On the exponential convergence of matching pursuits in quasi-incoherent dictionaries

Abstract

The purpose of this correspondence is to extend results by Villemoes and Temlyakov about exponential convergence of Matching Pursuit (MP) with some structured dictionaries for "simple" functions in finite or infinite dimension. The results are based on an extension of Tropp's results about Orthogonal Matching Pursuit (OMP) in finite dimension, with the… (More)
DOI: 10.1109/TIT.2005.860474

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