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The abundant spatial and angular information from light fields has allowed the development of multiple disparity estimation approaches. However, the acquisition of light fields requires high storage and processing cost, limiting the use of…

计算机视觉与模式识别 · 计算机科学 2022-09-26 Emmanuel Martinez , Edwin Vargas , Henry Arguello

Graph pattern cardinality estimation is the problem of estimating the number of embeddings of a query graph in a data graph. This fundamental problem arises, for example, during query planning in subgraph matching algorithms. There are two…

数据库 · 计算机科学 2021-03-29 Kyoungmin Kim , Hyeonji Kim , George Fletcher , Wook-Shin Han

We propose a new algorithm for envelope estimation, along with a new root n consistent method for computing starting values. The new algorithm, which does not require optimization over a Grassmannian, is shown by simulation to be much…

统计方法学 · 统计学 2015-09-15 Dennis Cook , Liliana Forzani , Zhihua Su

A new estimator for three-center two-particle Coulomb integrals is presented. Our estimator is exact for some classes of integrals and is much more efficient than the standard Schwartz counterpart due to the proper account of distance…

化学物理 · 物理学 2015-09-02 David S. Hollman , Henry F. Schaefer , Edward F. Valeev

We present a new numerical dissipation algorithm, which can be efficiently used in combination with centered finite-difference methods. We start from a formulation of centered finite-volume methods for Numerical Relativity, in which…

广义相对论与量子宇宙学 · 物理学 2009-11-13 Daniela Alic , Carles Bona , Carles Bona-Casas

We present an iterative algorithm for computing an invariant subspace associated with the algebraically smallest eigenvalues of a large sparse or structured Hermitian matrix A. We are interested in the case in which the dimension of the…

数值分析 · 数学 2015-06-22 Eugene Vecharynski , Chao Yang , John E. Pask

We present a data compression and dimensionality reduction scheme for data fusion and aggregation applications to prevent data congestion and reduce energy consumption at network connecting points such as cluster heads and gateways. Our…

网络与互联网体系结构 · 计算机科学 2014-08-14 Mohammad Abu Alsheikh , Puay Kai Poh , Shaowei Lin , Hwee-Pink Tan , Dusit Niyato

Library learning compresses a given corpus of programs by extracting common structure from the corpus into reusable library functions. Prior work on library learning suffers from two limitations that prevent it from scaling to larger, more…

编程语言 · 计算机科学 2022-12-12 David Cao , Rose Kunkel , Chandrakana Nandi , Max Willsey , Zachary Tatlock , Nadia Polikarpova

Subset selection for the rank $k$ approximation of an $n\times d$ matrix $A$ offers improvements in the interpretability of matrices, as well as a variety of computational savings. This problem is well-understood when the error measure is…

数据结构与算法 · 计算机科学 2023-04-20 David P. Woodruff , Taisuke Yasuda

We design new approximation algorithms for the problems of optimizing submodular and supermodular functions subject to a single matroid constraint. Specifically, we consider the case in which we wish to maximize a nondecreasing submodular…

数据结构与算法 · 计算机科学 2014-12-15 Maxim Sviridenko , Jan Vondrák , Justin Ward

The phase estimation algorithm is a powerful quantum algorithm with applications in cryptography, number theory, and simulation of quantum systems. We use this algorithm to simulate the time evolution of a system of two spin-1/2 particles…

量子物理 · 物理学 2021-05-12 Scott Johnstun , Jean-François Van Huele

We provide a new quantum algorithm that efficiently determines the quality of a least-squares fit over an exponentially large data set by building upon an algorithm for solving systems of linear equations efficiently (Harrow et al., Phys.…

量子物理 · 物理学 2013-01-10 Nathan Wiebe , Daniel Braun , Seth Lloyd

Large galaxy surveys demand fast and scalable estimators for anisotropic clustering statistics beyond the monopole. We present a suite of efficient FFT-based estimators for power-spectrum and bispectrum multipoles, built upon exact…

宇宙学与河外天体物理 · 物理学 2026-05-07 Yunchen Xie , Ruiyang Zhao , Gan Gu , Xiaoma Wang , Xiaoyong Mu , Yuting Wang , Gong-Bo Zhao , Florian Beutler , John A. Peacock

We present algorithms (a) for nested neural likelihood-to-evidence ratio estimation, and (b) for simulation reuse via an inhomogeneous Poisson point process cache of parameters and corresponding simulations. Together, these algorithms…

天体物理仪器与方法 · 物理学 2020-12-01 Benjamin Kurt Miller , Alex Cole , Gilles Louppe , Christoph Weniger

Variational compression can significantly lower implementation overheads for encoding the time evolution of Hamiltonians into quantum circuits. However, they usually lack global convergence guarantees and well-established scaling behavior.…

We introduce an efficient and exact algorithm, together with a faster but approximate version, which implements with a sub-quadratic complexity the hold-out derived from T-estimation. We study empirically the performance of this hold-out in…

统计计算 · 统计学 2016-08-11 Nelo Magalhães , Yves Rozenholc

Computer simulations serve as powerful tools for scientists and engineers to gain insights into complex systems. Less costly than physical experiments, computer experiments sometimes involve large number of trials. Conventional design…

统计方法学 · 统计学 2025-06-06 Xu He , Junpeng Gong , Zhaohui Li

The reduced density matrix is variationally optimized for the two-dimensional Hubbard model. Exploiting all symmetries present in the system, we have been able to study $6\times6$ lattices at various fillings and different values for the…

This paper proposes a new approach for the calibration of material parameters in local elastoplastic constitutive models. The calibration is posed as a constrained optimization problem, where the constitutive model evolution equations for a…

计算工程、金融与科学 · 计算机科学 2025-05-09 Ryan Yan , D. Thomas Seidl , Reese E. Jones , Panayiotis Papadopoulos

Computing the approximate quantiles or ranks of a stream is a fundamental task in data monitoring. Given a stream of elements $x_1, x_2, \dots, x_n$ and a query $x$, a relative-error quantile estimation algorithm can estimate the rank of…

数据结构与算法 · 计算机科学 2024-11-05 Elena Gribelyuk , Pachara Sawettamalya , Hongxun Wu , Huacheng Yu
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