relation: http://eprints.imtlucca.it/1917/
title: Explicit Shift-Invariant Dictionary Learning
creator: Rusu, Cristian
creator: Dumitrescu, Bogdan
creator: Tsaftaris, Sotirios A.
subject: QA75 Electronic computers. Computer science
subject: Z004 Books. Writing. Paleography
description: In this letter we give efficient solutions to the construction of structured dictionaries for sparse representations. We study circulant and Toeplitz structures and give fast algorithms based on least squares solutions. We take advantage of explicit circulant structures and we apply the resulting algorithms to shift-invariant learning scenarios. Synthetic experiments and comparisons with state-of-the-art methods show the superiority of the proposed methods.
publisher: IEEE
date: 2014
type: Article
type: PeerReviewed
identifier:   Rusu, Cristian and Dumitrescu, Bogdan and Tsaftaris, Sotirios A.  Explicit Shift-Invariant Dictionary Learning.  IEEE Signal Processing Letters, 21 (1).  pp. 6-9.  ISSN 1070-9908      (2014)  
relation: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6655924&isnumber=6655913
relation: 10.1109/LSP.2013.2288788