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the current pandemic caused by the coronavirus sars - cov - 2 is having negative health, social and economic consequences worldwide. in europe, the pandemic started to develop strongly at the end of february and beginning of march 2020. it has subsequently spread over the continent, with special virulence in northern i... | arxiv:2004.12503 |
conditional density estimation ( cde ) goes beyond regression by modeling the full conditional distribution, providing a richer understanding of the data than just the conditional mean in regression. this makes cde particularly useful in critical application domains. however, interpretable cde methods are understudied.... | arxiv:2410.11449 |
e - astrogam is a gamma - ray space mission proposed for the fifth medium - size mission ( m5 ) of the european space agency. it is dedicated to the study of the non - thermal universe in the photon energy range from ~ 0. 15 mev to 3 gev with unprecedented sensitivity, angular and energy resolution, together with a gro... | arxiv:1706.07031 |
we present a framework which enables the analysis of dynamic inverse problems for wave phenomena that are modeled through second - order hyperbolic pdes. this includes well - posedness and regularity results for the forward operator in an abstract setting, where the operators in an evolution equation represent the unkn... | arxiv:1901.10253 |
the influence of the isospin - independent, isospin - and momentum - dependent equation of state ( eos ), as well as the coulomb interaction on the pion production in intermediate energy heavy ion collisions ( hics ) is studied for both isospin - symmetric and neutron - rich systems. the coulomb interaction plays an im... | arxiv:nucl-th/0509070 |
in this paper, we study a new class of finsler metrics, f = \ alpha \ phi ( b ^ 2, s ), s : = \ beta / \ alpha, defined by a riemannian metric \ alpha and 1 - form \ beta. it is called general ( \ alpha, \ beta ) metric. in this paper, we assume \ phi be coefficient by s and \ beta be closed and conformal. we find a ne... | arxiv:1706.08854 |
pressure on a finger without touching any physical object. the focal point that creates the sensation of pressure is generated by individually controlling the phase and intensity of each transducer in an array of ultrasound transducers. these beams can also be used to deliver sensations of vibration, and to give users ... | https://en.wikipedia.org/wiki/Haptic_technology |
the sparsity - aware zero attractor least mean square ( za - lms ) algorithm manifests much lower misadjustment in strongly sparse environment than its sparsity - agnostic counterpart, the least mean square ( lms ), but is shown to perform worse than the lms when sparsity of the impulse response decreases. the reweight... | arxiv:1605.02877 |
the spectral evolution and spectral lag behavior of 92 bright pulses from 84 gamma - ray bursts ( grbs ) observed by the fermi gbm telescope are studied. these pulses can be classified into hard - to - soft pulses ( h2s, 64 / 92 ), h2s - dominated - tracking pulses ( 21 / 92 ), and other tracking pulses ( 7 / 92 ). we ... | arxiv:1808.00636 |
we analyze here variations of the position and the vertical extent of the energy deposition layer ( edl ) inthe c1. 6 goes - class solar flare observed at 10 : 20 ut on 2012 september 10. the variations of the edl arecontrasted with the variations of the spectra and emission intensities recorded in the h - alpha line w... | arxiv:2009.06064 |
we present the bmw - chandra source catalogue drawn from essentially all chandra acis - i pointed observations with an exposure time in excess of 10ks public as of march 2003 ( 136 observations ). using the wavelet detection algorithm developed by lazzati et al. ( 1999 ) and campana et al. ( 1999 ), which can character... | arxiv:0807.2446 |
in the context of mapping high - level algorithms to hardware, we consider the basic problem of generating an efficient hardware implementation of a single threaded program, in particular, that of an inner loop. we describe a control - flow mechanism which provides dynamic loop - pipelining capability in hardware, so t... | arxiv:1411.0863 |
to build on previous results to progress towards the solution. in the 1960s, collections of mathematical exercises were translated from russian and published by w. h. freeman and company : the ussr olympiad problem book ( 1962 ), problems in higher algebra ( 1965 ), and problems in differential equations ( 1963 ). = = ... | https://en.wikipedia.org/wiki/Exercise_(mathematics) |
an efficient caching can be achieved by predicting the popularity of the files accurately. it is well known that the popularity of a file can be nudged by using recommendation, and hence it can be estimated accurately leading to an efficient caching strategy. motivated by this, in this paper, we consider the problem of... | arxiv:2210.07747 |
the standard state space model is widely believed to account for the cerebellar computation in motor adaptation tasks [ 1 ]. here we show that several recent experiments [ 2 - 4 ] where the visual feedback is irrelevant to the motor response challenge the standard model. furthermore, we propose a new model that account... | arxiv:1802.08217 |
although diffusion - based techniques have shown remarkable success in image generation and editing tasks, their abuse can lead to severe negative social impacts. recently, some works have been proposed to provide defense against the abuse of diffusion - based methods. however, their protection may be limited in specif... | arxiv:2503.05595 |
reinforcement learning is a general technique that allows an agent to learn an optimal policy and interact with an environment in sequential decision making problems. the goodness of a policy is measured by its value function starting from some initial state. the focus of this paper is to construct confidence intervals... | arxiv:2001.04515 |
remains open. finally, we deal with the question of whether $ \ varinjlim \ operatorname { add } m = \ widetilde { \ operatorname { add } m } $ where $ \ widetilde { \ operatorname { add } m } $ is the class of all pure epimorphic images of direct sums of copies of a module $ m $. we show that the answer is positive in... | arxiv:2110.13105 |
we show that the $ t _ { 2g } ^ 2 $ perovskite lavo $ _ 3 $, in its orthorhombic phase, is a rare case of a system hosting an orbital - ordering kugel - khomskii phase transition, rather than being controlled by the coulomb - enhanced crystal - field splitting. we find that, as a consequence of this, the magnetic trans... | arxiv:2209.04912 |
for a compact homogeneous space $ g / k $, we study the problem of existence of $ g $ - invariant riemannian metrics such that each eigenspace of the laplacian is a real irreducible representation of $ g $. we prove that the normal metric of a compact irreducible symmetric space has this property only in rank one. furt... | arxiv:1707.01403 |
we report a novel theoretical approach on the microwave - induced resistance oscillations based on the coherent states of the quantum harmonic oscillator. we first obtain an expression for the coherent states of driven - quantum harmonic oscillators that are used, in the model of microwaveinduced electron orbits, to ca... | arxiv:2306.12160 |
this work studies the long - standing problems of model capacity and negative interference in multilingual neural machine translation mnmt. we use network pruning techniques and observe that pruning 50 - 70 % of the parameters from a trained mnmt model results only in a 0. 29 - 1. 98 drop in the bleu score. suggesting ... | arxiv:2107.09622 |
open vocabulary 3d object detection ( ov3d ) allows precise and extensible object recognition crucial for adapting to diverse environments encountered in assistive robotics. this paper presents opennav, a zero - shot 3d object detection pipeline based on rgb - d images for smart wheelchairs. our pipeline integrates an ... | arxiv:2408.13936 |
we present the first molecular dynamics study to probe the mechanisms of anomalous diffusion in cationic surfactant micelles in the presence of explicit salt and solvent - mediated interactions. simulations show that when the counter ion density increases, saddle - shaped interfaces manifest leading to the formation of... | arxiv:1610.08544 |
charge exchange emission is known to provide a key diagnostic to the interface between hot and cold matter in many astrophysical environments. most of the recent charge exchange studies focus on its emission in the x - ray band, but few on the uv part, although the latter can also provide a powerful probe of the charge... | arxiv:1703.01151 |
in our previous work [ phys. rev. lett. 103, 103602 ( 2009 ) ], we found that repulsive casimir forces could be realized by using chiral metamaterials if the chirality is strong enough. in this work, we check four different chiral metamaterial designs ( i. e., twisted - rosettes, twisted - crosswires, four - u - srrs, ... | arxiv:0911.2019 |
we present the observation of diabolic points in hermitian and non - hermitian electronics dimers. the condition of unbreakable parity - time symmetry is established for both pt - symmetric zrc and rlc dimers. we show how appears non - hermitian degeneracy points in the spectrum and how they are protected against a her... | arxiv:2005.11311 |
we establish global - in - time frequency localized local smoothing estimates for schr \ " odinger equations on hyperbolic space $ \ mathbb { h } ^ d $. in the presence of symmetric first and zeroth order potentials, which are possibly time - dependent, possibly large, and have sufficiently fast polynomial decay, these... | arxiv:1808.04777 |
we use polarization - entangled photon pairs to demonstrate quantum nonlocality in an experiment suitable for advanced undergraduates. the photons are produced by spontaneous parametric downconversion using a violet diode laser and two nonlinear crystals. the polarization state of the photons is tunable. using an entan... | arxiv:quant-ph/0205171 |
we consider the self - dual chern - simons - schr \ " odinger equation ( css ) under equivariance symmetry. among others, ( css ) has a static solution $ q $ and pseudoconformal symmetry. we study the conditional stability of pseudoconformal blow - up solutions $ u $ such that \ [ u ( t, r ) - \ frac { e ^ { i \ gamma ... | arxiv:2009.02943 |
we study the construction of a manifestly covariant worldline action from a coadjoint orbit. a coadjoint orbit is a submanifold in the dual vector space of the lie algebra and generated by coadjoint actions. since a coadjoint orbit is a symplectic space, we derive the worldline particle action from the symplectic two -... | arxiv:2311.08712 |
analyzing large volumes of real - world driving data is essential for providing meaningful and reliable insights into real - world trips, scenarios, and human driving behaviors. to this end, we developed a multi - level data processing approach that adds new information, segments data, and extracts desired parameters. ... | arxiv:2501.08868 |
estimating covariance matrices is a problem of fundamental importance in multivariate statistics. in practice it is increasingly frequent to work with data matrices $ x $ of dimension $ n \ times p $, where $ p $ and $ n $ are both large. results from random matrix theory show very clearly that in this setting, standar... | arxiv:0901.3220 |
its industry income, research, and teaching performance indicator placed at 1st, 4th and 9th respectively in the world. internationally, tsinghua was regarded as the most reputable chinese university by the times higher education world reputation rankings where, it has ranked 8th globally and 1st in the asia - pacific.... | https://en.wikipedia.org/wiki/Tsinghua_University |
for a lattice $ \ gamma $ of a simply connected solvable lie group $ g $, we describe the analytic germ in the variety of representations of $ \ gamma $ at the trivial representation as an analytic germ which is linearly embedded in the analytic germ associated with the nilpotent lie algebra determined by $ g $. by thi... | arxiv:1403.0075 |
we discuss maxipol, a bolometric balloon - borne experiment designed to measure the e - mode polarization of the cosmic microwave background radiation ( cmb ). maxipol is the first bolometric cmb experiment to observe the sky using rapid polarization modulation. to build maxipol, the cmb temperature anisotropy experime... | arxiv:astro-ph/0611394 |
gravitational theories with fixed background fields break diffeomorphism invariance. this breaking can be spontaneous or explicit. a brief summary of the main consequences of these types of breaking is presented. | arxiv:1607.07714 |
we presents result of cdd photometry for su uma dwarf nova ny her during 6 nights in june 2017 when object was in quiescence. light curves clearly show strong amplitude variations in a range of 0m. 7 - 1m. 1. time series analysis revealed a period 0. 07141 ( 5 ) d, that we identified as the period of possible negative ... | arxiv:1709.08952 |
magnetism in nanographenes ( also know as polycyclic aromatic hydrocarbons, or pahs ) are studied with first principles density functional calculations. we find that an antiferromagnetic ( afm ) phase appears as the pah reaches a certain size. this afm phase in pahs has the same origin as the one in infinitely long zig... | arxiv:0706.0863 |
we present a method for learning options from segmented demonstration trajectories. the trajectories are first segmented into skills using nonparametric bayesian clustering and a reward function for each segment is then learned using inverse reinforcement learning. from this, a set of inferred trajectories for the demo... | arxiv:2001.06793 |
realistic mobility models can demonstrate more precise evaluation results because their parameters are closer to the reality. in this paper a realistic fuzzy mobility model has been proposed. this model has rules which is changeable depending on nodes and environment conditions. this model is more complete and precise ... | arxiv:1111.6825 |
we apply the resolvent technique to the computation of the qed effective action in time dependent electric field backgrounds. the effective action has both real and imaginary parts, and the imaginary part is related to the pair production probability in such a background. the resolvent technique has been applied previo... | arxiv:hep-th/9807031 |
a number of non - markovian stochastic schr \ " odinger equations, ranging from the numerically exact hierarchical form towards a series of perturbative expressions sequentially presented in an ascending degrees of approximations are revisited in this short review, aiming at providing a systematic framework which is ca... | arxiv:1805.07539 |
usual explanations of spiral galaxy rotation curves assume circular orbits of stars. the consequences of giving up this assumption are investigated here. in particular, hyperbolic stellar trajectories are found to be interesting. the two suggested models for the production of such trajectories will also explain the obs... | arxiv:1801.09304 |
the disruption of stellar systems, such as open clusters or stellar complexes, stands out as one of the most reasonable physical processes accounting for the young moving groups observed in the solar neighbourhood. in the present study we analyse some of the mechanisms that are important in the kinematic evolution of a... | arxiv:astro-ph/9909050 |
let $ a $ be a symmetric linear relation in the hilbert space $ \ gh $ with equal deficiency indices $ n _ \ pm ( a ) \ leq \ infty $. a self - adjoint linear relation $ \ wt a \ supset a $ in some hilbert space $ \ wt \ gh \ supset \ gh $ is called an exit space extension of $ a $ ; such an extension is called finite ... | arxiv:1812.00204 |
the quest for a polynomial time algorithm for solving parity games gained momentum in 2017 when two different quasipolynomial time algorithms were constructed. in this paper, we further analyse the second algorithm due to jurdzi \ ' nski and lazi \ ' c and called the succinct progress measure algorithm. it was presente... | arxiv:1801.09618 |
we report a novel optical waveguide design of a hollow step index fiber modified with a thin layer of indium tin oxide ( ito ). we show an excitation of highly confined waveguide mode in the proposed fiber near the wavelength where permittivity of ito approaches zero. due to the high field confinement within thin ito s... | arxiv:1712.08202 |
after a brief overview of the so - called silent models and their present status, we consider the subclass of bianchi type - - i models with a magnetic field source. due to the presence of the magnetic field, the initial singularity shows ` ` oscillatory ' ' features reminiscent of the bianchi type - - ix case. the bia... | arxiv:gr-qc/9611005 |
the diophantine equation 4 / n = 1 / x + 1 / y + 1 / z for a pythagorean prime n is split into two independent diophantine equations, which correspond to two different types of solution. the solvability of these equations forces certain restrictions on allowed pythagorean primes. empirical evidence suggests that these ... | arxiv:2503.11672 |
we propose a model - independent ansatz $ m = { \ beta _ x } \ left ( x + c _ 0 \ right ) ^ { \ nu } + c _ 1 $ ( $ x = l, \, n _ r $ ) and then use it to fit the orbital and radial pion regge trajectories without the preset values. it is shown that nonzero $ c _ 1 $ is reasonable and acceptable. nonzero $ c _ 1 $ gives... | arxiv:2203.02981 |
in the large nc limit, the mass spectrum of the l = 1 orbitally excited baryons n * has a very simple structure, with states degenerate in pairs of spins j = ( 1 / 2, 3 / 2 ), ( 3 / 2, 5 / 2 ), corresponding to irreducible representations ( towers ) of the contracted su ( 4 ) _ c symmetry group. the mixing angles are c... | arxiv:hep-ph/0301187 |
this is a survey of the method of graph cuts and its applications to graph clustering of weighted unsigned and signed graphs. i provide a fairly thorough treatment of the method of normalized graph cuts, a deeply original method due to shi and malik, including complete proofs. the main thrust of this paper is the metho... | arxiv:1601.04692 |
the recent nobel - prize - winning detections of gravitational waves from merging black holes and the subsequent detection of the collision of two neutron stars in coincidence with electromagnetic observations have inaugurated a new era of multimessenger astrophysics. to enhance the scope of this emergent science, we p... | arxiv:1711.07966 |
given a henselian and japanese discrete valuation ring $ a $ and a flat and projective $ a $ - scheme $ x $, we follow the approach of biswas - dos santos to introduce a full subcategory of coherent modules on $ x $ which is then shown to be tannakian. we then prove that, under normality of the generic fibre, the assoc... | arxiv:1904.10659 |
we show that bogoliubov ' s quasiparticle in superfluid $ ^ 3he - b $ undergoes the zitterbewegung, as a free relativistic dirac ' s electron does. the expectation value of position, as well as spin, of the quasiparticle is obtained and compared with that of the dirac ' s electron. in particular, the zitterbewegung of ... | arxiv:1307.6912 |
elastic distortion of fingerprints has a negative effect on the performance of fingerprint recognition systems. this negative effect brings inconvenience to users in authentication applications. however, in the negative recognition scenario where users may intentionally distort their fingerprints, this can be a serious... | arxiv:1801.01198 |
quantum measurement is one of the most fascinating and discussed phenomena in quantum physics, due to the impact on the system of the measurement action and the resulting interpretation issues. scholars proposed weak measurements to amplify measured signals by exploiting a quantity called a weak value, but also to over... | arxiv:2306.01392 |
the uspto disseminates one of the largest publicly accessible repositories of scientific, technical, and commercial data worldwide. uspto data has historically seen frequent use in fields such as patent analytics, economics, and prosecution & litigation tools. this article highlights an emerging class of usecases direc... | arxiv:2207.05239 |
real - world applications require the classification model to adapt to new classes without forgetting old ones. correspondingly, class - incremental learning ( cil ) aims to train a model with limited memory size to meet this requirement. typical cil methods tend to save representative exemplars from former classes to ... | arxiv:2205.13218 |
this paper resolves a question proposed in kardaras and robertson [ ann. appl. probab. 22 ( 2012 ) 1576 - 1610 ] : how to invest in a robust growth - optimal way in a market where precise knowledge of the covariance structure of the underlying assets is unavailable. among an appropriate class of admissible covariance s... | arxiv:1107.2988 |
for the multiterminal secret key agreement problem, new single - letter lower bounds are obtained on the public discussion rate required to achieve any given secret key rate below the secrecy capacity. the results apply to general source model without helpers or wiretapper ' s side information but can be strengthened f... | arxiv:1701.05008 |
the following aspects of hadronic final states in deep inelastic lepton scattering are reviewed : measuring $ alpha _ s $ from multi - jet production rates and event shapes ; alternative jet algorithms for dis ; power - suppressed corrections to event shapes ; comparing jet fragmentation in $ e ^ + e ^ - $ annihilation... | arxiv:hep-ph/9510283 |
pocket code is a free and open source mobile visual programming system for the catrobat language. it allows users, starting from the age of eight, to develop games and animations with their smartphones. children can create programs with their android phone, iphone, windows phone, or other smartphone with an html5 brows... | arxiv:1310.1390 |
visualization of the adjacency matrix enables us to capture macroscopic features of a network when the matrix elements are aligned properly. community structure, a network consisting of several densely connected components, is a particularly important feature, and the structure can be identified through the adjacency m... | arxiv:2210.08989 |
in the ir limit the matrix string theory is expected to be described by the $ s ^ n \ r ^ { 8 } $ supersymmetric orbifold sigma model. recently dijkgraaf, verlinde and verlinde proposed a vertex that may describe the type iia string interaction. in this paper using this interaction vertex we derive the four graviton sc... | arxiv:hep-th/9712061 |
we prove that all states ( mixed or pure ) of qubit - qutrit ( $ 2 \ times 3 $ ) systems have entanglement - preserving unitary ( epu ) equivalence to a compact subset of true - generalized x ( tgx ) states called epu - minimal tgx states which we give explicitly. thus, for any spectrum - entanglement combination achie... | arxiv:2208.04745 |
we consider the privacy of interactions between individuals in a network. for many networks, while nodes are anonymous to outside observers, the existence of a link between individuals implies the possibility of one node revealing identifying information about its neighbor. moreover, while the identities of the account... | arxiv:2007.05466 |
the accreted component of stellar halos is composed of the contributions of several satellites, falling onto their host with their different masses, at different times, on different orbits. this work uses a suite of idealised, collisionless n - body simulations of minor mergers and a particle tagging technique to under... | arxiv:1511.08806 |
the additivity problem asks if the use of entanglement can boost the information - carrying capacity of a given channel beyond what is achievable by coding with simple product states only. this has recently been shown not to be the case for phase - insensitive one - mode gaussian channels, but remains unresolved in gen... | arxiv:1710.06734 |
privacy - preserving machine learning ( ppml ) can help us train and deploy models that utilize private information. in particular, on - device machine learning allows us to avoid sharing raw data with a third - party server during inference. on - device models are typically less accurate when compared to their server ... | arxiv:2305.12997 |
we report the result of our calculation of the nuclear spin - independent parity violating electric dipole transition amplitude ( $ e1 _ { pv } $ ) for the $ 6s ~ ^ 2s _ { 1 / 2 } - 7s ~ ^ 2s _ { 1 / 2 } $ transition in $ ^ { 133 } $ cs to an accuracy of 0. 3 \ % using a variant of the perturbed relativistic coupled - ... | arxiv:2008.08941 |
in this paper, we study the property of bigness of the tangent bundle of a smooth projective rational surface with nef anticanonical divisor. we first show that the tangent bundle $ t _ s $ of $ s $ is not big if $ s $ is a rational elliptic surface. we then study the property of bigness of the tangent bundle $ t _ s $... | arxiv:2408.14411 |
in this work, a novel approach is proposed for joint analysis of high dimensional time - resolved cardiac motion features obtained from segmented cardiac mri and low dimensional clinical risk factors to improve survival prediction in heart failure. different methods are evaluated to find the optimal way to insert conve... | arxiv:1910.02951 |
algorithmic discrimination is a condition that arises when data - driven software unfairly treats users based on attributes like ethnicity, race, gender, sexual orientation, religion, age, disability, or other personal characteristics. nowadays, as machine learning gains popularity, cases of algorithmic discrimination ... | arxiv:2312.04832 |
we calculate the spectrum of the scattered light from quantum degenerate atomic gases obeying bose - einstein statistics. the atoms are assumed to occupy two ground states which are optically coupled through a common excited state by two low intensity off - resonant light beams. in the presence of a bose condensate in ... | arxiv:cond-mat/9611074 |
in order for autonomous vehicles to become a part of the intelligent transportation ecosystem, they are required to guarantee a particular level of safety. for that to happen a safe vehicle control algorithms need to be developed, which include assessing the probability of a collision while driving along a given trajec... | arxiv:2003.00675 |
the dynamical heterogeneities ( dh ) in non - ergodic states of an attractive colloidal glass are studied, as a function of the waiting time. whereas the fluid states close to vitrify showed strong dh, the distribution of squared displacements of the glassy states studied here only present a tail of particles with incr... | arxiv:cond-mat/0510443 |
the interstellar medium ( ism ) in galaxies is multiphase and cloudy, with stars forming in the very dense, cold gas found in giant molecular clouds ( gmcs ). simulating the evolution of an entire galaxy, however, is a computational problem which covers many orders of magnitude, so many simulations cannot reach densiti... | arxiv:1009.4878 |
the atmosphere of a transiting planet shields the stellar radiation providing us with a powerful method to estimate its size and density. in particular, because of their high ionization energy, atoms with high atomic number ( z ) absorb short - wavelength radiation in the upper atmosphere, undetectable with observation... | arxiv:1507.00195 |
galaxy clustering on small scales is significantly under - predicted by sub - halo abundance matching ( sham ) models that populate ( sub - ) haloes with galaxies based on peak halo mass, $ m _ { \ rm peak } $. sham models based on the peak maximum circular velocity, $ v _ { \ rm peak } $, have had much better success.... | arxiv:1705.06347 |
we analyze the classical approximations made in " the general relativistic effects to the magnetic moment in the earth ' s gravity ", originally published as " post - newtonian effects of dirac particle in curved spacetime - i : magnetic moment in curved spacetime ", and work out precisely where in the argument the mis... | arxiv:1804.09524 |
we propose an analytical model for the force - indentation relationship in viscoelastic materials exhibiting a power law relaxation described by an exponent n, where n = 1 represents the standard viscoelastic solid ( sls ) model, and n < 1 represents a fractional sls model. to validate the model, we perform nanoindenta... | arxiv:1610.07180 |
joint embeddings between medical imaging modalities and associated radiology reports have the potential to offer significant benefits to the clinical community, ranging from cross - domain retrieval to conditional generation of reports to the broader goals of multimodal representation learning. in this work, we establi... | arxiv:1811.08615 |
we show that a global relation between baryonic mass and virial velocity can be constructed from the scale of dwarf galaxies up to that of rich galaxy clusters. the slope of this relation is close to that expected if dark matter halos form in the standard hierarchical cosmogony and capture a universal baryon fraction, ... | arxiv:astro-ph/0309500 |
shadows are common aspect of images and when left undetected can hinder scene understanding and visual processing. we propose a simple yet effective approach based on reflectance to detect shadows from single image. an image is first segmented and based on the reflectance, illumination and texture characteristics, segm... | arxiv:1807.04352 |
we discuss certain features of the low energy effective interactions of axion supermultiplet, which are relevant for axino cosmology, and examine the implication to thermal production of axino in the early universe. | arxiv:1202.4563 |
learning to capture text - table alignment is essential for tasks like text - to - sql. a model needs to correctly recognize natural language references to columns and values and to ground them in the given database schema. in this paper, we present a novel weakly supervised structure - grounded pretraining framework (... | arxiv:2010.12773 |
a general formalism to construct and improve supercurrents and source or anomaly superfields in two - derivative n = 1 supersymmetric theories is presented. it includes arbitrary gauge and chiral superfields and a linear superfield coupled to gauge fields. these families of supercurrent structures are characterized by ... | arxiv:1609.00164 |
graph neural networks ( gnn ) are very popular methods in machine learning and have been applied very successfully to the prediction of the properties of molecules and materials. first - order gnns are well known to be incomplete, i. e., there exist graphs that are distinct but appear identical when seen through the le... | arxiv:2201.07136 |
in many data analysis applications, there is a need to explain why a surprising or interesting result was produced by a query. previous approaches to explaining results have directly or indirectly used data provenance ( input tuples contributing to the result ( s ) of interest ), which is limited by the fact that relev... | arxiv:2103.15797 |
uplift modeling aims at predicting the causal effect of an action such as a medical treatment or a marketing campaign on a particular individual, by taking into consideration the response to a treatment. the treatment group contains individuals who are subject to an action ; a control group serves for comparison. uplif... | arxiv:1901.10867 |
thanks to improvements in machine learning techniques including deep learning, a free large - scale speech corpus that can be shared between academic institutions and commercial companies has an important role. however, such a corpus for japanese speech synthesis does not exist. in this paper, we designed a novel japan... | arxiv:1711.00354 |
amidst growing uncertainty and frequent restructurings, the impacts of employee exits are becoming one of the central concerns for organizations. using rich communication data from a large holding company, we examine the effects of employee departures on socialization networks among the remaining coworkers. specificall... | arxiv:2402.15683 |
unsupervised zero - shot reinforcement learning ( rl ) has emerged as a powerful paradigm for pretraining behavioral foundation models ( bfms ), enabling agents to solve a wide range of downstream tasks specified via reward functions in a zero - shot fashion, i. e., without additional test - time learning or planning. ... | arxiv:2504.07896 |
recent experiments suggest that atomic disordering dynamics are more universal than conventional coherent processes in photoinduced phase transitions ( pipts ), yet its mechanism remains unclear. using real - time time - dependent density functional theory ( rt - tddft ), we find that, at lower photoexcitation, higher ... | arxiv:2505.03143 |
in this paper we consider connection formulae for orthogonal polynomials in the context of christoffel transformations for the case where a weight function, not necessarily even, is multiplied by an even function $ c _ { 2k } ( x ), k \ in n _ 0 $, to determine new lower bounds for the largest zero and upper bounds for... | arxiv:2312.09931 |
for the sample from ge et al. of 87 low - $ z $ palomar - - green ( pg ) quasi - stellar objects ( qsos ) and 130 high - $ z $ qsos ( $ 0 < z < 5 $ ) with $ \ hb $ - based single - epoch supermassive black hole ( smbh ) masses, we performed a uniform decomposition of the \ civ \ $ \ lambda $ 1549 broad - line profile. ... | arxiv:1903.08830 |
weight - preserving model editing techniques heavily rely on the scoping mechanism that decides when to apply an edit to the base model. these scoping mechanisms utilize distance functions in the representation space to ascertain the scope of the edit. in this work, we show that distance - based scoping functions grapp... | arxiv:2408.10411 |
rigorous implementation of the effects of collisions in modeling the formation of the polarized solar lines is of utmost importance in order to realistically analyze the available, highly sensitive solar spectropolarimetric observations. indeed, even when an observation seems to fit well with theory, one can misinterpr... | arxiv:2402.00441 |
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