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A popular numerical method to compute SOS (sum of squares of polynomials) decompositions for polynomials is to transform the problem into semi-definite programming (SDP) problems and then solve them by SDP solvers. In this paper, we focus…

最优化与控制 · 数学 2015-01-05 Liyun Dai , Bican Xia

We propose a new hypermatrix singular value decomposition based upon the spectral decomposition of the symmetric products of transposes.

谱理论 · 数学 2020-04-23 Edinah K. Gnang , Fan Tian

This paper studies the numerical methods to approximate the solutions for a sort of McKean-Vlasov neutral stochastic differential delay equations (MV-NSDDEs) that the growth of the drift coefficients is super-linear. First, We obtain that…

概率论 · 数学 2022-11-04 Yuanping Cui , Xiaoyue Li , Yi Liu , Chenggui Yuan

We present and analyze a micro/macro acceleration technique for the Monte Carlo simulation of stochastic differential equations (SDEs) in which there is a separation between the (fast) time-scale on which individual trajectories of the SDE…

数值分析 · 数学 2011-11-08 Kristian Debrabant , Giovanni Samaey

Singular Value Decomposition (SVD) is the basic body of many statistical algorithms and few users question whether SVD is properly handling its job. SVD aims at evaluating the decomposition that best approximates a data matrix, given some…

应用统计 · 统计学 2007-09-06 William Rey

Neural operators have emerged as a promising paradigm for learning solution operators of partial differential equa- tions (PDEs) directly from data. Existing methods, such as those based on Fourier or graph techniques, make strong as-…

机器学习 · 计算机科学 2025-11-14 Noam Koren , Ralf J. J. Mackenbach , Ruud J. G. van Sloun , Kira Radinsky , Daniel Freedman

The singular value decomposition (SVD) and the principal component analysis are fundamental tools and probably the most popular methods for data dimension reduction. The rapid growth in the size of data matrices has lead to a need for…

统计理论 · 数学 2020-02-03 Ting-Li Chen , Su-Yun Huang , Weichung Wang

In this paper, we propose a variable metric method for unconstrained multiobjective optimization problems (MOPs). First, a sequence of points is generated using different positive definite matrices in the generic framework. It is proved…

最优化与控制 · 数学 2022-07-18 Jian Chen , Gaoxi Li , Xinmin Yang

Virtual network embedding (VNE) is an crucial part of network virtualization (NV), which aims to map the virtual networks (VNs) to a shared substrate network (SN). With the emergence of various delay-sensitive applications, how to improve…

网络与互联网体系结构 · 计算机科学 2022-02-04 Peiying Zhang , Xue Pang , Yongjing Ni , Haipeng Yao , Xin Li

Dynamic mode decomposition (DMD), which the family of singular-value decompositions (SVD), is a popular tool of data-driven regression. While multiple numerical tests demonstrated the power and efficiency of DMD in representing data (i.e.,…

数值分析 · 数学 2019-05-07 Hannah Lu , Daniel M. Tartakovsky

Large Language Models (LLMs) have scaled rapidly in size and complexity, requiring increasingly intricate parallelism for distributed training, such as 3D parallelism. This sophistication motivates a shift toward simpler, more debuggable…

The ECME algorithm has proven to be an effective way of accelerating the EM algorithm for many problems. Recognising the limitation of using prefixed acceleration subspace in ECME, we propose the new Dynamic ECME (DECME) algorithm which…

统计计算 · 统计学 2010-04-06 Yunxiao He , Chuanhai Liu

The Voronoi Entropy (VE) and the continuous measure of symmetry (CSM) characterize the orderliness of a set of points on a 2D plane. The Voronoi entropy is the Shannon entropy of the Voronoi tessellation of the plane into polygons,…

统计力学 · 物理学 2024-10-30 Edward Bormashenko , Shraga Shoval , Mark Frenkel , Michael Nosonovsky

Various Neural Networks employ time-consuming matrix operations like matrix inversion. Many such matrix operations are faster to compute given the Singular Value Decomposition (SVD). Previous work allows using the SVD in Neural Networks…

Sparse support vector machine (SVM) is a popular classification technique that can simultaneously learn a small set of the most interpretable features and identify the support vectors. It has achieved great successes in many real-world…

机器学习 · 统计学 2019-07-19 Weizhong Zhang , Bin Hong , Wei Liu , Jieping Ye , Deng Cai , Xiaofei He , Jie Wang

Singular Value Decomposition (SVD) has recently seen a surge of interest as a simple yet powerful tool for large language models (LLMs) compression, with a growing number of works demonstrating 20-80% parameter reductions at minimal…

机器学习 · 计算机科学 2025-08-05 Zishan Shao , Yixiao Wang , Qinsi Wang , Ting Jiang , Zhixu Du , Hancheng Ye , Danyang Zhuo , Yiran Chen , Hai Li

A new, high-order slope-limiting procedure for the Piecewise Parabolic Method (PPM) and the Piecewise Quartic Method (PQM) is described. Following a Weighted Essentially Non-Oscillatory (WENO)-type paradigm, the proposed slope-limiter seeks…

计算物理 · 物理学 2016-06-28 Darren Engwirda , Maxwell Kelley

In this paper, we study robust tensor completion by using transformed tensor singular value decomposition (SVD), which employs unitary transform matrices instead of discrete Fourier transform matrix that is used in the traditional tensor…

机器学习 · 计算机科学 2019-07-03 Guangjing Song , Michael K. Ng , Xiongjun Zhang

In this work, we propose a new stochastic domain decomposition method for solving steady-state partial differential equations (PDEs) with random inputs. Based on the efficiency of the Variable-separation (VS) method in simulating stochastic…

数值分析 · 数学 2025-02-06 Liang Chen , Yaru Chen , Qiuqi Li , Zhiwen Zhang

Inverse Vandermonde matrix calculation is a long-standing problem to solve nonsingular linear system $Vc=b$ where the rows of a square matrix $V$ are constructed by progression of the power polynomials. It has many applications in…

数值分析 · 数学 2019-09-19 Mahdi S. Hosseini , Alfred Chen , Konstantinos N. Plataniotis