Why Gabor frames? Two fundamental measures of coherence and their role in model selection

Abstract

The problem of model selection arises in a number of contexts, such as subset selection in linear regression, estimation of structures in graphical models, and signal denoising. This paper studies non-asymptotic model selection for the general case of arbitrary (random or deterministic) design matrices and arbitrary nonzero entries of the signal. In this… (More)
DOI: 10.1109/JCN.2010.6388466

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