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Orthogonal Matching Pursuit (OMP) is the canonical greedy algorithm for sparse approximation. In this paper we demonstrate that the restricted isometry property (RIP) can be used for a very straightforward analysis of OMP. Our main…

数值分析 · 数学 2009-09-02 Mark A. Davenport , Michael B. Wakin

Compressed sensing (CS) is an emerging field that has attracted considerable research interest over the past few years. Previous review articles in CS limit their scope to standard discrete-to-discrete measurement architectures using…

信息论 · 计算机科学 2011-07-29 Marco F. Duarte , Yonina C. Eldar

Matrices with the restricted isometry property (RIP) are of particular interest in compressed sensing. To date, the best known RIP matrices are constructed using random processes, while explicit constructions are notorious for performing at…

泛函分析 · 数学 2014-03-17 Dustin G. Mixon

Compressive sensing (CS) combines data acquisition with compression coding to reduce the number of measurements required to reconstruct a sparse signal. In optics, this usually takes the form of projecting the field onto sequences of random…

信息论 · 计算机科学 2018-10-24 Davood Mardani , H. Esat Kondakci , Lane Martin , Ayman F. Abouraddy , George K. Atia

In this paper, we study joint network coding and distributed source coding of inter-node dependent messages, with the perspective of compressed sensing. Specifically, the theoretical guarantees for robust $\ell_1$-min recovery of an…

信息论 · 计算机科学 2012-03-16 Mahdy Nabaee , Fabrice Labeau

This paper is concerned with low-rank matrix optimization, which has found a wide range of applications in machine learning. This problem in the special case of matrix sensing has been studied extensively through the notion of Restricted…

最优化与控制 · 数学 2023-03-17 Ziye Ma , Somayeh Sojoudi

In this paper, the problem of training signal design for intelligent reflecting surface (IRS)-assisted millimeter-wave (mmWave) communication under a sparse channel model is considered. The problem is approached based on the…

信息论 · 计算机科学 2020-12-29 Song Noh , Heejung Yu , Youngchul Sung

Sparse subspace clustering (SSC), as one of the most successful subspace clustering methods, has achieved notable clustering accuracy in computer vision tasks. However, SSC applies only to vector data in Euclidean space. As such, there is…

计算机视觉与模式识别 · 计算机科学 2016-03-08 Ming Yin , Yi Guo , Junbin Gao , Zhaoshui He , Shengli Xie

This paper deals with the computational complexity of conditions which guarantee that the NP-hard problem of finding the sparsest solution to an underdetermined linear system can be solved by efficient algorithms. In the literature, several…

最优化与控制 · 数学 2013-11-05 Andreas M. Tillmann , Marc E. Pfetsch

The task of compressed sensing is to recover a sparse vector from a small number of linear and non-adaptive measurements, and the problem of finding a suitable measurement matrix is very important in this field. While most recent works…

信息论 · 计算机科学 2012-12-18 Yi-Zheng Fan , Tao Huang , Ming Zhu

In colocated multiple-input multiple-output (MIMO) radar using compressive sensing (CS), a receive node compresses its received signal via a linear transformation, referred to as measurement matrix. The samples are subsequently forwarded to…

信息论 · 计算机科学 2015-05-27 Y. Yu , A. P. Petropulu , H. V. Poor

We propose a new method for reconstruction of sparse signals with and without noisy perturbations, termed the subspace pursuit algorithm. The algorithm has two important characteristics: low computational complexity, comparable to that of…

数值分析 · 计算机科学 2009-01-08 Wei Dai , Olgica Milenkovic

In industrial commodity recommendation systems, the representation quality of Item-Id vocabularies directly impacts the scalability and generalization ability of recommendation models. A key challenge is that traditional Item-Id…

机器学习 · 计算机科学 2026-03-20 Chen Sun , Beilin Xu , Boheng Tan , Jiacheng Wang , Yuefeng Sun , Rite Bo , Ying He , Yaqiang Zang , Pinghua Gong

The sparse optimization problems arise in many areas of science and engineering, such as compressed sensing, image processing, statistical and machine learning. The $\ell_{0}$-minimization problem is one of such optimization problems, which…

最优化与控制 · 数学 2019-04-23 Jialiang Xu , Yun-Bin Zhao

In this paper, we study a general low-rank matrix recovery problem with linear measurements corrupted by some noise. The objective is to understand under what conditions on the restricted isometry property (RIP) of the problem local search…

最优化与控制 · 数学 2023-07-26 Ziye Ma , Yingjie Bi , Javad Lavaei , Somayeh Sojoudi

We analyze a random projection method for adjacency matrices, studying its utility in representing sparse graphs. We show that these random projections retain the functionality of their underlying adjacency matrices while having extra…

数据结构与算法 · 计算机科学 2023-09-06 Frank Qiu

The emerging generation of radio-interferometric (RI) arrays are set to form images of the sky with a new regime of sensitivity and resolution. This implies a significant increase in visibility data volumes, which for single-frequency…

天体物理仪器与方法 · 物理学 2025-12-04 Olivier Leblanc , Chung San Chu , Laurent Jacques , Yves Wiaux

The MUSIC algorithm, with its extension for imaging sparse {\em extended} objects, is analyzed by compressed sensing (CS) techniques. The notion of restricted isometry property (RIP) and an upper bound on the restricted isometry constant…

信息论 · 计算机科学 2015-05-19 Albert C. Fannjiang

Reconstructing high-dimensional spatiotemporal fields from sparse point-sensor measurements is a central challenge in learning parametric PDE dynamics. Existing approaches often struggle to generalize across trajectories and parameter…

机器学习 · 计算机科学 2026-02-05 Yanjie Tong , Peng Chen

Compressed sensing magnetic resonance imaging (CS-MRI) heavily relies on the low mutual coherence between the measurement matrix and the sparsity basis. However, under highly accelerated Cartesian undersampling, the severe structural…

信号处理 · 电气工程与系统科学 2026-05-05 Siyuan Feng