 0 | 0 | 0 | 0 |
Open-World Visual Recognition Using Knowledge Graphs | In a real-world setting, visual recognition systems can be brought to make
predictions for images belonging to previously unknown class labels. In order
to make semantically meaningful predictions for such inputs, we propose a
two-step approach that utilizes information from knowledge graphs. First, a
knowledge-graph... | 1 | 0 | 0 | 1 | 0 | 0 |
Mass-Imbalanced Ionic Hubbard Chain | A repulsive Hubbard model with both spin-asymmetric hopping (${t_\uparrow\neq
t_\downarrow}$) and a staggered potential (of strength $\Delta$) is studied in
one dimension. The model is a compound of the mass-imbalanced (${t_\uparrow\neq
t_\downarrow}$, ${\Delta=0}$) and ionic (${t_\uparrow = t_\downarrow}$,
${\Delta>... | 0 | 1 | 0 | 0 | 0 | 0 |
Optical properties of Xe color centers in diamond | Optical properties of color centers in diamond have been the subject of
intense research due to their promising applications in quantum photonics. In
this work we study the optical properties of Xe related color centers implanted
into nitrogen rich (type IIA) and an ultrapure, electronic grade diamond. The
Xe defect ... | 0 | 1 | 0 | 0 | 0 | 0 |
Julian Ernst Besag, 26 March 1945 -- 6 August 2010, a biographical memoir | Julian Besag was an outstanding statistical scientist, distinguished for his
pioneering work on the statistical theory and analysis of spatial processes,
especially conditional lattice systems. His work has been seminal in
statistical developments over the last several decades ranging from image
analysis to Markov ch... | 0 | 0 | 0 | 1 | 0 | 0 |
Wake fields in a rectangular dielectric-lined accelerating structure with transversal isotropic loading | Dielectric lined waveguides are under extensive study as accelerating
structures that can be excited by electron beams. Rectangular dielectric
structures are used both in proof of principle experiments for new accelerating
schemes and for studying the electronic properties of the structure loading
material. Analysis ... | 0 | 1 | 0 | 0 | 0 | 0 |
Hyperfine Structure of the $B^3Π_1$ State and Predictions of Optical Cycling Behavior in the $X\rightarrow B$ transition of TlF | The rotational and hyperfine spectrum of the $X^1\Sigma^+ \rightarrow
B^3\Pi_1$ transition in TlF molecules was measured using laser-induced
fluorescence from both a thermal and a cryogenic molecular beam. Rotational and
hyperfine constants for the $B$ state are obtained. The large magnetic
hyperfine interaction of t... | 0 | 1 | 0 | 0 | 0 | 0 |
Prevalence of DNSSEC for hospital websites in Illinois | The domain name system translates human friendly web addresses to a computer
readable internet protocol address. This basic infrastructure is insecure and
can be manipulated. Deployment of technology to secure the DNS system has been
slow, reaching about 20% of all web sites based in the USA. Little is known
about th... | 1 | 0 | 0 | 0 | 0 | 0 |
Mathematical analysis of plasmonic resonance for 2-D photonic crystal | In this article, we study the plasmonic resonance of infinite photonic
crystal mounted by the double negative nanoparticles in two dimensions. The
corresponding physical model is described by the Helmholz equation with so
called Bloch wave condition in a periodic domain. By using the quasi-periodic
layer potential te... | 0 | 0 | 1 | 0 | 0 | 0 |
Thermo-Optical Chaos and Direct Soliton Generation in Microresonators | We investigate, numerically and experimentally, the effect of thermo-optical
(TO) chaos on direct soliton generation (DSG) in microresonators. When the pump
laser is scanned from blue to red and then stopped at a fixed wavelength, we
find that the solitons generated sometimes remain (survive) and sometimes
annihilate... | 0 | 1 | 0 | 0 | 0 | 0 |
Rigidity of closed metric measure spaces with nonnegative curvature | We show that one-dimensional circle is the only case for closed smooth metric
measure spaces with nonnegative Bakry-Émery Ricci curvature whose spectrum
of the weighted Laplacian has an optimal positive upper bound. This result
extends the work of Hang-Wang in the manifold case (Int. Math. Res. Not. 18
(2007), Art. I... | 0 | 0 | 1 | 0 | 0 | 0 |
Combining Agile with Traditional V Model for Enhancement of Maturity in Software Development | In the field of software engineering there are many new archetypes are
introducing day to day Improve the efficiency and effectiveness of software
development. Due to dynamic environment organizations are frequently exchanging
their software constraint to meet their objectives. The propose research is a
new approach ... | 1 | 0 | 0 | 0 | 0 | 0 |
Histograms of Gaussian normal distribution for feature matching in clutter scenes | 3D feature descriptor provide information between corresponding models and
scenes. 3D objection recognition in cluttered scenes, however, remains a
largely unsolved problem. Practical applications impose several challenges
which are not fully addressed by existing methods. Especially in cluttered
scenes there are man... | 1 | 0 | 0 | 0 | 0 | 0 |
The temporalized Massey's method | We propose and throughly investigate a temporalized version of the popular
Massey's technique for rating actors in sport competitions. The method can be
described as a dynamic temporal process in which team ratings are updated at
every match according to their performance during the match and the strength of
the oppo... | 1 | 1 | 0 | 0 | 0 | 0 |
Introduction to Nonnegative Matrix Factorization | In this paper, we introduce and provide a short overview of nonnegative
matrix factorization (NMF). Several aspects of NMF are discussed, namely, the
application in hyperspectral imaging, geometry and uniqueness of NMF solutions,
complexity, algorithms, and its link with extended formulations of polyhedra.
In order t... | 1 | 0 | 1 | 1 | 0 | 0 |
Randomized Dynamic Mode Decomposition | This paper presents a randomized algorithm for computing the near-optimal
low-rank dynamic mode decomposition (DMD). Randomized algorithms are emerging
techniques to compute low-rank matrix approximations at a fraction of the cost
of deterministic algorithms, easing the computational challenges arising in the
area of... | 1 | 0 | 1 | 0 | 0 | 0 |
On the convergence of a fully discrete scheme of LES type to physically relevant solutions of the incompressible Navier-Stokes | Obtaining reliable numerical simulations of turbulent fluids is a challenging
problem in computational fluid mechanics. The Large Eddy Simulations (LES)
models are efficient tools to approximate turbulent fluids and an important
step in the validation of these models is the ability to reproduce relevant
properties of... | 0 | 0 | 1 | 0 | 0 | 0 |
Hardy-Sobolev-Maz'ya inequalities for higher order derivatives on half spaces | By using, among other things, the Fourier analysis techniques on hyperbolic
and symmetric spaces, we establish the Hardy-Sobolev-Maz'ya inequalities for
higher order derivatives on half spaces. The proof relies on a
Hardy-Littlewood-Sobolev inequality on hyperbolic spaces which is of its
independent interest. We also... | 0 | 0 | 1 | 0 | 0 | 0 |
Smooth invariants of focus-focus singularities and obstructions to product decomposition | We study focus-focus singularities (also known as nodal singularities, or
pinched tori) of Lagrangian fibrations on symplectic $4$-manifolds. We show
that, in contrast to elliptic and hyperbolic singularities, there exist
homeomorphic focus-focus singularities which are not diffeomorphic.
Furthermore, we obtain an al... | 0 | 1 | 1 | 0 | 0 | 0 |
A note about Euler's inequality and automated reasoning with dynamic geometry | Using implicit loci in GeoGebra Euler's $R\geq 2r$ inequality can be
investigated in a novel way. Some unavoidable side effects of the implicit
locus computation introduce unexpected algebraic curves. By using a mixture of
symbolic and numerical methods a possible approach is sketched up to
investigate the situation.... | 1 | 0 | 1 | 0 | 0 | 0 |
The MUSE view of He 2-10: no AGN ionization but a sparkling starburst | We study the physical and dynamical properties of the ionized gas in the
prototypical HII galaxy Henize 2-10 using MUSE integral field spectroscopy. The
large scale dynamics is dominated by extended outflowing bubbles, probably the
results of massive gas ejection from the central star forming regions. We
derive a mas... | 0 | 1 | 0 | 0 | 0 | 0 |
Modeling Oral Multispecies Biofilm Recovery After Antibacterial Treatment | Recovery of multispecies oral biofilms is investigated following treatment by
chlorhexidine gluconate (CHX), iodine-potassium iodide (IPI) and Sodium
hypochlorite (NaOCl) both experimentally and theoretically. Experimentally,
biofilms taken from two donors were exposed to the three antibacterial
solutions (irrigants)... | 0 | 0 | 0 | 0 | 1 | 0 |
On constant multi-commodity flow-cut gaps for directed minor-free graphs | The multi-commodity flow-cut gap is a fundamental parameter that affects the
performance of several divide \& conquer algorithms, and has been extensively
studied for various classes of undirected graphs. It has been shown by Linial,
London and Rabinovich \cite{linial1994geometry} and by Aumann and Rabani
\cite{auman... | 1 | 0 | 0 | 0 | 0 | 0 |
Molecular Gas during the Post-Starburst Phase: Low Gas Fractions in Green Valley Seyfert Post-Starburst Galaxies | Post-starbursts (PSBs) are candidate for rapidly transitioning from
star-bursting to quiescent galaxies. We study the molecular gas evolution of
PSBs at z ~ 0.03 - 0.2. We undertook new CO (2-1) observations of 22 Seyfert
PSBs candidates using the ARO Submillimeter Telescope. This sample complements
previous samples ... | 0 | 1 | 0 | 0 | 0 | 0 |
Bit-Reversible Version of Milne's Fourth-Order Time-Reversible Integrator for Molecular Dynamics | We point out that two of Milne's fourth-order integrators are well-suited to
bit-reversible simulations. The fourth-order method improves on the accuracy of
Levesque and Verlet's algorithm and simplifies the definition of the velocity
$v$ and energy $e = (q^2 + v^2)/2$ . ( We use this one-dimensional oscillator
probl... | 0 | 1 | 0 | 0 | 0 | 0 |
Solvable Hydrodynamics of Quantum Integrable Systems | The conventional theory of hydrodynamics describes the evolution in time of
chaotic many-particle systems from local to global equilibrium. In a quantum
integrable system, local equilibrium is characterized by a local generalized
Gibbs ensemble or equivalently a local distribution of pseudo-momenta. We study
time evo... | 0 | 1 | 0 | 0 | 0 | 0 |
Compressed sensing and optimal denoising of monotone signals | We consider the problems of compressed sensing and optimal denoising for
signals $\mathbf{x_0}\in\mathbb{R}^N$ that are monotone, i.e.,
$\mathbf{x_0}(i+1) \geq \mathbf{x_0}(i)$, and sparsely varying, i.e.,
$\mathbf{x_0}(i+1) > \mathbf{x_0}(i)$ only for a small number $k$ of indices
$i$. We approach the compressed sen... | 1 | 0 | 1 | 1 | 0 | 0 |
On minimax nonparametric estimation of signal in Gaussian noise | For the problem of nonparametric estimation of signal in Gaussian noise we
point out the strong asymptotically minimax estimators on maxisets for linear
estimators (see \cite{ker93,rio}). It turns out that the order of rates of
convergence of Pinsker estimator on this maxisets is worse than the order of
rates of conv... | 0 | 0 | 1 | 1 | 0 | 0 |
Implicit Bias of Gradient Descent on Linear Convolutional Networks | We show that gradient descent on full-width linear convolutional networks of
depth $L$ converges to a linear predictor related to the $\ell_{2/L}$ bridge
penalty in the frequency domain. This is in contrast to linearly fully
connected networks, where gradient descent converges to the hard margin linear
support vector... | 0 | 0 | 0 | 1 | 0 | 0 |
Oxidation of clofibric acid in aqueous solution using a non-thermal plasma discharge or gamma radiation | In this work, we study degradation of clofibric acid (CFA) in aqueous
solution using either ionizing radiation from a $^{60}$Co source or a
non-thermal plasma produced by discharges in the air above the solution. The
results obtained with the two technologies are compared in terms of
effectiveness of CFA degradation ... | 0 | 1 | 0 | 0 | 0 | 0 |
Quenching current by flux-flow instability in iron-chalcogenides thin films | The stability against quench is one of the main issue to be pursued in a
superconducting material which should be able to perform at very high levels of
current densities. Here we focus on the connection between the critical current
$I_c$ and the quenching current $I^*$ associated to the so-called flux-flow
instabili... | 0 | 1 | 0 | 0 | 0 | 0 |
New cardinality estimation algorithms for HyperLogLog sketches | This paper presents new methods to estimate the cardinalities of data sets
recorded by HyperLogLog sketches. A theoretically motivated extension to the
original estimator is presented that eliminates the bias for small and large
cardinalities. Based on the maximum likelihood principle a second unbiased
method is deri... | 1 | 0 | 0 | 0 | 0 | 0 |
The EUSO@TurLab Project | The TurLab facility is a laboratory, equipped with a 5 m diameter and 1 m
depth rotating tank, located in the Physics Department of the University of
Turin. The tank has been built mainly to study problems where system rotation
plays a key role in the fluid behaviour such as in atmospheric and oceanic
flows at differ... | 0 | 1 | 0 | 0 | 0 | 0 |
A finite element method framework for modeling rotating machines with superconducting windings | Electrical machines employing superconductors are attractive solutions in a
variety of application domains. Numerical models are powerful and necessary
tools to optimize their design and predict their performance. The
electromagnetic modeling of superconductors by finite-element method (FEM) is
usually based on a pow... | 0 | 1 | 0 | 0 | 0 | 0 |
Triangular Decomposition of Matrices in a Domain | Deterministic recursive algorithms for the computation of matrix triangular
decompositions with permutations like LU and Bruhat decomposition are presented
for the case of commutative domains. This decomposition can be considered as a
generalization of LU and Bruhat decompositions, because they both may be easily
obt... | 1 | 0 | 0 | 0 | 0 | 0 |
Practical Bayesian Optimization for Transportation Simulators | We provide a method to solve optimization problem when objective function is
a complex stochastic simulator of an urban transportation system. To reach this
goal, a Bayesian optimization framework is introduced. We show how the choice
of prior and inference algorithm effect the outcome of our optimization
procedure. ... | 0 | 0 | 0 | 1 | 0 | 0 |
The Ising distribution as a latent variable model | It is shown that the Ising distribution can be treated as a latent variable
model, where a set of N real-valued, correlated random variables are drawn and
used to generate N binary spins independently. This allows to approximate the
Ising distribution by a simpler model where the latent variables follow a
multivariat... | 0 | 0 | 0 | 1 | 1 | 0 |
Applying DCOP to User Association Problem in Heterogeneous Networks with Markov Chain Based Algorithm | Multi-agent systems (MAS) is able to characterize the behavior of individual
agent and the interaction between agents. Thus, it motivates us to leverage the
distributed constraint optimization problem (DCOP), a framework of modeling
MAS, to solve the user association problem in heterogeneous networks (HetNets).
Two i... | 1 | 0 | 0 | 0 | 0 | 0 |
Linear growth of streaming instability in pressure bumps | Streaming instability is a powerful mechanism which concentrates dust grains
in pro- toplanetary discs, eventually up to the stage where they collapse
gravitationally and form planetesimals. Previous studies inferred that it
should be ineffective in viscous discs, too efficient in inviscid discs, and
may not operate ... | 0 | 1 | 0 | 0 | 0 | 0 |
On the Gevrey regularity for Sums of Squares of vector fields, study of some models | The micro-local Gevrey regularity of a class of "sums of squares" with real
analytic coefficients is studied in detail. Some partial regularity result is
also given.
| 0 | 0 | 1 | 0 | 0 | 0 |
Structure theorems for star-commuting power partial isometries | We give a new formulation and proof of a theorem of Halmos and Wallen on the
structure of power partial isometries on Hilbert space. We then use this
theorem to give a structure theorem for a finite set of partial isometries
which star-commute: each operator commutes with the others and with their
adjoints.
| 0 | 0 | 1 | 0 | 0 | 0 |
On free Gelfand--Dorfman--Novikov superalgebras and a PBW type theorem | We construct a linear basis of a free GDN superalgebra over a field of
characteristic $\neq 2$.
As applications, we prove a PBW theorem, that is, any GDN superalgebra can be
embedded into its universal enveloping commutative associative differential
superalgebra. An Engel theorem under some assumptions is given.
| 0 | 0 | 1 | 0 | 0 | 0 |
An inexact iterative Bregman method for optimal control problems | In this article we investigate an inexact iterative regularization method
based on generalized Bregman distances of an optimal control problem with
control constraints. We show robustness and convergence of the inexact Bregman
method under a regularity assumption, which is a combination of a source
condition and a re... | 0 | 0 | 1 | 0 | 0 | 0 |
Mixture Models in Astronomy | Mixture models combine multiple components into a single probability density
function. They are a natural statistical model for many situations in
astronomy, such as surveys containing multiple types of objects, cluster
analysis in various data spaces, and complicated distribution functions. This
chapter in the CRC H... | 0 | 1 | 0 | 1 | 0 | 0 |
Safe Medicine Recommendation via Medical Knowledge Graph Embedding | Most of the existing medicine recommendation systems that are mainly based on
electronic medical records (EMRs) are significantly assisting doctors to make
better clinical decisions benefiting both patients and caregivers. Even though
the growth of EMRs is at a lighting fast speed in the era of big data, content
limi... | 1 | 0 | 0 | 0 | 0 | 0 |
Keeping the Bad Guys Out: Protecting and Vaccinating Deep Learning with JPEG Compression | Deep neural networks (DNNs) have achieved great success in solving a variety
of machine learning (ML) problems, especially in the domain of image
recognition. However, recent research showed that DNNs can be highly vulnerable
to adversarially generated instances, which look seemingly normal to human
observers, but co... | 1 | 0 | 0 | 0 | 0 | 0 |
Numerical Simulation of Bloch Equations for Dynamic Magnetic Resonance Imaging | Magnetic Resonance Imaging (MRI) is a widely applied non-invasive imaging
modality based on non-ionizing radiation which gives excellent images and soft
tissue contrast of living tissues. We consider the modified Bloch problem as a
model of MRI for flowing spins in an incompressible flow field. After
establishing the... | 1 | 0 | 1 | 0 | 0 | 0 |
End-to-End Waveform Utterance Enhancement for Direct Evaluation Metrics Optimization by Fully Convolutional Neural Networks | Speech enhancement model is used to map a noisy speech to a clean speech. In
the training stage, an objective function is often adopted to optimize the
model parameters. However, in most studies, there is an inconsistency between
the model optimization criterion and the evaluation criterion on the enhanced
speech. Fo... | 1 | 0 | 0 | 1 | 0 | 0 |
The connectivity of graphs of graphs with self-loops and a given degree sequence | `Double edge swaps' transform one graph into another while preserving the
graph's degree sequence, and have thus been used in a number of popular Markov
chain Monte Carlo (MCMC) sampling techniques. However, while double edge-swaps
can transform, for any fixed degree sequence, any two graphs inside the classes
of sim... | 1 | 1 | 1 | 0 | 0 | 0 |
The role of the background in past and future X-ray missions | Background has played an important role in X-ray missions, limiting the
exploitation of science data in several and sometimes unexpected ways. In this
presentation I review past X-ray missions focusing on some important lessons we
can learn from them. I then go on discussing prospects for overcoming
background relate... | 0 | 1 | 0 | 0 | 0 | 0 |
Securing Manufacturing Intelligence for the Industrial Internet of Things | Widespread interest in the emerging area of predictive analytics is driving
industries such as manufacturing to explore new approaches to the collection
and management of data provided from Industrial Internet of Things (IIoT)
devices. Often, analytics processing for Business Intelligence (BI) is an
intensive task, a... | 1 | 0 | 0 | 0 | 0 | 0 |
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