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This letter proposes to estimate low-rank matrices by formulating a convex optimization problem with non-convex regularization. We employ parameterized non-convex penalty functions to estimate the non-zero singular values more accurately…

计算机视觉与模式识别 · 计算机科学 2016-04-14 Ankit Parekh , Ivan W. Selesnick

We investigate rank revealing factorizations of $m \times n$ polynomial matrices $P(\lambda)$ into products of three, $P(\lambda) = L(\lambda) E(\lambda) R(\lambda)$, or two, $P(\lambda) = L(\lambda) R(\lambda)$, polynomial matrices. Among…

数值分析 · 数学 2024-10-04 Andrii Dmytryshyn , Froilán Dopico , Paul Van Dooren

We show that the set of $n \times n$ complex symmetric matrix pencils of rank at most $r$ is the union of the closures of $\lfloor r/2\rfloor +1$ sets of matrix pencils with some, explicitly described, complete eigenstructures. As a…

谱理论 · 数学 2018-08-10 Fernando De Terán , Andrii Dmytryshyn , Froilán M. Dopico

For the problems of low-rank matrix completion, the efficiency of the widely-used nuclear norm technique may be challenged under many circumstances, especially when certain basis coefficients are fixed, for example, the low-rank correlation…

最优化与控制 · 数学 2015-06-23 Weimin Miao , Shaohua Pan , Defeng Sun

Low-rank representation learning has emerged as a powerful tool for recovering missing values in power load data due to its ability to exploit the inherent low-dimensional structures of spatiotemporal measurements. Among various techniques,…

机器学习 · 计算机科学 2025-06-24 Yan Xia , Hao Feng , Hongwei Sun , Junjie Wang , Qicong Hu

Matrix rank minimization problems are gaining a plenty of recent attention in both mathematical and engineering fields. This class of problems, arising in various and across-discipline applications, is known to be NP-hard in general. In…

最优化与控制 · 数学 2010-10-06 Yun-Bin Zhao

In this paper we introduce min-plus low rank matrix approximation. By using min and plus rather than plus and times as the basic operations in the matrix multiplication; min-plus low rank matrix approximation is able to detect…

数值分析 · 数学 2017-08-23 James Hook

Recent efforts to unravel the mystery of implicit regularization in deep learning have led to a theoretical focus on matrix factorization -- matrix completion via linear neural network. As a step further towards practical deep learning, we…

机器学习 · 计算机科学 2021-06-10 Noam Razin , Asaf Maman , Nadav Cohen

Trace norm regularization is a widely used approach for learning low rank matrices. A standard optimization strategy is based on formulating the problem as one of low rank matrix factorization which, however, leads to a non-convex problem.…

机器学习 · 计算机科学 2017-08-01 Carlo Ciliberto , Dimitris Stamos , Massimiliano Pontil

Differentiable systems in this paper means systems of equations that are described by differentiable real functions in real matrix variables. This paper proposes algorithms for finding minimal rank solutions to such systems over (arbitrary…

最优化与控制 · 数学 2017-05-30 Thanh Hieu Le

Recently, there is a revival of interest in low-rank matrix completion-based unsupervised learning through the lens of dual-graph regularization, which has significantly improved the performance of multidisciplinary machine learning tasks…

机器学习 · 计算机科学 2022-09-07 Yangge Chen , Lei Cheng , Yik-Chung Wu

A new approach is established to computing the image of a rational map, whereby the use of approximation complexes is complemented with a detailed analysis of the torsion of the symmetric algebra in certain degrees. In the case the map is…

交换代数 · 数学 2009-11-16 Laurent Busé , Marc Chardin , Aron Simis

In this paper, a link between polymatroid theory and locally repairable codes (LRCs) is established. The codes considered here are completely general in that they are subsets of $A^n$, where $A$ is an arbitrary finite set. Three classes of…

信息论 · 计算机科学 2015-10-12 Thomas Westerbäck , Ragnar Freij-Hollanti , Camilla Hollanti

Integral equations are commonly encountered when solving complex physical problems. Their discretization leads to a dense kernel matrix that is block or hierarchically low-rank. This paper proposes a new way to build a low-rank…

数值分析 · 数学 2020-01-28 Léopold Cambier , Eric Darve

We present a method to linearize, without approximation, a specific class of eigenvalue problems with eigenvector nonlinearities (NEPv), where the nonlinearities are expressed by scalar functions that are defined by a quotient of linear…

数值分析 · 数学 2021-05-24 Rob Claes , Elias Jarlebring , Karl Meerbergen , Parikshit Upadhyaya

We consider the problem of approximating an affinely structured matrix, for example a Hankel matrix, by a low-rank matrix with the same structure. This problem occurs in system identification, signal processing and computer algebra, among…

数值分析 · 数学 2014-06-25 Mariya Ishteva , Konstantin Usevich , Ivan Markovsky

Linear constraints for a matrix polytope with no fractional vertex are investigated as intersecting research among permutation codes, rank modulations, and linear programming methods. By focusing the discussion to the block structure of…

组合数学 · 数学 2012-02-07 Manabu Hagiwara

We introduce a novel stochastic regularization technique for deep neural networks, which decomposes a layer into multiple branches with different parameters and merges stochastically sampled combinations of the outputs from the branches…

机器学习 · 计算机科学 2019-10-04 Wonpyo Park , Paul Hongsuck Seo , Bohyung Han , Minsu Cho

We revisit the landmark paper [D. S. Mackey, N. Mackey, C. Mehl, and V. Mehrmann, SIAM J. Matrix Anal. Appl., 28 (2006), pp.~971--1004] and, by viewing matrices as coefficients for bivariate polynomials, we provide concise proofs for key…

数值分析 · 数学 2016-10-07 Yuji Nakatsukasa , Vanni Noferini , Alex Townsend

Locally recoverable codes (LRCs) were proposed for the recovery of data in distributed and cloud storage systems about nine years ago. A lot of progress on the study of LRCs has been made by now. However, there is a lack of general theory…

信息论 · 计算机科学 2021-02-02 Pan Tan , Cuiling Fan , Cunsheng Ding , Zhengchun Zhou