Signal Recovery From Random Measurements Via Orthogonal Matching Pursuit

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Authors J. Tropp, A. Gilbert
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Paper Category
Paper Abstract This paper demonstrates theoretically and empirically that a greedy algorithm called orthogonal matching pursuit (OMP) can reliably recover a signal with m nonzero entries in dimension d given O(m ln d) random linear measurements of that signal. This is a massive improvement over previous results, which require O (m 2 ) measurements. The new results for OMP are comparable with recent results for another approach called basis pursuit (BP). In some settings, the OMP algorithm is faster and easier to implement, so it is an attractive alternative to BP for signal recovery problems.
Date of publication 2007
Code Programming Language Julia

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