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research article

Matrix Recipes for Hard Thresholding Methods

Kyrillidis, Anastasios  
•
Cevher, Volkan  orcid-logo
2014
Journal Of Mathematical Imaging And Vision

In this paper, we present and analyze a new set of low-rank recovery algorithms for linear inverse problems within the class of hard thresholding methods. We provide strategies on how to set up these algorithms via basic ingredients for different configurations to achieve complexity vs. accuracy tradeoffs. Moreover, we study acceleration schemes via memory-based techniques and randomized, I mu-approximate matrix projections to decrease the computational costs in the recovery process. For most of the configurations, we present theoretical analysis that guarantees convergence under mild problem conditions. Simulation results demonstrate notable performance improvements as compared to state-of-the-art algorithms both in terms of reconstruction accuracy and computational complexity.

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Type
research article
DOI
10.1007/s10851-013-0434-7
Web of Science ID

WOS:000330037200003

Author(s)
Kyrillidis, Anastasios  
Cevher, Volkan  orcid-logo
Date Issued

2014

Publisher

Springer Verlag

Published in
Journal Of Mathematical Imaging And Vision
Volume

48

Issue

2

Start page

235

End page

265

Subjects

Affine rank minimization

•

Hard thresholding

•

epsilon-approximation schemes

•

Randomized algorithms

Note

National Licences

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LIONS  
Available on Infoscience
February 17, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/100700
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