TY - GEN
T1 - Learning dictionaries with graph embedding constraints
AU - Ramamurthy, Karthikeyan Natesan
AU - Thiagarajan, Jayaraman J.
AU - Sattigeri, Prasanna
AU - Spanias, Andreas
PY - 2012
Y1 - 2012
N2 - Several supervised, semi-supervised, and unsupervised machine learning schemes can be unified under the general framework of graph embedding. Incorporating graph embedding principles into sparse representation based learning schemes can provide an improved performance in several learning tasks. In this work, we propose a dictionary learning procedure for computing discriminative sparse codes that obey graph embedding constraints. In order to compute the graph-embedded sparse codes, we integrate a modified version of the sequential quadratic programming procedure with the feature sign search method. We demonstrate, using simulations with the AR face database, that the proposed approach performs better than several baseline methods in supervised and semi-supervised classification.
AB - Several supervised, semi-supervised, and unsupervised machine learning schemes can be unified under the general framework of graph embedding. Incorporating graph embedding principles into sparse representation based learning schemes can provide an improved performance in several learning tasks. In this work, we propose a dictionary learning procedure for computing discriminative sparse codes that obey graph embedding constraints. In order to compute the graph-embedded sparse codes, we integrate a modified version of the sequential quadratic programming procedure with the feature sign search method. We demonstrate, using simulations with the AR face database, that the proposed approach performs better than several baseline methods in supervised and semi-supervised classification.
UR - http://www.scopus.com/inward/record.url?scp=84876262585&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84876262585&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2012.6489385
DO - 10.1109/ACSSC.2012.6489385
M3 - Conference contribution
AN - SCOPUS:84876262585
SN - 9781467350518
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1974
EP - 1978
BT - Conference Record of the 46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012
T2 - 46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012
Y2 - 4 November 2012 through 7 November 2012
ER -