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we discuss spin - wave transport in anisotropic ferromagnets with an emphasis on the zeroes of the band edges as a function of a magnetic field. an associated divergence of the magnon spin should be observable by enhanced magnon conductivities in non - local experiments, especially in two - dimensional ferromagnets. | arxiv:2304.10709 |
we discuss the identification of attracting sets using combinatorial multivector fields ( cmvf ) from conley - morse - forman theory. a cmvf is a dynamical system induced by the action of a continuous dynamical system on a phase space discretization that can be represented as a lefschetz complex. there is a rich theory... | arxiv:2503.23079 |
the problem of parameter estimation by the continuous time observations of a deterministic signal in white gaussian noise is considered. the asymptotic properties of the maximul likelihood estimator are described in the asymptotics of small noise ( large siglal - to - noise ratio ). we are interested by the situation w... | arxiv:1509.02715 |
we present a detailed analysis of spitzer - irac images obtained toward six herbig - haro objects ( hh 54 / 211 / 212, l 1157 / 1448, bhr 71 ). our analysis includes : ( 1 ) comparisons in morphology between the four irac bands ( 3. 6, 4. 5, 5. 8 and 8. 0 um ), and h2 1 - 0 s ( 1 ) at 2. 12 um for three out of six obje... | arxiv:1008.1111 |
we obtained a $ \ psi _ 1 $ estimate for the sum of rademacher random variables under condition that they are dependent. | arxiv:1804.10709 |
we report on quantum interference between a pair of counterpropagating quantum hall edge states that are separated by a high quality tunnel barrier. observed aharonov - bohm oscillations are analyzed in terms of resonant tunneling between coupled luttinger liquids that creates bound electronic states between pairs of t... | arxiv:cond-mat/0407641 |
rubio de francia proved the one - sided littlewood - - paley inequality for arbitrary intervals in $ l ^ p $, $ 2 \ le p < \ infty $. in this article, his methods are developed and employed to prove an analogue of such an inequality " beyond the index $ p = \ infty $ ", i. e., for spaces of h \ " older functions and bm... | arxiv:1211.0696 |
we discuss the extension of our recent work hep - th / 0410272, hep - th / 0410273 to general conifold transitions and type - iia string theory. | arxiv:hep-th/0501164 |
an important objective of the classical processing of stationary random sequences under nonparametric uncertainty is the problem of filtering in case when the distribution of the underlying signal is unknown. in this paper it is assumed that an unknown useful signal $ ( s _ n ) _ { n \ ge1 } $ is markov. this allows us... | arxiv:1402.1823 |
we investigate various relaxations of additivity for set maps into banach spaces in the context of representations of amenable groups. specifically, we establish conditions under which asymptotically additive and almost additive set maps are equivalent. for banach lattices, we further show that these notions are relate... | arxiv:2501.14581 |
the bc meson is composed of two heavy quarks of distinct flavor. measurements of its lifetime and production properties have been made based on semileptonic bc to j / psi + l + x decays using data collected with the cdf ii detector corresponding to an integrated luminosity of 1 fb - 1. the bc average lifetime ctau is m... | arxiv:0910.3013 |
it is known that self - adjoint hamiltonians with purely discrete eigenvalues can be written as ( infinite ) linear combination of mutually orthogonal projectors with eigenvalues as coefficients of the expansion. the projectors are defined by the eigenvectors of the hamiltonians. in some recent papers, this expansion h... | arxiv:2010.05043 |
the high chemical reactivity of strontium, which can opacify a viewport exposed to a strontium atomic source, is a concern for some atomic physics experiments where it is sometimes necessary to send a laser beam counter - propagating relative to the atomic beam. while a number of experiments use heated sapphire windows... | arxiv:1802.08499 |
linear preferential attachment ( nlpa ), existing nodes in the network gain new edges proportionally to the node degree raised to a constant positive power, α { \ displaystyle \ alpha }. formally, this means that the probability that node i { \ displaystyle i } gains a new edge is given by p i = k i α j k j α. { \ disp... | https://en.wikipedia.org/wiki/Network_science |
federated learning ( fl ) has gained increasing attention due to privacy - preserving collaborative training on decentralized clients, mitigating the need to upload sensitive data to a central server directly. nonetheless, recent research has underscored the risk of exposing private data to adversaries, even within fl ... | arxiv:2504.02213 |
in this paper, we introduce an algorithm for performing spectral clustering efficiently. spectral clustering is a powerful clustering algorithm that suffers from high computational complexity, due to eigen decomposition. in this work, we first build the adjacency matrix of the corresponding graph of the dataset. to bui... | arxiv:1704.02345 |
we introduce a novel methodology that leverages the strength of physics - informed neural networks ( pinns ) to address the counterdiabatic ( cd ) protocol in the optimization of quantum circuits comprised of systems with $ n _ { q } $ qubits. the primary objective is to utilize physics - inspired deep learning techniq... | arxiv:2309.04434 |
we propose a haptic system for virtual manipulation to provide feedback on the user ' s forearm instead of the fingertips. in addition to visual rendering of the manipulation with virtual fingertips, we employ a device to deliver normal or shear skin - stretch at multiple points near the wrist. to understand how design... | arxiv:2204.05830 |
vibrational and elastic properties of the $ r $ fe $ _ { 4 } $ sb $ _ { 12 } $ skutterudites are investigated by, respectively, temperature $ ( t ) $ dependent extended x - ray absorption fine structure ( exafs ) and pressure $ ( p ) $ dependent x - ray diffraction ( xrd ) experiments. the fe $ k $ - edge exafs experim... | arxiv:2203.14821 |
is it always necessary to compute tokens from shallow to deep layers in transformers? the continued success of vanilla transformers and their variants suggests an undoubted " yes ". in this work, however, we attempt to break the depth - ordered convention by proposing a novel architecture dubbed mixture - of - modules ... | arxiv:2407.06677 |
as premodern texts are passed down over centuries, errors inevitably accrue. these errors can be challenging to identify, as some have survived undetected for so long precisely because they are so elusive. while prior work has evaluated error detection methods on artificially - generated errors, we introduce the first ... | arxiv:2410.11071 |
we show that uncertainties in the values of the surface heavy element abundances of the sun are the largest source of the theoretical uncertainty in calculating the p - p, pep, 8b, 13n, 15o, and 17f solar neutrino fluxes. we evaluate for the first time the sensitivity ( partial derivative ) of each solar neutrino flux ... | arxiv:astro-ph/0412096 |
a global time - discretized scheme for the navier - stokes equation system in its leray projection form is defined. it is shown that the scheme converges to a bounded global classical solution for smooth data which have polynomial decay at infinity. furthermore, the algorithm proposed is extended to the situation of in... | arxiv:1004.4589 |
in comparison with derrida ' s rem, we investigate the influence of the so - called decoration processes arising in the limiting extremal processes of numerous log - correlated gaussian fields. in particular, we focus on the branching brownian motion and two specific quantities from statistical physics in the vicinity ... | arxiv:2404.02888 |
a long - range fifth force coupled to dark matter can induce a coupling to ordinary matter if the dark matter interacts with standard model fields. we consider constraints on such a scenario from both astrophysical observations and laboratory experiments. we also examine the case where the dark matter is a weakly inter... | arxiv:0807.4363 |
the problem of extinction is the most important issue to be dealt with in the process of obtaining true absolute magnitudes of core - collapse ( including stripped - envelope ) supernovae ( sne ). the plane - parallel model, widely used in the past, was shown not to describe extinction adequately. we try to apply an al... | arxiv:0711.4241 |
deep neural networks ( dnns ) have been widely used to solve partial differential equations ( pdes ) in recent years. in this work, a novel deep learning - based framework named particle weak - form based neural networks ( particlewnn ) is developed for solving pdes in the weak form. in this framework, the trial space ... | arxiv:2305.12433 |
we study a generic family of two - player continuous - time nonzero - sum stopping games modeling a war of attrition with symmetric information and stochastic payoffs that depend on an homogeneous linear diffusion. we first show that any markovian mixed strategy for player $ i $ can be represented by a pair $ ( \ mu ^ ... | arxiv:2210.08848 |
the latency reduction between the discovery of vulnerabilities, the build - up and dissemination of cyber - attacks has put significant pressure on cybersecurity professionals. for that, security researchers have increasingly resorted to collective action in order to reduce the time needed to characterize and tame outs... | arxiv:2206.15055 |
using a compilation of measurements of the stellar mass density as a function of redshift we can infer the cosmic star formation history. for z < 0. 7 there is good agreement between the two star formation histories. at higher redshifts the instantaneous indicators suggest star formation rates larger than that implied ... | arxiv:0803.4024 |
let $ g $ be a locally compact amenable group, $ tlim ( g ) $ the topological left - invariant means on $ g $, and $ tlim _ 0 ( g ) $ the limit points of folner - nets. i show that $ tlim _ 0 ( g ) = tlim ( g ) $ unless $ g $ is $ \ sigma $ - compact non - unimodular, in which case $ tlim _ 0 ( g ) \ neq tlim ( g ) $. ... | arxiv:2003.00251 |
we perform a numerical simulation of the dynamics of quantized vortices produced by coflow in a square channel using the vortex filament model. unlike the situation in thermal counterflow, where the superfluid velocity $ v _ { \ rm s } $ and normal - fluid velocity $ v _ { \ rm n } $ flow in opposite directions, in cof... | arxiv:1602.08252 |
the heavy - fermion system $ \ mathrm { ute _ 2 } $ is a candidate for spin - triplet superconductivity, which is of considerable interest to quantum engineering. among the outstanding issues is the nature of the pairing state. a recent surprising discovery is the observation of a resonance in the spin excitation spect... | arxiv:2112.14750 |
the optical trapping of polymeric nanofibers and the characterization of the rotational dynamics are reported. a strategy to apply a torque to a polymer nanofiber, by tilting the trapped fibers using a symmetrical linear polarized gaussian beam is demonstrated. rotation frequencies up to 10 hz are measured, depending o... | arxiv:0907.2111 |
depth completion using lightweight time - of - flight ( tof ) depth sensors is attractive due to their low cost. however, lightweight tof sensors usually have a limited field of view ( fov ) compared with cameras. thus, only pixels in the zone area of the image can be associated with depth signals. previous methods fai... | arxiv:2411.04480 |
quantum localization of classical mechanics within the brst - bfv and bv ( or field - antifield ) quantization methods are studied. it is shown that a special choice of gauge fixing functions ( or brst - bfv charge ) together with the unitary limit leads to hamiltonian localization in the path integral of the brst - bf... | arxiv:1603.03990 |
we discuss a correlated two - photon imaging apparatus that is capable of producing images that are free of the effects of odd - order aberration introduced by the optical system. we show that both quantum - entangled and classically correlated light sources are capable of producing the desired spatial - aberration can... | arxiv:1008.0801 |
the problem of maximizing precision at the top of a ranked list, often dubbed precision @ k ( prec @ k ), finds relevance in myriad learning applications such as ranking, multi - label classification, and learning with severe label imbalance. however, despite its popularity, there exist significant gaps in our understa... | arxiv:1505.06813 |
we introduce the concept of numerical gaussian processes, which we define as gaussian processes with covariance functions resulting from temporal discretization of time - dependent partial differential equations. numerical gaussian processes, by construction, are designed to deal with cases where : ( 1 ) all we observe... | arxiv:1703.10230 |
semantic role theory is a widely used approach for event representation. yet, there are multiple indications that semantic role paradigm is necessary but not sufficient to cover all elements of event structure. we conducted an analysis of semantic role representation for events to provide an empirical evidence of insuf... | arxiv:1810.03879 |
we tackle the problem of building adaptive estimation procedures for ill - posed inverse problems. for general regularization methods depending on tuning parameters, we construct a penalized method that selects the optimal smoothing sequence without prior knowledge of the regularity of the function to be estimated. we ... | arxiv:0807.4859 |
we present spectroscopic observations with the 3. 6m eso telescope of two emission - line galaxies, j2104 - 0035 and j0113 + 0052, selected from the data release 4 ( dr4 ) of the sloan digital sky survey ( sdss ). from our data we determine the oxygen abundance of these systems to be respectively 12 + logo / h = 7. 26 ... | arxiv:astro-ph/0604234 |
a light beam carrying orbital angular momentum ( oam ) is characterized by a helical phase - front that winds around the center of the beam. these beams have unique properties that have found numerous applications. in the field of data transmission, they represent a degree of freedom that could potentially increase cap... | arxiv:2310.08489 |
we study the problem of exponential mixing and large deviations for discrete - time markov processes associated with a class of random dynamical systems. under some dissipativity and regularisation hypotheses for the underlying deterministic dynamics and a non - degeneracy condition for the driving random force, we dis... | arxiv:1410.6188 |
the su ( 4 ) polyakov linear sigma model ( plsm ) is extended towards characterizing the chiral condensates, $ \ sigma _ l $, $ \ sigma _ s $ and $ \ sigma _ c $ of light, strange and charm quarks, respectively and the deconfinement order - parameters $ \ phi $ and $ \ bar { \ phi } $ at finite temperatures and densiti... | arxiv:1801.10234 |
the detection of olivine on vesta is interesting because it may provide critical insights into planetary differentiation early in our solar system ' s history. ground - based and hubble space telescope ( hst ) observations of asteroid ( 4 ) vesta have suggested the presence of olivine on the surface. these observations... | arxiv:1502.03189 |
we report a search for fluctuations of the sky brightness toward the north ecliptic pole ( nep ) with the japanese infrared astronomical satellite akari, at 2. 4, 3. 2, and 4. 1 \ mum. we obtained circular maps with 100 diameter field of view which clearly show a spatial structure on scale of a few hundred arcsec. a po... | arxiv:1010.0491 |
electronic quantum effects in disordered conductors are controlled by the dephasing rate of conduction electrons. this rate is expected to vanish with the temperature. we consider the very intriguing recently reported apparent saturation of this dephasing rate in several systems at very low temperatures. we show that t... | arxiv:cond-mat/9903017 |
recent lattice computations showed how the approach dubbed " refined gribov - zwanziger scenario " is in very good agreement with data and the gluon propagator fits them very well. this propagator can be described as a finite sum of yukawa propagators and can be obtained introducing some condensates representing the co... | arxiv:1202.4105 |
the lucas & kanade ( lk ) algorithm is the method of choice for efficient dense image and object alignment. the approach is efficient as it attempts to model the connection between appearance and geometric displacement through a linear relationship that assumes independence across pixel coordinates. a drawback of the a... | arxiv:1603.08597 |
it has been shown that many of the phenomena related to the formation of " tails " in the low - concentration region of ion - implanted impurity distribution are due to the anomalous diffusion of nonequilibrium impurity interstitials. these phenomena include boron implantation in preamorphized silicon, a " hot " implan... | arxiv:1108.4154 |
static self - consistent methods usually allow to determine the most probable fission fragments mass asymmetry. we have applied random neck rupture mechanism to the nuclei in the configuration at the end of fission paths. fission fragment mass distributions have been deduced from the pre - scission nuclear density dist... | arxiv:1502.05564 |
this paper aims at enlarging the problem of neural architecture search ( nas ) from single - path and multi - path search to automated mixed - path search. in particular, we model the nas problem as a sparse supernet using a new continuous architecture representation with a mixture of sparsity constraints. the sparse s... | arxiv:2007.16112 |
the nontrivial band topology can influence the hofstadter spectrum. we investigate the hofstadter spectrum for various models of chern insulators under a rational flux $ \ frac { \ phi _ { 0 } } { q } $, here $ \ phi _ { 0 } = \ frac { h } { e } $ and $ q $ being an integer. we find two major features. first, the numbe... | arxiv:2303.14794 |
in this paper, we first propose the concept of strong idempotent codec based on idempotent codec. the idempotence of codec refers to the stability of codec to re - compression. similarly, we define the strong idempotence of codec as the stability of codec to multiple quality re - compression, which is an important feat... | arxiv:2304.08269 |
skew - orthogonal polynomials ( sops ) arise in the study of the n - point distribution function for orthogonal and symplectic random matrix ensembles. motivated by the average of characteristic polynomials of the bures random matrix ensemble studied in [ 22 ], we propose the concept of partial - skew - orthogonal poly... | arxiv:1712.06382 |
we study a multi - player one - round game termed stackelberg network pricing game, in which a leader can set prices for a subset of $ m $ priceable edges in a graph. the other edges have a fixed cost. based on the leader ' s decision one or more followers optimize a polynomial - time solvable combinatorial minimizatio... | arxiv:0802.2841 |
we consider a counting problem in the setting of hyperbolic dynamics. let $ \ phi _ t : \ lambda \ to \ lambda $ be a weak mixing hyperbolic flow. we count the proportion of prime periodic orbits of $ \ phi _ t $, with length less than $ t $, that satisfy an averaging condition related to a h \ " older continuous funct... | arxiv:1805.05692 |
we demonstrate the batyrev - manin conjecture for the number of points of bounded height on hypersurfaces of some toric varieties whose rank of the picard group is 2. the method used is inspired by the one developed by schindler for the study the case of hypersurfaces of biprojective spaces. this method is based on the... | arxiv:1411.7249 |
theoretically, stars have been formed from the collapse of cores in the molecular clouds. historically, the core had been assumed as an singular isothermal sphere ( sis ), and the collapse had been investigated by a self - similar manner. this is while the rotation and magnetic field lead to non - symmetric collapse so... | arxiv:1007.0625 |
we propose a direct numerical method for the solution of an optimal control problem governed by a two - side space - fractional diffusion equation. the presented method contains two main steps. in the first step, the space variable is discretized by using the jacobi - gauss pseudospectral discretization and, in this wa... | arxiv:1810.05876 |
we discuss the production of 26al and 60fe in two massive star models, namely a 25 and a 80 msun, of initial solar metallicity. | arxiv:astro-ph/0411441 |
we study the root of unity degeneration of cluster algebras and quantum dilogarithm identities. we prove identities for the cyclic dilogarithm associated with a mutation sequence of a quiver, and as a consequence new identities for the non - compact quantum dilogarithm at $ b = 1 $. | arxiv:1412.5777 |
in this paper, we propose a novel model for time series prediction in which difference - attention lstm model and error - correction lstm model are respectively employed and combined in a cascade way. while difference - attention lstm model introduces a difference feature to perform attention in traditional lstm to foc... | arxiv:2003.13616 |
7th century ce. the birth and expansion of islam during the 7th century was quickly followed by its hellenization. knowledge of greek conceptions of the world was preserved and absorbed into islamic theology, law, culture, and commerce, which were aided by the translations of traditional greek texts and some syriac int... | https://en.wikipedia.org/wiki/History_of_science |
quantum many - body systems ( qmbs ) are some of the most challenging physical systems to simulate numerically. methods involving approximations for tensor network ( tn ) contractions have proven to be viable alternatives to algorithms such as quantum monte carlo or simulated annealing. however, these methods are cumbe... | arxiv:1908.08553 |
- identify as hackers. many advocate using the more recent and nuanced alternate terms when describing criminals and others who negatively take advantage of security flaws in software and hardware. others prefer to follow common popular usage, arguing that the positive form is confusing and unlikely to become widesprea... | https://en.wikipedia.org/wiki/Hacker |
we propose a novel personalized concept for the optimal treatment selection for a situation where the response is a multivariate vector, that could contain right - censored variables such as survival time. the proposed method can be applied with any number of treatments and outcome variables, under a broad set of model... | arxiv:2209.15068 |
we report on the multi - wavelength observations of pks 1510 - 089 ( a flat spectrum radio quasar at z = 0. 361 ) during its high activity period between 2008 september and 2009 june. during this 11 months period, the source was characterized by a complex variability at optical, uv and gamma - ray bands, on time scales... | arxiv:1007.1237 |
mana is a measure of the amount of non - clifford resources required to create a state ; the mana of a mixed state on $ \ ell $ qudits bounded by $ \ le \ frac 1 2 ( \ ell \ ln d - s _ 2 ) $ ; $ s _ 2 $ the state ' s second renyi entropy. we compute the mana of haar - random pure and mixed states and find that the mana... | arxiv:2011.13937 |
video colorization task has recently attracted wide attention. recent methods mainly work on the temporal consistency in adjacent frames or frames with small interval. however, it still faces severe challenge of the inconsistency between frames with large interval. to address this issue, we propose a novel video colori... | arxiv:2305.07904 |
motivated by recent work of deruelle - schulze - simon, we study complete weakly pic1 ricci flows with euclidean volume growth coming out of metric cones. we show that such a ricci flow must be an expanding gradient ricci soliton, and as a consequence, any metric cone at infinity of a complete weakly pic1 k \ " ahler m... | arxiv:2404.12755 |
we report the results of an observational study aimed at searching for magnetic pulsating hot stars suitable for magneto - asteroseismology. a sample of sixteen chemically peculiar stars was selected and analysed using both high - resolution spectropolarimetry with espadons and k2 high - precision space photometry. for... | arxiv:1805.00781 |
one of the deepest questions in condensed matter physics concerns what other phases compete with superconductivity in high - transition - temperature ( high - tc ) superconductors. one candidate is the " stripe " phase, in which the carriers ( holes ) condense into rivers of charge separating regions of antiferromagnet... | arxiv:cond-mat/0501087 |
let $ \ ff $ be an arbitrary field and $ ( \ bm { g } _ { n, d / n } ) _ n $ be a sequence of sparse weighted erd \ h { o } s - r \ ' enyi random graphs on $ n $ vertices with edge probability $ d / n $, where weights from $ \ ff \ setminus \ { 0 \ } $ are assigned to the edges according to a fixed matrix $ j _ n $. we... | arxiv:2301.12978 |
the prevalence of suicide has been on the rise since the 20th century, causing severe emotional damage to individuals, families, and communities alike. despite the severity of this suicide epidemic, there is so far no reliable and systematic way to assess suicide intent of a given individual. through efforts to automat... | arxiv:2206.07522 |
item nonresponse is frequently encountered in practice. ignoring missing data can lose efficiency and lead to misleading inference. fractional imputation is a frequentist approach of imputation for handling missing data. however, the parametric fractional imputation of \ cite { kim2011parametric } may be subject to bia... | arxiv:1809.05976 |
we find that the local galactic extinction towards the field of gamma - ray burst grb970228 is $ a _ v = 1. 09 ^ { + 0. 10 } _ { - 0. 20 } $, which implies a substantial dimming and change in the spectral slope of the intrinsic grb970228 afterglow. we measure a color $ ( v _ { 606 } - i _ { 814 } ) _ { st } = - 0. 18 ^... | arxiv:astro-ph/9909027 |
this paper presents our work on development of owl - driven systems for formal representation and reasoning about terminological knowledge and facts in petrology. the long - term aim of our project is to provide solid foundations for a large - scale integration of various kinds of knowledge, including basic terms, rock... | arxiv:1106.1510 |
in multi - agent environments, agents often struggle to learn optimal policies due to sparse or delayed global rewards, particularly in long - horizon tasks where it is challenging to evaluate actions at intermediate time steps. we introduce temporal - agent reward redistribution ( tar $ ^ 2 $ ), a novel approach desig... | arxiv:2412.14779 |
systems of two ordinary and partial differential equations ( odes and pdes ) had been obtained from a scalar complex ode by splitting it into its real and imaginary parts. the procedure was also carried out to obtain a four dimensional system by splitting a complex system of two odes into its real and imaginary parts. ... | arxiv:1108.5251 |
we give a uniform approximation of the characteristic function of the boundary of a centrally symmetric n - dimensional compact and convex set by homogeneous polynomials of even degree $ d $ fulfilling $ | g _ d - 1 | \ leq e / d ^ { 1 / 2 - \ beta } $, for every $ \ beta > 0 $, large enough $ d $, and some constant $ ... | arxiv:2012.04999 |
stein discrepancies have emerged as a powerful statistical tool, being applied to fundamental statistical problems including parameter inference, goodness - of - fit testing, and sampling. the canonical stein discrepancies require the derivatives of a statistical model to be computed, and in return provide theoretical ... | arxiv:2207.02636 |
the advent of multiple readers in magnetic recording opens the possibility of replacing the current industry ' s single - track detection with the more promising multitrack detection architectures. we have proposed a first solution, a generalized partial - response maximum - likelihood ( gprml ) architecture, that exte... | arxiv:2207.02432 |
mariana trench is the deepest place on the earth. it crosses four tectonic plates of the pacific ocean : mariana, caroline, pacific and philippine. the formation of the trench is caused by the complex interconnection of various environmental factors. the aim of this study was to describe and characterize various impact... | arxiv:1812.01099 |
in this paper some concepts of convex analysis on hyperbolic space are studied. we first study properties of the intrinsic distance, for instance, we present the spectral decomposition of its hessian. next, we study the concept of convex sets and the intrinsic projection onto these sets. we also study the concept of co... | arxiv:2110.06514 |
in radio frequency applications, electric circuits generate signals, which are amplitude modulated and / or frequency modulated. a mathematical modelling yields typically systems of differential algebraic equations ( daes ). a multivariate signal model transforms the daes into multirate partial differential algebraic e... | arxiv:1707.08201 |
given the broad application of infrared technology across diverse fields, there is an increasing emphasis on investigating super - resolution techniques for infrared images within the realm of deep learning. despite the impressive results of current transformer - based methods in image super - resolution tasks, their r... | arxiv:2401.11859 |
accurate and explainable artificial - intelligence ( ai ) models are promising tools for the acceleration of the discovery of new materials, ore new applications for existing materials. recently, symbolic regression has become an increasingly popular tool for explainable ai because it yields models that are relatively ... | arxiv:2305.01242 |
in this paper we consider estimation of unobserved components in state space models using a dynamic factor approach to incorporate auxiliary information from high - dimensional data sources. we apply the methodology to unemployment estimation as done by statistics netherlands, who uses a multivariate state space model ... | arxiv:1901.11355 |
we show that if a countable structure $ m $ in a finite relational language is not cellular, then there is an age - preserving $ n \ supseteq m $ such that $ 2 ^ { \ aleph _ 0 } $ many structures are bi - embeddable with $ n $. the proof proceeds by a case division based on mutual algebraicity. | arxiv:1910.11230 |
modern large - scale data analysis increasingly faces the challenge of achieving computational efficiency as well as statistical accuracy, as classical statistically efficient methods often fall short in the first regard. in the context of testing monotonicity of a regression function, we propose fomt ( fast and optima... | arxiv:2503.03020 |
this is the second part of a series of three strongly related papers in which three equivalent structures are studied : - internal categories in categories of monoids ; defined in terms of pullbacks relative to a chosen class of spans - crossed modules of monoids relative to this class of spans - simplicial monoids of ... | arxiv:1803.04124 |
his student democritus. later, epicurus would develop a full natural cosmology based on atomism, and would adopt a " canon " ( ruler, standard ) which established physical criteria or standards of scientific truth. the greek doctor hippocrates established the tradition of systematic medical science and is known as " th... | https://en.wikipedia.org/wiki/Science |
we derive data of 4615 star - forming early - type galaxies ( etgs ), which come from cross - match of the $ galaxy ~ zoo ~ 1 $ and the catalogue of the mpa - jhu emission - line measurements for the sloan digital sky survey data release 7. our sample distributes mainly at $ \ rm - 0. 7 < log ( sfr [ m _ { \ sun } yr ^... | arxiv:2112.09308 |
cosmic strings in the brane universe have recently gained a great interest. i think the most interesting story is that future cosmological observations distinguish them from the conventional cosmic strings. if the strings are the higher - dimensional objects that can ( at least initially ) move along the compactified s... | arxiv:hep-ph/0601014 |
we propose a very simple preprocessing algorithm for semidefinite programming. our algorithm inspects the constraints of the problem, deletes redundant rows and columns in the constraints, and reduces the size of the variable matrix. it often detects infeasibility. our algorithm does not rely on any optimization solver... | arxiv:1608.02300 |
biodiversity is declining at an unprecedented rate, impacting ecosystem services necessary to ensure food, water, and human health and well - being. understanding the distribution of species and their habitats is crucial for conservation policy planning. however, traditional methods in ecology for species distribution ... | arxiv:2311.00936 |
nsv 1907, formerly listed as an irregular variable in variability catalogues, was classified as an algol - type eclipsing binary in the catalina surveys periodic variable star catalogue. we have identified nsv 1907 as an ultraviolet ( uv ) bright source using measurements from the galex space telescope and detected obv... | arxiv:1608.07610 |
recent experiments suggest that polarized photons may couple significantly to pseudoscalar particles such as axions. we study the possible observational signatures of axion - photon coupling for radiation from magnetic stars, with particular focus on neutron stars. we present general methods for calculating the axion -... | arxiv:astro-ph/0609775 |
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