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The widely used nuclear norm heuristic for rank minimization problems introduces a regularization parameter which is difficult to tune. We have recently proposed a method to approximate the regularization path, i.e., the optimal solution as…

系统与控制 · 计算机科学 2015-04-22 Niclas Blomberg , Cristian R. Rojas , Bo Wahlberg

Matrix completion focuses on recovering a matrix from a small subset of its observed elements, and has already gained cumulative attention in computer vision. Many previous approaches formulate this issue as a low-rank matrix approximation…

计算机视觉与模式识别 · 计算机科学 2019-01-08 Shengke Xue , Wenyuan Qiu , Fan Liu , Xinyu Jin

Minimizing the rank of a matrix subject to constraints is a challenging problem that arises in many applications in control theory, machine learning, and discrete geometry. This class of optimization problems, known as rank minimization, is…

最优化与控制 · 数学 2016-11-17 Benjamin Recht , Weiyu Xu , Babak Hassibi

In recent years, the nuclear norm minimization (NNM) problem has been attracting much attention in computer vision and machine learning. The NNM problem is capitalized on its convexity and it can be solved efficiently. The standard nuclear…

计算机视觉与模式识别 · 计算机科学 2014-05-26 Qi Xie , Deyu Meng , Shuhang Gu , Lei Zhang , Wangmeng Zuo , Xiangchu Feng , Zongben Xu

Low-rank modeling has many important applications in computer vision and machine learning. While the matrix rank is often approximated by the convex nuclear norm, the use of nonconvex low-rank regularizers has demonstrated better empirical…

机器学习 · 计算机科学 2018-07-25 Quanming Yao , James T. Kwok , Taifeng Wang , Tie-Yan Liu

Low-rank modeling has a lot of important applications in machine learning, computer vision and social network analysis. While the matrix rank is often approximated by the convex nuclear norm, the use of nonconvex low-rank regularizers has…

数值分析 · 计算机科学 2016-05-02 Quanming Yao , James T. Kwok , Wenliang Zhong

In recent years, quaternion matrix completion (QMC) based on low-rank regularization has been gradually used in image de-noising and de-blurring.Unlike low-rank matrix completion (LRMC) which handles RGB images by recovering each color…

图像与视频处理 · 电气工程与系统科学 2021-01-08 Liqiao Yang , Kit Ian Kou , Jifei Miao

The nuclear norm minimization (NNM) is commonly used to approximate the matrix rank by shrinking all singular values equally. However, the singular values have clear physical meanings in many practical problems, and NNM may not be able to…

计算机视觉与模式识别 · 计算机科学 2019-05-13 Zhiyuan Zha , Bihan Wen , Jiachao Zhang , Jiantao Zhou , Ce Zhu

In this paper we investigate the reconstruction conditions of nuclear norm minimization for low-rank matrix recovery. We obtain sufficient conditions $\delta_{tr}<t/(4-t)$ with $0<t<4/3$ to guarantee the robust reconstruction $(z\neq0)$ or…

信息论 · 计算机科学 2020-03-11 Jianwen Huang , Jianjun Wang , Feng Zhang , Wendong Wang

Low-rank representation~(LRR) has been a significant method for segmenting data that are generated from a union of subspaces. It is, however, known that solving the LRR program is challenging in terms of time complexity and memory…

机器学习 · 统计学 2017-10-24 Jie Shen , Ping Li , Huan Xu

Matrix rank minimizing subject to affine constraints arises in many application areas, ranging from signal processing to machine learning. Nuclear norm is a convex relaxation for this problem which can recover the rank exactly under some…

计算机视觉与模式识别 · 计算机科学 2015-08-20 Zhao Kang , Chong Peng , Qiang Cheng

The Nystr\"om method is a popular choice for finding a low-rank approximation to a symmetric positive semi-definite matrix. The method can fail when applied to symmetric indefinite matrices, for which the error can be unboundedly large. In…

数值分析 · 数学 2023-10-10 Taejun Park , Yuji Nakatsukasa

Rank minimization (RM) is a wildly investigated task of finding solutions by exploiting low-rank structure of parameter matrices. Recently, solving RM problem by leveraging non-convex relaxations has received significant attention. It has…

机器学习 · 计算机科学 2018-09-17 Zaiyi Chen

This preliminary note presents a heuristic for determining rank constrained solutions to linear matrix equations (LME). The method proposed here is based on minimizing a non-convex quadratic functional, which will hence-forth be termed as…

最优化与控制 · 数学 2018-09-10 Shravan Mohan

Low rank matrix recovery is the focus of many applications, but it is a NP-hard problem. A popular way to deal with this problem is to solve its convex relaxation, the nuclear norm regularized minimization problem (NRM), which includes…

最优化与控制 · 数学 2019-09-17 Pan Shang , Lingchen Kong

Originally developed for imputing missing entries in low rank, or approximately low rank matrices, matrix completion has proven widely effective in many problems where there is no reason to assume low-dimensional linear structure in the…

统计理论 · 数学 2021-05-06 Yunhua Xiang , Tianyu Zhang , Xu Wang , Ali Shojaie , Noah Simon

The low-rank matrix approximation problem with respect to the entry-wise $\ell_{\infty}$-norm is the following: given a matrix $M$ and a factorization rank $r$, find a matrix $X$ whose rank is at most $r$ and that minimizes $\max_{i,j}…

计算复杂性 · 计算机科学 2019-08-06 Nicolas Gillis , Yaroslav Shitov

The reconstruction of low-rank matrix from its noisy observation finds its usage in many applications. It can be reformulated into a constrained nuclear norm minimization problem, where the bound $\eta$ of the constraint is explicitly given…

最优化与控制 · 数学 2022-04-14 Kexin Li , Hongwei Li , Raymond H. Chan , You-wei Wen

Low rank regularization, in essence, involves introducing a low rank or approximately low rank assumption for matrix we aim to learn, which has achieved great success in many fields including machine learning, data mining and computer…

计算机视觉与模式识别 · 计算机科学 2020-12-11 Zhanxuan Hu , Feiping Nie , Rong Wang , Xuelong Li

Many problems can be formulated as recovering a low-rank tensor. Although an increasingly common task, tensor recovery remains a challenging problem because of the delicacy associated with the decomposition of higher order tensors. To…

机器学习 · 统计学 2014-05-09 Ming Yuan , Cun-Hui Zhang