Sparse approximation and recovery by greedy algorithms in Banach spaces     Sparse approximation  recovery   greedy algorithms  Banach spaces       font style='font-size:12px;'> 2013/4/28

We study sparse approximation by greedy algorithms. We prove the Lebesgue-type inequalities for the Weak Chebyshev Greedy Algorithm (WCGA), a generalization of the Weak Orthogonal Matching Pursuit to ...

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