RETRACTED: Dynamic recovery for block sparse signals

This article has been retracted at the request of They have found that the main contributions have already appeared in the article “A Common Network Architecture Efficiently Implements a Variety of Sparsity-based Inference Problems”, A.S. Charles, P. Garrigues and C.J. Rozell. Neural Computation, 24(12), pp. 3317-3339, December 2012 here: http://www.mitpressjournals.org/doi/10.1162/NECO_a_00372#.WFuTBFV97cs.