Paper: | SPTM-P14.11 |
Session: | Sampling, Extrapolation and Interpolation II |
Time: | Friday, May 19, 16:30 - 18:30 |
Presentation: |
Poster
|
Topic: |
Signal Processing Theory and Methods: Sampling, Extrapolation, and Interpolation |
Title: |
ROW-ACTION METHODS FOR COMPRESSED SENSING |
Authors: |
Suvrit Sra, University of Texas, Austin, United States; Joel Tropp, University of Michigan, Ann Arbor, United States |
Abstract: |
\emph{Compressed Sensing} uses a small number of random, linear measurements to acquire a sparse signal. Nonlinear algorithms, such as $\ell_1$ minimization, are used to reconstruct the signal from the measured data. This paper proposes \emph{row-action} methods as a computational approach to solving the $\ell_1$ optimization problem. This paper presents a specific row-action method and provides extensive empirical evidence that it is an effective technique for signal reconstruction. This approach offers several advantages over interior-point methods, including minimal storage and computational requirements, scalability, and robustness. |