relation: http://eprints.imtlucca.it/1528/
title: Fast design of efficient dictionaries for sparse representations
creator: Rusu, Cristian
subject: QA75 Electronic computers. Computer science
description: One of the central issues in the field of sparse representations is the design of overcomplete dictionaries with a fixed sparsity level from a given dataset. This article describes a fast and efficient procedure for the design of such dictionaries. The method implements the following ideas: a reduction technique is applied to the initial dataset to speed up the upcoming procedure; the actual training procedure runs a more sophisticated iterative expanding procedure based on K-SVD steps. Numerical experiments on image data show the effectiveness of the proposed design strategy.
publisher: IEEE
date: 2012
type: Book Section
type: PeerReviewed
identifier:   Rusu, Cristian  Fast design of efficient dictionaries for sparse representations.   In:  IEEE International Workshop on Machine Learning for Signal Processing (MLSP), 2012.   IEEE, pp. 1-5.  ISBN 978-1-4673-1025-3      (2012)  
relation: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6349795&isnumber=6349703
relation: 10.1109/MLSP.2012.6349795