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A matrix $\Phi \in \mathbb{R}^{Q \times N}$ satisfies the restricted isometry property if $\|\Phi x\|_2^2$ is approximately equal to $\|x\|_2^2$ for all $k$-sparse vectors $x$. We give a construction of RIP matrices with the optimal $Q =…

信息论 · 计算机科学 2024-12-19 Shravas Rao

Compressed sensing was proposed by E. J. Cand\'es, J. Romberg, T. Tao, and D. Donoho for efficient sampling of sparse signals in 2006 and has vast applications in signal processing. The expicit restricted isometry property (RIP) measurement…

信息论 · 计算机科学 2015-05-29 Hao Chen

The Restricted Isometry Property (RIP) is a fundamental property of a matrix enabling sparse recovery. Informally, an m x n matrix satisfies RIP of order k in the l_p norm if ||Ax||_p \approx ||x||_p for any vector x that is k-sparse, i.e.,…

数据结构与算法 · 计算机科学 2014-04-29 Piotr Indyk , Ilya Razenshteyn

In compressed sensing, the "restricted isometry property" (RIP) is a sufficient condition for the efficient reconstruction of a nearly k-sparse vector x in C^d from m linear measurements Phi x. It is desirable for m to be small, and for Phi…

数据结构与算法 · 计算机科学 2012-11-07 Jelani Nelson , Eric Price , Mary Wootters

Practical applications of compressed sensing often restrict the choice of its two main ingredients. They may (i) prescribe using particular redundant dictionaries for certain classes of signals to become sparsely represented, or (ii)…

信号处理 · 电气工程与系统科学 2024-07-31 Jinn Ho , Wen-Liang Hwang , Andreas Heinecke

Compressed Sensing aims to capture attributes of $k$-sparse signals using very few measurements. In the standard Compressed Sensing paradigm, the $\m\times \n$ measurement matrix $\A$ is required to act as a near isometry on the set of all…

信息论 · 计算机科学 2015-05-14 Robert Calderbank , Stephen Howard , Sina Jafarpour

The Restricted Isometry Property (RIP) is a fundamental property of a matrix which enables sparse recovery. Informally, an $m \times n$ matrix satisfies RIP of order $k$ for the $\ell_p$ norm, if $\|Ax\|_p \approx \|x\|_p$ for every vector…

数据结构与算法 · 计算机科学 2015-02-24 Zeyuan Allen-Zhu , Rati Gelashvili , Ilya Razenshteyn

In this paper, we prove that the Paley graph conjecture implies that the Paley matrix has restricted isometry property (RIP) beating the square-root bottleneck for the sparsity level. Moreover, we show that the RIP of the Paley matrix…

组合数学 · 数学 2020-11-09 Shohei Satake

We prove that quaternion Gaussian random matrices satisfy the restricted isometry property (RIP) with overwhelming probability. We also explain why the restricted isometry random variables (RIV) approach is not appropriate for drawing…

概率论 · 数学 2017-05-01 Agnieszka Badeńska , Łukasz Błaszczyk

We study statistical restricted isometry, a property closely related to sparse signal recovery, of deterministic sensing matrices of size $m \times N$. A matrix is said to have a statistical restricted isometry property (StRIP) of order $k$…

信息论 · 计算机科学 2016-11-17 Alexander Barg , Arya Mazumdar , Rongrong Wang

In this paper we establish the connection between the Orthogonal Optical Codes (OOC) and binary compressed sensing matrices. We also introduce deterministic bipolar $m\times n$ RIP fulfilling $\pm 1$ matrices of order $k$ such that…

信息论 · 计算机科学 2015-03-13 Arash Amini , Farokh Marvasti

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

This paper establishes a sharp condition on the restricted isometry property (RIP) for both the sparse signal recovery and low-rank matrix recovery. It is shown that if the measurement matrix $A$ satisfies the RIP condition…

信息论 · 计算机科学 2013-02-07 T. Tony Cai , Anru Zhang

In this paper, we study the restricted isometry property of partial random circulant matrices. For a bounded subgaussian generator with independent entries, we prove that the partial random circulant matrices satisfy $s$-order RIP with high…

信息论 · 计算机科学 2018-08-23 Meng Huang , Yuxuan Pang , Zhiqiang Xu

Structures play a significant role in the field of signal processing. As a representative of structural data, low rank matrix along with its restricted isometry property (RIP) has been an important research topic in compressive signal…

信息论 · 计算机科学 2015-06-23 Xinyue Shen , Yuantao Gu

Restricted Isometry Property (RIP) is of fundamental importance in the theory of compressed sensing and forms the base of many exact and robust recovery guarantees in this field. A quantitative description of RIP involves bounding the…

信息论 · 计算机科学 2020-07-15 Gen Li , Xingyu Xu , Yuantao Gu

Some consequences of the Restricted Isometry Property (RIP) of matrices have been applied to develop a greedy algorithm called "ROMP" (Regularized Orthogonal Matching Pursuit) to recover sparse signals and to approximate non-sparse ones.…

信息论 · 计算机科学 2013-05-31 Eugenio Hernández , Daniel Vera

The fields of compressed sensing (CS) and matrix completion have shown that high-dimensional signals with sparse or low-rank structure can be effectively projected into a low-dimensional space (for efficient acquisition or processing) when…

信息论 · 计算机科学 2013-05-16 Han Lun Yap , Michael B. Wakin , Christopher J. Rozell

The restricted isometry property (RIP) is essential for the linear map to guarantee the successful recovery of low-rank matrices. The existing works show that the linear map generated by the measurement matrices with independent and…

信息论 · 计算机科学 2024-05-08 Wei Zhang , Zhenni Wang

In the context of sketching for compressive mixture modeling, we revisit existing proofs of the Restricted Isometry Property of sketching operators with respect to certain mixtures models. After examining the shortcomings of existing…

机器学习 · 统计学 2024-06-14 Ayoub Belhadji , Rémi Gribonval