text stringlengths 1 3.65k | source stringlengths 15 79 |
|---|---|
copula is a powerful tool to model multivariate data. we propose the modelling of intraday financial returns of multiple assets through copula. the problem originates due to the asynchronous nature of intraday financial data. we propose a consistent estimator of the correlation coefficient in case of elliptical copula ... | arxiv:1904.10182 |
in this article, the author provides full details of the proof of the concordance / isotopy problem. the first published proof, [ 5 ], accomplished this task only partially since there was an error, see the erratum [ 6 ], which damaged the main argument of [ 5, theorem 2. 9 ], and, consequently, the proof of [ 5, theor... | arxiv:1604.07466 |
the ensemble of light - cone fock wavefunctions $ \ { \ psi _ { n / h } ( x _ i, \ vec k _ { \ perp i }, \ lambda _ i ) \ } $ provides a conceptual basis for representing physical hadrons and nuclei in terms of their fundamental quark and gluon degrees of freedom. a number of applications of the light - cone formalism ... | arxiv:hep-ph/9706236 |
we study vortex patterns in a prototype nonlinear optical system : counterpropagating laser beams in a photorefractive crystal, with or without the background photonic lattice. the vortices are effectively planar and described by the winding number and the " flavor " index, stemming from the fact that we have two paral... | arxiv:1701.03451 |
the triangular - lattice heisenberg antiferromagnet ( haf ) is known to carry topological z _ 2 vortex excitations which form a gas at finite temperatures. here we show that the spin - orbit interaction, introduced via a kitaev term in the exchange hamiltonian, condenses these vortices into a triangular $ z _ 2 $ vorte... | arxiv:1209.5895 |
in this paper, we propose a high - order energy - conserving semi - lagrangian discontinuous galerkin ( ecsldg ) method for the vlasov - ampere system. the method employs a semi - lagrangian discontinuous galerkin scheme for spatial discretization of the vlasov equation, achieving high - order accuracy while removing t... | arxiv:2504.20813 |
we propose a coin - flip protocol which yields a string of strong, random coins and is fully simulatable against poly - sized quantum adversaries on both sides. it can be implemented with quantum - computational security without any set - up assumptions, since our construction only assumes mixed commitment schemes whic... | arxiv:1102.0887 |
using high spatial and temporal data from the \ emph { solar dynamics observatory } ( \ emph { sdo } ) and the \ emph { interface region imaging spectrograph } ( \ emph { iris } ), several observational signatures of magnetic reconnection in the course of magnetic flux cancellation are presented, including two loop - l... | arxiv:1806.04857 |
residential segregation is a wide - spread phenomenon that can be observed in almost every major city. in these urban areas residents with different racial or socioeconomic background tend to form homogeneous clusters. schelling ' s famous agent - based model for residential segregation explains how such clusters can f... | arxiv:2005.02752 |
in the near future there will be the request for very large liquid xenon ( lxe ) detectors for dark matter ( dm ) searches in the 50 - ton range. to avoid an impractically long, single drift space of a dual - phase detector, it seems beneficial to use the single - phase technique. since electrons then can drift in any ... | arxiv:2107.07798 |
has evolved from the generation i, proof - of concept, reactors of the 1950s and 1960s, to generation ii, generation iii, and generation iv concepts thermal hydraulics and heat transfer. in a typical nuclear power plant, heat generates steam that drives a steam turbine and a generator that produces electricity material... | https://en.wikipedia.org/wiki/Nuclear_engineering |
we consider a class of monotone operators which are appropriate for symbolic representation and manipulation within a computer algebra system. various structural properties of the class ( e. g., closure under taking inverses, resolvents ) are investigated as well as the role played by maximal monotonicity within the cl... | arxiv:1703.05946 |
high dynamic range ( hdr ) imaging is vital for capturing the full range of light tones in scenes, essential for computer vision tasks such as autonomous driving. standard commercial imaging systems face limitations in capacity for well depth, and quantization precision, hindering their hdr capabilities. modulo imaging... | arxiv:2504.04228 |
according to the hamiltonian formalism, nonrelativistic phase space may be considered as an arena of physics, with momentum and position treated as independent variables. invariance of x ^ 2 + p ^ 2 constitutes then a natural generalization of ordinary rotational invariance. we consider dirac - like linearization of th... | arxiv:0901.2896 |
we study the composition of bivariate l \ ' evy process with bivariate inverse subordinator. the explicit expressions for its dispersion and auto correlation matrices are obtained. also, the time - changed two parameter l \ ' evy processes with rectangular increments are studied. we introduce some time - changed varian... | arxiv:2503.04166 |
the $ \ lambda $ - exponential family generalizes the standard exponential family via a generalized convex duality motivated by optimal transport. it is the constant - curvature analogue of the exponential family from the information - geometric point of view, but the development of computational methodologies is still... | arxiv:2505.03582 |
we present the results from the rxte observations of cygnus x - 1 in its high state. in the energy range of 2 - 200 kev, the observed x - ray spectrum can be described by a model consisting of a soft blackbody component and a broken power - law with a high energy cutoff. the low energy spectrum ( below about 11 kev ) v... | arxiv:astro-ph/9610071 |
active matter systems are inherently out of equilibrium and break the detailed balance ( db ) at the microscopic scale, exhibiting vital collective phenomena such as motility - induced phase separation ( mips ). here, we introduce a coarse - grained mapping method to probe db breaking in the density - energy phase spac... | arxiv:2211.16084 |
deep learning approaches to 3d shape segmentation are typically formulated as a multi - class labeling problem. existing models are trained for a fixed set of labels, which greatly limits their flexibility and adaptivity. we opt for top - down recursive decomposition and develop the first deep learning model for hierar... | arxiv:1903.00709 |
let $ \ mathbb { f } $ be a field and $ f : \ mathfrak { s } _ n \ rightarrow \ mathbb { f } \ setminus \ { 0 \ } $ be an arbitrary map. the schur matrix functional associated to $ f $ is defined as $ m \ in \ text { m } _ n ( \ mathbb { f } ) \ mapsto \ widetilde { f } ( m ) : = \ sum _ { \ sigma \ in \ mathfrak { s }... | arxiv:1807.06264 |
we present theoretical and experimental data on the magneto - optical contributions to the complex refractive index in the extreme ultraviolet ( xuv ) range covering the 3p resonances of fe, co, and ni. comparing the spectra from density functional theory with magnetic circular dichroism measurements we find that many ... | arxiv:1812.06703 |
the simplest decomposition of a toffoli gate acting on three qubits requires { \ em five } 2 - qubit gates. if we restrict ourselves to controlled - sign ( or controlled - not ) gates this number climbs to six. we show that the number of controlled - sign gates required to implement a toffoli gate can be reduced to jus... | arxiv:0806.0654 |
early dark energy ( ede ) relies on scalar field dynamics to resolve the hubble tension, by boosting the pre - recombination length scales and thereby raising the cmb - inferred value of the hubble constant into agreement with late universe probes. however, the collateral effect of scalar field microphysics on the line... | arxiv:2202.08291 |
to guide the design of better iterative optimisation heuristics, it is imperative to understand how inherent structural biases within algorithm components affect the performance on a wide variety of search landscapes. this study explores the impact of structural bias in the modular covariance matrix adaptation evolutio... | arxiv:2404.17323 |
we determine the limiting distribution of the normalized euler factors of an abelian surface a defined over a number field k when a is isogenous to the square of an elliptic curve defined over k with complex multiplication. as an application, we prove the sato - tate conjecture for jacobians of q - twists of the curves... | arxiv:1203.1476 |
in this paper we propose a new method of estimation for discrete choice demand models when individual level data are available. the method employs a two - step procedure. step 1 predicts the choice probabilities as functions of the observed individual level characteristics. step 2 estimates the structural parameters of... | arxiv:2010.08016 |
for the fractional diffusion - wave equation with the caputo - dzhrbashyan fractional derivative of order $ \ alpha \ in ( 1, 2 ) $ with respect to the time variable, we prove an analog of the principle of limiting amplitude ( well - known for the wave equation and some other hyperbolic equations ) and a pointwise stab... | arxiv:1404.7612 |
for the majority of the machine learning community, the expensive nature of collecting high - quality human - annotated data and the inability to efficiently finetune very large state - of - the - art pretrained models on limited compute are major bottlenecks for building models for new tasks. we propose a zero - shot ... | arxiv:2211.02178 |
given the monomial ideal i = ( x _ 1 ^ { { \ alpha } _ 1 },..., x _ { n } ^ { { \ alpha } _ { n } } ) \ subset k [ x _ 1,..., x _ { n } ] where { \ alpha } _ { i } are positive integers and k a field and let j be the integral closure of i. it is a challenging problem to translate the question of the normality of j into... | arxiv:1009.0786 |
a warped space model with a constant boundary superpotential has been an efficient model both to break supersymmetry and to stabilize the radius, when hypermultiplet, compensator and radion multiplet are taken into account. in such a model of the radius stabilization, the radion and moduli masses, the gravitino mass an... | arxiv:hep-th/0612071 |
we introduce a new number - theoretic spin chain and explore its thermodynamics and connections with number theory. the energy of each spin configuration is defined in a translation - invariant manner in terms of the farey fractions, and is also expressed using pauli matrices. we prove that the free energy exists and e... | arxiv:cond-mat/9808182 |
we provide necessary and sufficient conditions for hypercontractivity of the minima of nonnegative, i. i. d. random variables and of both the maxima of minima and the minima of maxima for such r. v. ' s. it turns out that the idea of hypercontractivity for minima is closely related to small ball probabilities and gauss... | arxiv:math/9607209 |
solutions are investigated for 1d linear counter - current spontaneous imbibition ( cousi ). the diffusion problem is scaled to depend only on a normalized coefficient { \ lambda } _ n ( s _ n ) with mean 1 and no other parameters. a dataset of 5500 functions { \ lambda } _ n was generated using combinations of ( mixed... | arxiv:2211.07571 |
numerical simulation of superconducting devices is a powerful tool for understanding the principles of their work and improving their design. we present a new pseudospectral method for two - dimensional magnetization and transport current superconducting strip problems with an arbitrary current - voltage relation, spat... | arxiv:2108.10654 |
the deployment of generative ai ( genai ) models raises significant fairness concerns, addressed in this paper through novel characterization and enforcement techniques specific to genai. unlike standard ai performing specific tasks, genai ' s broad functionality requires " conditional fairness " tailored to the contex... | arxiv:2404.16663 |
the direct collapse model of supermassive black hole seed formation provides an attractive solution to the origin of the quasars now routinely observed at $ z \ gtrsim 6 $. we use the adaptive mesh refinement code enzo to simulate the collapse of gas at high redshift, including a nine species chemical model of h, he, a... | arxiv:1407.4472 |
in this article, we construct the scalar - diquark - scalar - diquark - antiquark type current to study the ground state triply charmed pentaquark states with the qcd sum rules. we separate the contributions of the negative - parity and positive parity triply charmed pentaquark states explicitly, and take the energy sc... | arxiv:1801.08419 |
in this article, we use deformation theory of galois representations valued in the symplectic group of degree four to prove a freeness result for the cohomology of certain quaternionic unitary shimura variety over the universal deformation ring for certain type of residual representation satisfying a property called ri... | arxiv:2204.07807 |
materials. | arxiv:1908.07194 |
reverberation mapping of nearby active galactic nuclei has led to estimates of broad - line - region ( blr ) sizes and central - object masses for some 37 objects to date. however, successful reverberation mapping has yet to be performed for quasars of either high luminosity ( above l _ opt ~ 10 ^ { 46 } erg / s ) or h... | arxiv:astro-ph/0612722 |
we report measurements of the critical temperature of ybco - co doped ybco superconductor - normal bilayer films. depending on the morphology of the s - n interface, the coupling between s and n layers can be turned on to depress the critical temperature of s by tens of degrees, or turned down so the layers appear almo... | arxiv:cond-mat/9803361 |
in this paper, we study the combinatorics of congruence subgroups of the modular group by generalizing results obtained in the non - modular case. for this, we define a notion of irreducible solutions from which we can build all the solutions. in particular, we give a particular solution, irreducible for any $ n $, and... | arxiv:2006.01470 |
regular satellites of giant planets are formed by accretion of solid bodies in circumplanetary disks. planetesimals that are moving on heliocentric orbits and are sufficiently large to be decoupled from the flow of the protoplanetary gas disk can be captured by gas drag from the circumplanetary disk. in the present wor... | arxiv:1703.07917 |
we combine two recently established methods, the extended coupled - ladder approximation ( ecla ) [ phys. rev. b 95, 035122 ( 2017 ) ] and a dynamic keldysh functional renormalization group ( frg ) approach for inhomogeneous systems [ phys. rev. lett. 119, 196401 ( 2017 ) ] to tackle the problem of finite - ranged inte... | arxiv:1912.02700 |
tabular reinforcement learning methods cannot operate directly on continuous state spaces. one solution for this problem is to partition the state space. a good partitioning enables generalization during learning and more efficient exploitation of prior experiences. consequently, the learning process becomes faster and... | arxiv:2409.16791 |
in this paper we propose a neural message passing approach to augment an input 3d indoor scene with new objects matching their surroundings. given an input, potentially incomplete, 3d scene and a query location, our method predicts a probability distribution over object types that fit well in that location. our distrib... | arxiv:1907.11308 |
predicting loan eligibility with high accuracy remains a significant challenge in the finance sector. accurate predictions enable financial institutions to make informed decisions, mitigate risks, and effectively adapt services to meet customer needs. however, the complexity and the high - dimensional nature of financi... | arxiv:2412.03158 |
trajectory optimization is an essential tool for generating efficient and dynamically consistent gaits in legged locomotion. this paper explores the indirect method of trajectory optimization, emphasizing its application in creating optimal periodic gaits for legged systems and contrasting it with the more commonly use... | arxiv:2410.09512 |
the existence of galaxy intrinsic clustering severely hampers the weak lensing reconstruction from cosmic magnification. in paper i \ citep { yang2011 }, we proposed a minimal variance estimator to overcome this problem. by utilizing the different dependences of cosmic magnification and galaxy intrinsic clustering on g... | arxiv:1309.2474 |
in this research work, security concepts are formalized in steganography, and the common paradigms based on information theory are replaced by another ones inspired from cryptography, more practicable are closer than what is usually done in other cryptographic domains. these preliminaries lead to a first proof of a cry... | arxiv:1706.08752 |
speaker counting is the task of estimating the number of people that are simultaneously speaking in an audio recording. for several audio processing tasks such as speaker diarization, separation, localization and tracking, knowing the number of speakers at each timestep is a prerequisite, or at least it can be a strong... | arxiv:2101.01977 |
iterating on creating pixel art character sprite sheets is essential to the game development process. however, it can take a lot of effort until the final versions containing different poses and animation clips are achieved. this paper investigates using conditional generative adversarial networks to aid the designers ... | arxiv:2208.06413 |
in this paper, we study the leader - following consensus problem of multiple euler - lagrange systems subject to an uncertain leader system. we first establish an adaptive distributed observer for a neutrally stable linear leader system whose system matrix is not known exactly. under standard assumptions, this adaptive... | arxiv:1909.07851 |
much previous work has been done in attempting to identify humor in text. in this paper we extend that capability by proposing a new task : assessing whether or not a joke is humorous. we present a novel way of approaching this problem by building a model that learns to identify humorous jokes based on ratings gleaned ... | arxiv:1909.00252 |
we investigate the equation of state ( eos ) of classical systems having 300 and 512 particles confined in a box with periodic boundary conditions. we show that such a system, independently on the number of particles investigated, has a critical density of about 1 / 3 the ground state density and a critical temperature... | arxiv:nucl-th/9512019 |
work - related transportation incidents significantly impact urban mobility and productivity. these incidents include traffic crashes, collisions between vehicles, and falls that occurred during commuting or work - related transportation ( e. g., falling while getting off a bus during the morning commute or while ridin... | arxiv:2408.00687 |
we have used sensitive archival data from the infrared space observatory ( iso ) to make maps of the edge - on low sfr galaxy, ngc 5907, in 6 different mir bands : lw2, lw5, lw6, lw7, lw8, and lw10, covering the spectrum from 6. 5 to 15. 0 microns and including several narrow bands that isolate the infrared aromatic sp... | arxiv:astro-ph/0509726 |
agn masses can be estimated by " single epoch " spectral measurements through a mass - luminosity - linewidth relation calibrated by echo mapping measurements of a reference sample of low redshift ( $ z < 0. 3 $ ) and low luminosity ( $ m _ b > - 26 $ ) agns. to analyze the possible dependence of this relation on lumin... | arxiv:astro-ph/0408075 |
implicit neural representation ( inr ), in combination with geometric rendering, has recently been employed in real - time dense rgb - d slam. despite active research endeavors being made, there lacks a unified protocol for fair evaluation, impeding the evolution of this area. in this work, we establish, to our knowled... | arxiv:2403.19473 |
chameleon fields are quantum fields with an increasing mass as a function of the matter density of the environment. recently chameleon fields have been exploited to solve the cosmological constant problem in the modified fujii ' s model - mfm [ phys rev d82 ( 2010 ) 044006 ]. however, gravity has been treated basically... | arxiv:1607.04195 |
being able to reduce the size of a rheometer down to the micron scale is a unique opportunity to explore the mechanical response of expensive and / or confined liquids and gels. to this aim, we synthesize micron size wires with magnetic properties and examine the possibility of using them as microrheology probes. in th... | arxiv:1606.06667 |
we study a simple stochastic differential equation that models the dispersion of close heavy particles moving in a turbulent flow. in one and two dimensions, the model is closely related to the one - dimensional stationary schroedinger equation in a random delta - correlated potential. the ergodic properties of the dis... | arxiv:1009.0782 |
we present a new approach for stably evolving general relativistic magnetohydrodynamic ( grmhd ) simulations in regions where the magnetization $ \ sigma = b ^ 2 / \ rho c ^ 2 $ becomes large. grmhd codes typically struggle to evolve plasma above $ \ sigma \ approx100 $ in simulations of black hole accretion. to ensure... | arxiv:2404.01471 |
lmntal is a programming and modeling language based on hierarchical graph rewriting that uses logical variables to represent connectivity and membranes to represent hierarchy. on the theoretical side, it allows logical interpretation based on intuitionistic linear logic ; on the practical side, its full - fledged imple... | arxiv:2409.11015 |
the carbon footprint associated with large language models ( llms ) is a significant concern, encompassing emissions from their training, inference, experimentation, and storage processes, including operational and embodied carbon emissions. an essential aspect is accurately estimating the carbon impact of emerging llm... | arxiv:2309.14393 |
observations with the extreme ultraviolet explorer satellite are purported to show extreme ultraviolet ( euv ) and soft x - ray excesses in several clusters of galaxies ( bonamente, lieu & mittaz 2001 ). if interpreted as thermal emission, this would imply the presence of warm ( t \ sim 10 ^ 6 k ) gas in these clusters... | arxiv:astro-ph/0104422 |
for n > 2, we shall show that the group aut ( ns ( m ) ) of simplicial automorphisms of the complex ns ( m ) of non - separating embedded spheres in the manifold m, connected sum of n copies of s ^ 2 x s ^ 1, isomorphic to the group out ( f _ n ) of outer automorphisms of the free group f _ n, where $ f _ n $ is identi... | arxiv:1204.0338 |
we propose a muon - proton collider with asymmetrical multi - tev beam energies and integrated luminosities of $ 0. 1 - 1 $ ab $ ^ { - 1 } $. with its large center - of - mass energies and yet small standard model background, such a machine can not only improve electroweak precision measurements but also probe new phys... | arxiv:2101.10476 |
we report on the time dependent solutions of the $ q - $ generalized schr \ " odinger equation proposed by nobre et al. [ phys. rev. lett. 106, 140601 ( 2011 ) ]. here we investigate the case of two free particles and also the case where two particles were subjected to a moshinsky - like potential with time dependent c... | arxiv:1502.03381 |
backdoor attacks compromise the integrity and reliability of machine learning models by embedding a hidden trigger during the training process, which can later be activated to cause unintended misbehavior. we propose a novel backdoor mitigation approach via machine unlearning to counter such backdoor attacks. the propo... | arxiv:2407.07662 |
schwarzschild black holes with quantum corrections are studied under scalar field perturbations and electromagnetic field perturbations to analyze the effect of the correction term on the potential function and quasinormal mode ( qnm ). in classical general relativity, spacetime is continuous and there is no existence ... | arxiv:2204.11262 |
in geometry processing, numerical optimization methods often involve solving sparse linear systems of equations. these linear systems have a structure that strongly resembles to adjacency graphs of the underlying mesh. we observe how classic linear solvers behave on this specific type of problems. for the sake of simpl... | arxiv:1510.01118 |
recent swift observations suggest that the traditional long vs. short grb classification scheme does not always associate grbs to the two physically motivated model types, i. e. type ii ( massive star origin ) vs. type i ( compact star origin ). we propose a new phenomenological classification method of grbs by introdu... | arxiv:1001.0598 |
prior information often takes the form of parameter constraints. bayesian methods include such information through prior distributions having constrained support. by using posterior sampling algorithms, one can quantify uncertainty without relying on asymptotic approximations. however, sharply constrained priors are ( ... | arxiv:1801.01525 |
mkn 3 is a seyfert 2 galaxy that is widely regarded as an exemplary compton - thick agn. we study the suzaku x - ray spectrum using models of the x - ray reprocessor that self - consistently account for the fe k $ \ alpha $ fluorescent emission line and the associated compton - scattered, or reflection, continuum. we f... | arxiv:1508.07685 |
recent observations have indicated the existence of dust in high - redshift galaxies, however, the dust properties in them are still unknown. here we present theoretical constraints on dust properties in lyman break galaxies ( lbgs ) at z = 3 by post - processing a cosmological smoothed particle hydrodynamics simulatio... | arxiv:1309.7389 |
the special issue contains a monograph by m. popel, in which the methodical foundations of the formation of professional competences of mathematics teachers in institutions of higher education of ukraine are considered ; the place of cloud service cocalc in the system of teaching mathematical disciplines is specified ;... | arxiv:1902.10507 |
strokes are a leading cause of disability, with many experiencing difficulty in recovering arm movement, particularly hand function and grasping ability. there is currently no objective measure of movement quality, and without it, rehabilitative interventions remain at best estimations of the underlying neural structur... | arxiv:2305.13524 |
in support of the main conjecture. | arxiv:0908.3667 |
an accurate force calculation with the poisson - boltzmann equation is challenging, as it requires the electric field on the molecular surface. here, we present a calculation of the electric field on the solute - solvent interface that is exact for piece - wise linear variations of the potential and analyze four differ... | arxiv:2301.05019 |
we perform a detailed study of linear perturbations of the jmart family of non - bps smooth horizonless solutions of type iib supergravity beyond the near - decoupling limit. in addition to the unstable quasi normal modes ( qnms ) responsible for the ergo - region instability, already studied in the literature, we find... | arxiv:2305.00865 |
illusions of causality occur when people develop the belief that there is a causal connection between two variables with no supporting evidence. this cognitive bias has been proposed to underlie many societal problems including social prejudice, stereotype formation, misinformation and superstitious thinking. in this r... | arxiv:2410.11684 |
one - shot action recognition allows the recognition of human - performed actions with only a single training example. this can influence human - robot - interaction positively by enabling the robot to react to previously unseen behaviour. we formulate the one - shot action recognition problem as a deep metric learning... | arxiv:2012.13823 |
the ability to predict the long - term impact of a scientific article soon after its publication is of great value towards accurate assessment of research performance. in this work we test the hypothesis that good predictions of long - term citation counts can be obtained through a combination of a publication ' s earl... | arxiv:1909.08907 |
accurate left atrium ( la ) segmentation from pre - operative scans is crucial for diagnosing atrial fibrillation, treatment planning, and supporting surgical interventions. while deep learning models are key in medical image segmentation, they often require extensive manually annotated data. foundation models trained ... | arxiv:2411.09598 |
chern - simons theory on a closed contact three - manifold is studied when the lie group for gauge transformations is compact, connected and abelian. a rigorous definition of an abelian chern - simons partition function is derived using the faddeev - popov gauge fixing method. a symplectic abelian chern - simons partit... | arxiv:1208.1724 |
while the body of research focusing on intelligent environments ( ies ) programming by adults is steadily growing, informed insights about children as programmers of such environments are limited. previous work already established that young children can learn programming basics. yet, there is still a need to investiga... | arxiv:2105.04904 |
in this paper, we present a non - parametric structured latent variable model for image generation, called np - draw, which sequentially draws on a latent canvas in a part - by - part fashion and then decodes the image from the canvas. our key contributions are as follows. 1 ) we propose a non - parametric prior distri... | arxiv:2106.13435 |
we study the natural extended - variable formulation for the disjunction of $ n + 1 $ polytopes in $ \ mathbb { r } ^ d $. we demonstrate that the convex hull $ d $ in the natural extended - variable space $ \ mathbb { r } ^ { d + n } $ is given by full optimal big - m lifting ( i ) when $ d \ leq 2 $ ( and that it is ... | arxiv:2407.15244 |
we address the problem of how to " obfuscate " texts by removing stylistic clues which can identify authorship, whilst preserving ( as much as possible ) the content of the text. in this paper we combine ideas from " generalised differential privacy " and machine learning techniques for text processing to model privacy... | arxiv:1811.10256 |
focusing on the bipartite stable marriage problem, we investigate different robustness measures related to stable matchings. we analyze the computational complexity of computing them and analyze their behavior in extensive experiments on synthetic instances. for instance, we examine whether a stable matching is guarant... | arxiv:2408.09160 |
nanofluidics is pivotal in fundamental research and diverse applications, from water desalination to energy harvesting and biological analysis. dynamically manipulating nanofluidic properties, such as diffusion and friction, presents an avenue for advancement in this field. twisted bilayer graphene, particularly at the... | arxiv:2312.06830 |
diffusion models can be used as learned priors for solving various inverse problems. however, most existing approaches are restricted to linear inverse problems, limiting their applicability to more general cases. in this paper, we build upon denoising diffusion restoration models ( ddrm ) and propose a method for solv... | arxiv:2209.11888 |
the biomedical field relies heavily on concept linking in various areas such as literature mining, graph alignment, information retrieval, question - answering, data, and knowledge integration. although large language models ( llms ) have made significant strides in many natural language processing tasks, their effecti... | arxiv:2307.01137 |
the concepts of the perfect system and degeneracy are introduced. a special symmetry is found which is related to the entropy invariant. the inversion relation of system is obtained which is used to give the oppsite direction of time to classical sencond law of thermodanymics. the nature of time is discussed together w... | arxiv:quant-ph/9605019 |
the largest eigenvalue of the hessian, or sharpness, of neural networks is a key quantity to understand their optimization dynamics. in this paper, we study the sharpness of deep linear networks for univariate regression. minimizers can have arbitrarily large sharpness, but not an arbitrarily small one. indeed, we show... | arxiv:2405.13456 |
we prove that spacetime is locally inertial at points of shock wave collision in general relativity. the result applies for collisions between shock waves coming from different characteristic families, in spherically symmetric spacetimes. we give a constructive proof that there exist coordinate transformations which ra... | arxiv:1409.5060 |
we show that a canonical, minimally coupled scalar field which is non - self interacting and massless is equivalent to a null dust fluid ( whether it is a test or a gravitating field ), in a spacetime region in which its gradient is null. under similar conditions, the gravitating and nonminimally coupled brans - dicke ... | arxiv:1812.06457 |
in a broad class of scenarios, inflation is followed by an extended era of matter - dominated expansion during which the inflaton condensate is nonrelativistic on subhorizon scales. during this phase density perturbations grow to the point of nonlinearity and collapse into bound structures. this epoch strongly resemble... | arxiv:1911.01661 |
we propose and analyze an algorithmic framework for " bias bounties " : events in which external participants are invited to propose improvements to a trained model, akin to bug bounty events in software and security. our framework allows participants to submit arbitrary subgroup improvements, which are then algorithmi... | arxiv:2201.10408 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.