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gpus rely on large register files to unlock thread - level parallelism for high throughput. unfortunately, large register files are power hungry, making it important to seek for new approaches to improve their utilization. this paper introduces a new register file organization for efficient register - packing of narrow... | arxiv:2006.05693 |
recently, non - autoregressive ( nat ) models predict outputs in parallel, achieving substantial improvements in generation speed compared to autoregressive ( at ) models. while performing worse on raw data, most nat models are trained as student models on distilled data generated by at teacher models, which is known a... | arxiv:2112.11640 |
in this work, we construct commutative rings of two variable matrix differential operators that are isomorphic to a ring of meromorphic functions on a rational manifold obtained from the $ cp ^ 1 \ times cp ^ 1 $ by identification of two lines with the pole on a certain rational curve. | arxiv:0804.0117 |
generally ` ` exact ' ' quantum monte carlo computations for the ground state of many bosons make use of importance sampling. the importance sampling is based, either on a guiding function or on an initial variational wave function. here we investigate the need of importance sampling in the case of path integral ground... | arxiv:0907.4430 |
we establish a family of subspace - based learning method for multi - view learning using the least squares as the fundamental basis. specifically, we investigate orthonormalized partial least squares ( opls ) and study its important properties for both multivariate regression and classification. building on the least ... | arxiv:2007.05028 |
heavy neutral leptons ( $ n $ ) below the kaon mass are severely constrained by cosmology and lab - based searches for their decays in flight. if $ n $ interacts via an additional force, $ n \ to \ nu e ^ + e ^ - $ decays are enhanced and cosmological limits can be avoided. we show that the t2k and microboone neutrino ... | arxiv:2109.03831 |
efficient spatiotemporal modeling is an important yet challenging problem for video action recognition. existing state - of - the - art methods exploit neighboring feature differences to obtain motion clues for short - term temporal modeling with a simple convolution. however, only one local convolution is incapable of... | arxiv:2106.01088 |
in the year 1598 philipp uffenbach published a printed diptych sundial, which is a forerunner of franz ritters horizantal sundial. uffenbach ' s sundial contains apart from the usual information on a sundial ascending signs of the zodiac, several brigthest stars, an almucantar and most important the oldest gnomonic wor... | arxiv:1407.0206 |
suppose a locally compact group g acts freely and properly on a locally compact hausdorff space x, and let gamma be the induced action on c _ 0 ( x ). we consider a category in which the objects are c * - dynamical systems ( a, g, alpha ) for which there is an equivariant homomorphism of ( c _ 0 ( x ), gamma ) into the... | arxiv:0801.0161 |
we investigated implications of recently released ` joint light - curve analysis ' ( jla ) supernova ia ( sne ia ) data for dark energy models with time varying equation of state of dark energy, usually expressed as $ w ( z ) $ in terms of variation with corresponding redshift $ z $. from a comprehensive analysis of th... | arxiv:1902.04315 |
the three - phase version of the hybrid chiral bag model, containing the phase of asymptotic freedom, the hadronization phase as well as the intermediate phase of constituent quarks, is proposed. for this model the self - consistent solution, which takes into account the fermion vacuum polarization effects, is found in... | arxiv:hep-th/9912237 |
this paper proposes a computationally efficient approach to detecting objects natively in 3d point clouds using convolutional neural networks ( cnns ). in particular, this is achieved by leveraging a feature - centric voting scheme to implement novel convolutional layers which explicitly exploit the sparsity encountere... | arxiv:1609.06666 |
using an rotation of yuan, we observe that the gradient graph of any semiconvex function is a liouville manifold, that is, does not admit bounded harmonic functions. as a corollary, we find that any entire solution of the fourth order hamiltonian stationary equation with lagrangian phase angle uniformly larger than the... | arxiv:1505.04152 |
we propose a way of defining hamiltonians for quantum field theories without any renormalization procedure. the resulting hamiltonians, called ibc hamiltonians, are mathematically well - defined ( and in particular, ultraviolet finite ) without an ultraviolet cut - off such as smearing out the particles over a nonzero ... | arxiv:1505.04847 |
we present a simple extension of mssm which provides a unified picture of cosmological baryon asymmetry and dark matter. our model introduces a gauge singlet field $ n $ and a color triplet field $ x $ which couple to the right - - handed quark fields. the out - - of equilibrium decay of the majorana fermion $ n $ medi... | arxiv:hep-ph/0612357 |
quasi - periodic pedestal burst instabilities ( pbis ), featuring alternative turbulence suppression and bursts, have been clearly identified by various edge diagnostics during i - mode to h - mode transition in the east tokamak. the radial distribution of the phase perturbation caused by pbi shows that pbi is localize... | arxiv:2111.00753 |
in this paper we present a novel simulation technique for generating high quality images of any predefined resolution. this method can be used to synthesize sonar scans of size equivalent to those collected during a full - length mission, with across track resolutions of any chosen magnitude. in essence, our model exte... | arxiv:2003.01063 |
we study the dynamics of an intriguing crossover from a chaotic to a power law state as a function of strain rate within the context of a recently introduced model which reproduces the crossover. while the chaotic regime has a small set of positive lyapunov exponents, interestingly, the scaling regime has a power law d... | arxiv:cond-mat/0306570 |
hd 209458b was the first transiting planet discovered, and the first for which an atmosphere, in particular nai, was detected. with time, it has become one of the most frequently studied planets, with a large diversity of atmospheric studies using low - and high - resolution spectroscopy. here, we present transit spect... | arxiv:2002.10595 |
the unusual pre - main - sequence binary star named kh 15d undergoes remarkably deep and long - lasting periodic eclipses. some clues about the reason for these eclipses have come from the observed evolution of the system ' s light curve over the last century. here we present ubvri photometry of kh 15d based on photogr... | arxiv:astro-ph/0412498 |
we study the symmetric stochastic $ p $ - stokes system, $ p \ in ( 1, \ infty ) $, in a bounded domain. the results are two - folded. first, we show that in the context of analytically weak solutions the stochastic pressure - - related to non - divergence free stochastic forces - - enjoys almost $ - 1 / 2 $ temporal d... | arxiv:2209.02796 |
we report the experimental observation of a lensing effect on a bose - einstein condensate expanding in a moving 1d optical lattice. the effect of the periodic potential can be described by an effective mass dependent on the condensate quasi - momentum. by changing the velocity of the atoms in the frame of the optical ... | arxiv:cond-mat/0303626 |
we study and implement a simple method, based on the perfectly matched layer approach, to treat non reflecting boundary conditions with the smoothed particles hydrodynamics numerical algorithm. the method is based on the concept of physical damping. we illustrate how it works in the case of 1d and 2d time dependent wav... | arxiv:1202.5893 |
we propose a makefile for developing containerized $ \ latex $ technical documents. the makefile allows the author to execute the code that generates variables, tables and figures ( results ), which are then used during the $ \ latex $ compilation, to produce either the draft ( fast ) or full ( slow ) version of the do... | arxiv:2005.12660 |
on the basis of density functional theory calculations we predict weyl points in rhombohedral structure of ptnio $ _ 2 $ having symmorphic symmetry. from the formation energy and phonon calculations, ptnio $ _ 2 $ is found to be structurally stable. the magnetic ground state is ferromagnetic with an effective magnetic ... | arxiv:2212.00579 |
we discuss absolute calibration strategies for phase i of the hydrogen epoch of reionization array ( hera ), which aims to measure the cosmological 21 cm signal from the epoch of reionization ( eor ). hera is a drift - scan array with a 10 degree wide field of view, meaning bright, well - characterized point source tra... | arxiv:1910.12943 |
$ s $ - wave bound - states composed of a nucleon ( $ n $ ) and a heavy meson ( $ d $, $ d ^ * $, $ \ bar { b } $ or $ \ bar { b } ^ * $ ) are investigated in both the chiral su ( 3 ) quark model and the extended chiral su ( 3 ) quark model by solving the resonating group method equation. the results reveal that the $ ... | arxiv:1903.01207 |
a theory of combined interference and interaction effects on the diffusive transport properties of 3d topological insulator surface states is developed. we focus on a slab geometry ( characteristic for most experiments ) and show that interactions between the top and bottom surfaces are important at not too high temper... | arxiv:1305.2820 |
in this paper, we generalize the results of s. oh ( physics letters a. 644 - 647 \ textbf { 373 } ) to dzyaloshinski - moriya model under nonuniform external magnetic field to investigate the relation between entanglement, geometric phase ( or berry phase ) and quantum phase transition. we use quaternionic representati... | arxiv:1512.04029 |
the doping dependence of the themopower, in - plane resistivity rho _ ab ( t ), out - of - plane resistivity rho _ c ( t ), and susceptibility has been systematically measured for high - quality single crystal bi2sr2ca2cu3o10 + delta. we found that the transition temperature tc and pseudogap formation temperature t _ r... | arxiv:cond-mat/0205121 |
we introduce $ r $ - diagonal and even operators of second order. we give a formula for the second order free cumulants of the square $ x ^ 2 $ of a second order even element in terms of the second order free cumulants of $ x $. similar formulas are proved for the second order free cumulants of $ aa ^ * $, when $ a $ i... | arxiv:1912.09873 |
consider an arbitrary large population at the present time, originated at an unspecified arbitrary large time in the past, where individuals in the same generation reproduce independently, forward in time, with the same offspring distribution but potentially changing among generations. in other words, the reproduction ... | arxiv:2202.07084 |
domain - wall ( dw ) motion in magnetic nanostrips is intensively studied, in particular because of the possible applications in data storage. in this work, we will investigate a novel method of dw motion using magnetic field pulses, with the precession torque as the driving mechanism. we use a one dimensional ( 1d ) m... | arxiv:1610.08852 |
in the field of robotics research, a crucial applied problem is the hand - eye calibration issue, which involves solving the matrix equation $ ax = yb $. however, this matrix equation is merely a specific case of the more general dual quaternion matrix equation $ ax - yb = c $, which also holds significant applications... | arxiv:2404.04553 |
the discussions on the connection between gravity and thermodynamics attract much attention recently. we consider a static self - gravitating perfect fluid system in $ f ( r ) $ gravity, which is an important theory could explain the accelerated expansion of the universe. we first show that the tolman - oppenheimer - v... | arxiv:1512.05454 |
the flow transformation and the generation of vortex structures by a strong magnetic dipole field in a liquid metal duct flow is studied by means of three - dimensional direct numerical simulations. the dipole is considered as the paradigm for a magnetic obstacle which will deviate the streamlines due to lorentz forces... | arxiv:1309.3506 |
social media platforms disseminate extensive volumes of online content, including true and, in particular, false rumors. previous literature has studied the diffusion of offline rumors, yet more research is needed to understand the diffusion of online rumors. in this paper, we examine the role of lifetime and crowd eff... | arxiv:2207.03020 |
we study the set of possible configurations for a general kinetically constrained model ( kcm ), a non monotone version of the $ \ mathcal { u } $ - bootstrap percolation cellular automata. we solve a combinatorial question that is a generalization of a problem addressed by chung, diaconis and graham in 2001 for a spec... | arxiv:1707.06924 |
we introduce quantitative reductions, a novel technique for structuring the space of quantitative games and solving them that does not rely on a reduction to qualitative games. we show that such reductions exhibit the same desirable properties as their qualitative counterparts and additionally retain the optimality of ... | arxiv:1809.03887 |
we have studied the wisps to the north - west of the crab pulsar as part of a multi - wavelength campaign in the visible and in x - rays. optical observations were obtained using the nordic optical telescope in la palma and x - ray observations were made with the chandra x - ray observatory. the observing campaign took... | arxiv:1301.1321 |
it is well known that the existence of a braiding in a monoidal category v allows many structures to be built upon that foundation. these include a monoidal 2 - category v - cat of enriched categories and functors over v, a monoidal bicategory v - mod of enriched categories and modules, a category of operads in v and a... | arxiv:math/0512165 |
we give a bibliography of works relating to homogeneous structures in the sense of fra \ " iss \ ' e, and related topics, mainly through 2016, with some narrow updating through 2021. we first give a list arranged by topics, with references to the main bibliogrphay, which follows. | arxiv:2111.15429 |
addressing the origin of the astrophysical neutrino flux observed by icecube is of paramount importance. gamma - ray bursts ( grbs ) are among the few astrophysical sources capable of achieving the required energy to contribute to such neutrino flux through p $ \ gamma $ interactions. in this work, antares data have be... | arxiv:2008.02127 |
the ability to tailor laser light on a chip using integrated photonics has allowed for extensive control over fundamental light - matter interactions in manifold quantum systems including atoms, trapped ions, quantum dots, and defect centers. free electrons, enabling high - resolution microscopy for decades, are increa... | arxiv:2105.03729 |
filtering based on singular value decomposition ( svd ) provides substantial separation of clutter, flow and noise in high frame rate ultrasound flow imaging. the use of svd as a clutter filter has greatly improved techniques such as vector flow imaging, functional ultrasound and super - resolution ultrasound localizat... | arxiv:2304.12783 |
{ \ mathrm { d } } \ circ ( f _ { \ mathrm { v } } \ circ r _ { 2 } ) & = f _ { \ mathrm { d } } \ circ f _ { \ mathrm { h } } = r _ { 1 }. \ end { aligned } } } identity element : the identity element is i d { \ displaystyle \ mathrm { id } }, as it does not change any symmetry a { \ displaystyle a } when composed wit... | https://en.wikipedia.org/wiki/Group_(mathematics) |
a ring $ r $ satisfies the { \ it strong rank condition } ( src ) if, for every natural number $ n $, the free $ r $ - submodules of $ r ^ n $ all have rank $ \ leq n $. let $ g $ be a group and $ r $ a ring strongly graded by $ g $ such that the base ring $ r _ 1 $ is a domain. using an argument originated by laurent ... | arxiv:1901.10001 |
we provide a rigorous treatment of the inverse scattering transform for the entire toda hierarchy for solutions which are asymptotically close to ( in general ) different finite - gap solutions as $ n \ to \ pm \ infty $. | arxiv:0905.1800 |
in this contribution we report on the perturbative determination of $ \ beta $ - functions and anomalous dimensions for the chiral ising, chiral xy and chiral heisenberg gross - neveu - yukawa model around $ d = 4 $ dimensions at four loops and the first pad \ ' e extrapolation of critical exponents at non - trivial, i... | arxiv:1712.03701 |
let $ \ phi $ be analytic and univalent ( { \ it i. e., } one - to - one ) in $ \ mathbb { d } : = \ { z \ in \ mathbb { c } : | z | < 1 \ } $ such that $ \ phi ( \ mathbb { d } ) $ has positive real part, is symmetric with respect to the real axis, starlike with respect to $ \ phi ( 0 ) = 1, $ and $ \ phi ' ( 0 ) > 0 ... | arxiv:2009.08683 |
large thermal changes driven by a magnetic field have been proposed for environmentally friendly energy efficient refrigeration, but only a few materials which suffer hysteresis show these giant magnetocaloric effects. here we create giant and reversible extrinsic magnetocaloric effects in epitaxial films of the ferrom... | arxiv:1209.6516 |
the exponential server timing channel is known to be the simplest, and in some sense canonical, queuing timing channel. the capacity of this infinite - memory channel is known. here, we discuss practical finite - length restrictions on the codewords and attempt to understand the maximal rate that can be achieved for a ... | arxiv:1605.07905 |
we investigate the effects of flavor su ( 3 ) - symmetry breaking on the qcd condensates, based on the nonlocal effective chiral action from the instanton vacuum, focusing on the quark - gluon mixed one. we employ two different parameterizations for the dependence of the momentum - dependent dynamical quark mass on the... | arxiv:hep-ph/0605093 |
in contrast to the well - established technique of rasterization, vectorization of images poses a significant challenge in the field of computer graphics. recent learning - based methods for converting raster images to vector formats frequently suffer from incomplete shapes, redundant path prediction, and a lack of acc... | arxiv:2410.15760 |
the type iib matrix model is conjectured to describe superstring theory nonperturbatively in terms of ten $ n \ times n $ bosonic traceless hermitian matrices $ a _ \ mu $ ( $ \ mu = 0, \ ldots, 9 $ ), whose eigenvalues correspond to $ ( 9 + 1 ) $ - dimensional space - time. quite often, this model has been investigate... | arxiv:2501.17798 |
a rapidly rotating and highly magnetized remnant neutron star ( ns ; magnetar ) could survive from a merger of double nss and drive a powerful relativistic wind. the early interaction of this wind with the previous merger ejecta can lead to shock breakout ( sbo ) emission mainly in ultraviolet and soft x - ray bands, w... | arxiv:2211.06825 |
the recent mathematical literature introduces generalised geometries which are defined by a reduction from the structure group $ so ( d, d ) $ of the vector bundle $ t ^ d \ oplus t ^ { d * } $ to a special subgroup. in this article we show that compactification of iib superstring vacua on 7 - manifolds with two covari... | arxiv:hep-th/0412280 |
transfer learning has gained attention in medical image analysis due to limited annotated 3d medical datasets for training data - driven deep learning models in the real world. existing 3d - based methods have transferred the pre - trained models to downstream tasks, which achieved promising results with only a small n... | arxiv:2104.13633 |
we consider unambiguous identification of coherent states of electromagnetic field. in particular, we study possible generalizations of an optical setup proposed in m. sedl \ ' { a } k { \ it et al. }, phys. rev. a { \ bf 76 }, 022326 ( 2007 ). we show how the unambiguous identification of coherent states can be perfor... | arxiv:0901.3206 |
the systematic study of large - scale networks has unveiled the ubiquitous presence of connectivity patterns characterized by large scale heterogeneities and unbounded statistical fluctuations. these features affect dramatically the behavior of the diffusion processes occurring on networks, determining the ensuing stat... | arxiv:q-bio/0507029 |
existing methods for simulating individual identities often oversimplify human complexity, which may lead to incomplete or flattened representations. to address this, we introduce spectrum, a grounded framework for constructing authentic llm agent personas by incorporating an individual ' s multidimensional self - conc... | arxiv:2502.08599 |
we propose a spin foam model of four - dimensional quantum gravity which is based on the integration of the tetrads in the path integral for the palatini action of general relativity. in the euclidian gravity case we show that the model can be understood as a modification of the barrett - crane spin foam model. fermion... | arxiv:gr-qc/0504131 |
the task of aesthetic quality assessment is complicated due to its subjectivity. in recent years, the target representation of image aesthetic quality has changed from a one - dimensional binary classification label or numerical score to a multi - dimensional score distribution. according to current methods, the ground... | arxiv:2010.07661 |
the traditional method for detecting extra - solar planets relies on measuring a small stellar wobble which is assumed to be caused by a planet orbiting the star. recently, it was suggested that a similar stellar wobble could be caused by a close binary system ( schneider and cabrera, 2006 ). here we show that, althoug... | arxiv:0810.0506 |
superconducting qubits in today ' s quantum processing units are typically fabricated with angle - evaporated aluminum - - aluminum - oxide - - aluminum josephson junctions. however, there is an urgent need to overcome the limited reproducibility of this approach when scaling up the number of qubits and junctions. fabr... | arxiv:2504.03481 |
existing technologies for distributed light - field mapping and light pollution monitoring ( lpm ) rely on either remote satellite imagery or manual light surveying with single - point sensors such as sqms ( sky quality meters ). these modalities offer low - resolution data that are not informative for dense light - fi... | arxiv:2408.00808 |
measured foliations at infinity of quasi - fuchsian manifolds are a natural analog at infinity to the measured bending laminations on the boundary of its convex core. we show that given a pair of arational measured foliations $ ( \ mathsf { f } _ { + }, \ mathsf { f } _ { - } ) $ which fill a closed hyperbolic surface ... | arxiv:2111.01614 |
the trojan - horse method is an indirect approach to determine the energy dependence of s factors of astrophysically relevant two - body reactions. this is accomplished by studying closely related three - body reactions under quasi - free scattering conditions. the basic theory of the trojan - horse method is developed... | arxiv:nucl-th/0401054 |
we report the result of our { \ it ab initio } calculation of the $ 6s ^ 2s _ { 1 / 2 } \ to 5d ^ 2d _ { 3 / 2 } $ parity nonconserving electric dipole transition amplitude in $ ^ { 137 } \ text { ba } ^ + $ based on relativistic coupled - cluster theory. considering single, double and partial triple excitations, we ha... | arxiv:physics/0509130 |
we construct five dimensional black rings in global anti - de sitter space using numerical methods. these rings satisfy the bps bound $ | j | < m \ ell $, but the angular velocity always violates the hawking - reall bound $ | \ omega _ h \ ell | \ leq 1 $, indicating that they should be unstable under superradiance. at... | arxiv:1412.5680 |
' bare ' active galactic nuclei ( agn ) are a subclass of type 1 agn that show little or no intrinsic absorption. they offer an unobscured view of the central regions of the agn and therefore serve as ideal targets to study the relativistic reflection features originating from the innermost regions of the accretion dis... | arxiv:2409.01395 |
the integration of tabular data from diverse sources is often hindered by inconsistencies in formatting and representation, posing significant challenges for data analysts and personal digital assistants. existing methods for automating tabular data transformations are limited in scope, often focusing on specific types... | arxiv:2411.17110 |
the mond modified gravity paradigm, best known for its agreement with galactic rotation curve data, is difficult to devise laboratory tests for. mond ' s predictions differ substantially from newtonian gravity only in the case of very small accelerations ( $ a < a _ 0 = 1. 2 \ times10 ^ { - 10 } ~ \ mathrm { m / s } ^ ... | arxiv:2410.01513 |
) $ are integral, in the sense that the actions have coefficients in the ring of cyclotomic integers $ \ mathbb { z } [ \ zeta ] $, when expressed in these bases. | arxiv:2212.10940 |
low - dimensional periodic arrays of scatterers with a moving point particle are ideal models for studying deterministic diffusion. for such systems the diffusion coefficient is typically an irregular function under variation of a control parameter. here we propose a systematic scheme of how to approximate deterministi... | arxiv:nlin/0202040 |
we propose a new conditional bekk matrix - f ( cbf ) model for the time - varying realized covariance ( rcov ) matrices. this cbf model is capable of capturing heavy - tailed rcov, which is an important stylized fact but could not be handled adequately by the wishart - based models. to further mimic the long memory fea... | arxiv:1903.12077 |
despite being responsible for state - of - the - art results in several computer vision and natural language processing tasks, neural networks have faced harsh criticism due to some of their current shortcomings. one of them is that neural networks are correlation machines prone to model biases within the data instead ... | arxiv:2211.05617 |
score - based models, trained with denoising score matching, are remarkably effective in generating high dimensional data. however, the high variance of their training objective hinders optimisation. we attempt to reduce it with a control variate, derived via a $ k $ - th order taylor expansion on the training objectiv... | arxiv:2408.12270 |
speaker modeling is essential for many related tasks, such as speaker recognition and speaker diarization. the dominant modeling approach is fixed - dimensional vector representation, i. e., speaker embedding. this paper introduces a research and production oriented speaker embedding learning toolkit, wespeaker. wespea... | arxiv:2210.17016 |
detachment, an important mechanism for reducing target heat deposition, is achieved through reductions in power, particle and momentum ; which are induced through plasma - atom and plasma - molecule interactions. experimental research in how those reactions precisely contribute to detachment is limited. in this work, w... | arxiv:2008.00288 |
the determination of the stiffness center of a machine tool is a major element for knowing the dynamic behavior of this one. this stiffness center can be obtained from a static characterization of the machine tool. for an operation of turning, we present an experimental protocol to determine the stiffness matrix, then ... | arxiv:0908.1373 |
the habitable zone ( hz ) is commonly defined as the range of distances from a host star within which liquid water, a key requirement for life, may exist on a planet ' s surface. substantially more co2 than present in earth ' s modern atmosphere is required to maintain clement temperatures for most of the hz, with seve... | arxiv:1902.04720 |
there had been well known claims of ` ` provably unbreakable ' ' quantum protocols for bit commitment and coin tossing. however, we, and independently mayers, showed that all proposed quantum bit commitment ( and therefore coin tossing ) schemes are, in principle, insecure because the sender, alice, can always cheat su... | arxiv:quant-ph/9605026 |
in this paper we formulate the least action principle for an organized system as the minimum of the total sum of the actions of all of the elements. this allows us to see how this most basic law of physics determines the development of the system towards states with less action - organized states. also we state that th... | arxiv:1004.3518 |
we consider the geodesic flow of a compact connected rank 1 surface. we prove a formula for the topological pressure as the exponential growth rate of rank 1 periodic geodesics generalizing a previous result of k. gelfert and b. schapira [ 12 ]. | arxiv:1606.07771 |
phase stability and properties of two - dimensional phosphorus carbide, p $ _ x $ c $ _ { 1 - x } $, are investigated using the first - principles method in combination with cluster expansion and monte carlo simulation. monolayer p $ _ x $ c $ _ { 1 - x } $ is found to be a phase separating system which indicates diffi... | arxiv:2010.08700 |
high - order implicit shock tracking ( fitting ) is a class of high - order, optimization - based numerical methods to approximate solutions of conservation laws with non - smooth features by aligning elements of the computational mesh with non - smooth features. this ensures the non - smooth features are perfectly rep... | arxiv:2308.04065 |
configuration knobs of database systems are essential to achieve high throughput and low latency. recently, automatic tuning systems using machine learning methods ( ml ) have shown to find better configurations compared to experienced database administrators ( dbas ). however, there are still gaps to apply the existin... | arxiv:2203.14473 |
in this article, we consider the problem of determining formulas for the number of representations of a natural number $ n $ by a sum of figurate numbers with certain positive integer coefficients. to achieve this, we prove that the associated generating function gives rise to a modular form of integral weight under ce... | arxiv:2302.00964 |
thomas has recently derived scaling laws for x - ray radiation from electrons accelerated in plasma bubbles, as well as a threshold for the self - injection of background electrons into the bubble [ a. g. r. thomas, phys. plasmas 17, 056708 ( 2010 ) ]. to obtain this threshold, the equations of motion for a test electr... | arxiv:1104.2449 |
in this paper we consider the problem of finding a vector that can be written as a nonnegative integer linear combination of given 0 - 1 vectors, the generators, such that the l _ 1 - distance between this vector and a given target vector is minimized. we prove that this closest vector problem is np - hard to approxima... | arxiv:0907.0138 |
we present a new observable, position - dependent power spectrum, to measure the large - scale structure bispectrum in the squeezed configuration, where one wavenumber is much smaller than the other two. the squeezed - limit bispectrum measures how the small - scale power spectrum is modulated by a long - wavelength ov... | arxiv:1508.03256 |
this is a reply to w. zawadzki ' s paper ( arxiv : cond - mat / 0701378 ) on non - exietence of spin transverse force for a relativistic electron. the force was first proposed by the present author that the spin current will experience a transverse force in an electric field as a relativistic quantum mechanical effect,... | arxiv:cond-mat/0701700 |
we present multiplicity results for mass constrained allen - cahn equations on a riemannian manifold with boundary, considering both neumann and dirichlet conditions. these results hold under the assumptions of small mass constraint and small diffusion parameter. we obtain lower bounds on the number of solutions accord... | arxiv:2401.17847 |
the accurate prediction of patient prognosis is a critical challenge in clinical practice. with the availability of various patient information, physicians can optimize medical care by closely monitoring disease progression and therapy responses. to enable better individualized treatment, dynamic prediction models are ... | arxiv:2311.15743 |
not get new human spaceflight ability, the us risked become a second or third - rate space power. as early as the reagan administration, there had been calls for nasa to expand private sector involvement in space exploration rather than do it all in - house. in the 1990s, nasa and lockheed martin entered into an agreem... | https://en.wikipedia.org/wiki/NASA |
we construct conservative analytic flows of zero metric entropy which satisfy the classical central limit theorem. | arxiv:2210.10121 |
location of non - stationary forced oscillation ( fo ) sources can be a challenging task, especially in cases under resonance condition with natural system modes, where the magnitudes of the oscillations could be greater in places far from the source. therefore, it is of interest to construct a global time - frequency ... | arxiv:2108.08736 |
due to the recent advances of natural language processing, several works have applied the pre - trained masked language model ( mlm ) of bert to the post - correction of speech recognition. however, existing pre - trained models only consider the semantic correction while the phonetic features of words is neglected. th... | arxiv:2111.08400 |
hybrid quantum systems made of cold atoms near nanostructured surfaces are expected to open up new opportunities for the construction of quantum sensors and for quantum information. for the design of such tailored quantum systems the interaction of alkali atoms with dielectric and metallic surfaces is crucial and requi... | arxiv:1006.2946 |
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