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We study the problem of recovering a collection of $n$ numbers from the evaluation of $m$ power sums. This yields a system of polynomial equations, which can be underconstrained ($m < n$), square ($m = n$), or overconstrained ($m > n$).…

代数几何 · 数学 2021-06-29 Hana Melánová , Bernd Sturmfels , Rosa Winter

The problem central to sparse recovery and compressive sensing is that of stable sparse recovery: we want a distribution of matrices A in R^{m\times n} such that, for any x \in R^n and with probability at least 2/3 over A, there is an…

数据结构与算法 · 计算机科学 2011-12-30 Eric Price , David P. Woodruff

A novel framework to construct an efficient sensing (measurement) matrix, called mixed adaptive-random (MAR) matrix, is introduced for directly acquiring a compressed image representation. The mixed sampling (sensing) procedure hybridizes…

信息论 · 计算机科学 2015-04-07 Jun Yang , Wei E. I. Sha , Hongyang Chao , Zhu Jin

A frame $(x_j)_{j\in J}$ for a Hilbert space $H$ allows for a linear and stable reconstruction of any vector $x\in H$ from the linear measurements $(\langle x,x_j\rangle)_{j\in J}$. However, there are many situations where some information…

The inverse scattering problems have been popular for the past thirty years. While very successful in many cases, progress has lagged when only {\em limited-aperture} measurement is available. In this paper, we perform some elementary study…

数值分析 · 数学 2018-01-09 Xiaodong Liu , Jiguang Sun

Matrix completion has become an extremely important technique as data scientists are routinely faced with large, incomplete datasets on which they wish to perform statistical inferences. We investigate how error introduced via matrix…

统计理论 · 数学 2019-07-09 Jamie Haddock , Denali Molitor , Deanna Needell , Sneha Sambandam , Joy Song , Simon Sun

This paper addresses the problem of recovering projective camera matrices from collections of fundamental matrices in multiview settings. We make two main contributions. First, given ${n \choose 2}$ fundamental matrices computed for $n$…

计算机视觉与模式识别 · 计算机科学 2021-06-08 Yoni Kasten , Amnon Geifman , Meirav Galun , Ronen Basri

Low rank model arises from a wide range of applications, including machine learning, signal processing, computer algebra, computer vision, and imaging science. Low rank matrix recovery is about reconstructing a low rank matrix from…

数值分析 · 数学 2018-09-12 Jian-Feng Cai , Ke Wei

The problem of recovering a matrix of low rank from an incomplete and possibly noisy set of linear measurements arises in a number of areas. In order to derive rigorous recovery results, the measurement map is usually modeled…

信息论 · 计算机科学 2015-07-28 Maryia Kabanava , Richard Kueng , Holger Rauhut , Ulrich Terstiege

We consider the problem of recovering sparse vectors from underdetermined linear measurements via $\ell_p$-constrained basis pursuit. Previous analyses of this problem based on generalized restricted isometry properties have suggested that…

信息论 · 计算机科学 2015-04-21 Sjoerd Dirksen , Guillaume Lecué , Holger Rauhut

We consider the problem of estimation of a low-rank matrix from a limited number of noisy rank-one projections. In particular, we propose two fast, non-convex \emph{proper} algorithms for matrix recovery and support them with rigorous…

机器学习 · 统计学 2017-05-23 Mohammadreza Soltani , Chinmay Hegde

Sparse recovery is widely applied in many fields, since many signals or vectors can be sparsely represented under some frames or dictionaries. Most of fast algorithms at present are based on solving $l^0$ or $l^1$ minimization problems and…

数值分析 · 数学 2019-03-06 Chong-Jun Li , Yi-Jun Zhong

We establish theoretical recovery guarantees of a family of Riemannian optimization algorithms for low rank matrix recovery, which is about recovering an $m\times n$ rank $r$ matrix from $p < mn$ number of linear measurements. The…

数值分析 · 数学 2016-04-12 Ke Wei , Jian-Feng Cai , Tony F. Chan , Shingyu Leung

In this paper, we consider the challenge of reconstructing jointly sparse vectors from linear measurements. Firstly, we show that by utilizing the rank of the output data matrix we can reduce the problem to a full column rank case. This…

数值分析 · 数学 2019-05-28 Armenak Petrosyan , Hoang Tran , Clayton Webster

We study the problem of recovering a structured signal from independently and identically drawn linear measurements. A convex penalty function $f(\cdot)$ is considered which penalizes deviations from the desired structure, and signal…

统计理论 · 数学 2019-06-21 Ehsan Abbasi , Fariborz Salehi , Babak Hassibi

We study coded distributed matrix multiplication from an approximate recovery viewpoint. We consider a system of $P$ computation nodes where each node stores $1/m$ of each multiplicand via linear encoding. Our main result shows that the…

信息论 · 计算机科学 2021-05-06 Haewon Jeong , Ateet Devulapalli , Viveck R. Cadambe , Flavio Calmon

We extend the theory of low-rank matrix recovery and completion to the case when Poisson observations for a linear combination or a subset of the entries of a matrix are available, which arises in various applications with count data. We…

机器学习 · 计算机科学 2016-04-20 Yang Cao , Yao Xie

Low-rank matrix recovery addresses the problem of recovering an unknown low-rank matrix from few linear measurements. Nuclear-norm minimization is a tractible approach with a recent surge of strong theoretical backing. Analagous to the…

数值分析 · 数学 2015-05-27 Yonina C. Eldar , Deanna Needell , Yaniv Plan

The most important purpose of this article is to investigate perfect reconstruction underlying range space of operators in finite dimensional Hilbert spaces by matrix methods. To this end, first we obtain more structures of the canonical…

泛函分析 · 数学 2020-08-12 Fahimeh Arabyani Neyshaburi , Rajab Ali Kamyabi-Gol

A host of problems involve the recovery of structured signals from a dimensionality reduced representation such as a random projection; examples include sparse signals (compressive sensing) and low-rank matrices (matrix completion). Given…

信息论 · 计算机科学 2012-05-22 Shirin Jalali , Arian Maleki , Richard Baraniuk