<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Block Orthonormal Overcomplete Dictionary Learning"^^ . "In the field of sparse representations, the overcomplete dictionary learning problem is of crucial importance and has a growing application pool where it is used. In this paper we present an iterative dictionary learning algorithm based on the singular value decomposition that efficiently construct unions of orthonormal bases. The important innovation described in this paper, that affects positively the running time of the learning procedures, is the way in which the sparse representations are computed - data are reconstructed in a single orthonormal base, avoiding slow sparse approximation algorithms - how the bases in the union are used and updated individually and how the union itself is expanded by looking at the worst reconstructed data items. The numerical experiments show conclusively the speedup induced by our method when compared to previous works, for the same target representation\r\nerror."^^ . "2013-09" . . . . . . . . . . . "Bogdan"^^ . "Dumitrescu"^^ . "Bogdan Dumitrescu"^^ . . "Cristian"^^ . "Rusu"^^ . "Cristian Rusu"^^ . . . . "21st European Signal Processing Conference (EUSIPCO)"^^ . . . . . "Marrakesh, Marocco"^^ . . . . . . "Block Orthonormal Overcomplete Dictionary Learning (PDF)"^^ . . . . . "block ortho final manuscript 2.pdf"^^ . . . "Block Orthonormal Overcomplete Dictionary Learning (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Block Orthonormal Overcomplete Dictionary Learning (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Block Orthonormal Overcomplete Dictionary Learning (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Block Orthonormal Overcomplete Dictionary Learning (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #1856 \n\nBlock Orthonormal Overcomplete Dictionary Learning\n\n" . "text/html" . . . "P Philology. Linguistics"@en . . . "QA75 Electronic computers. Computer science"@en . .