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JMLR
2010
155views more  JMLR 2010»
13 years 2 months ago
Structured Sparse Principal Component Analysis
We present an extension of sparse PCA, or sparse dictionary learning, where the sparsity patterns of all dictionary elements are structured and constrained to belong to a prespeci...
Rodolphe Jenatton, Guillaume Obozinski, Francis Ba...
JMLR
2010
163views more  JMLR 2010»
13 years 2 months ago
Dense Message Passing for Sparse Principal Component Analysis
We describe a novel inference algorithm for sparse Bayesian PCA with a zero-norm prior on the model parameters. Bayesian inference is very challenging in probabilistic models of t...
Kevin Sharp, Magnus Rattray
FGR
2011
IEEE
249views Biometrics» more  FGR 2011»
12 years 11 months ago
Principal component analysis of image gradient orientations for face recognition
Georgios Tzimiropoulos, Stefanos Zafeiriou, Maja P...
JCST
2011
88views more  JCST 2011»
12 years 10 months ago
Transfer Learning via Multi-View Principal Component Analysis
Yangsheng Ji, Jiajun Chen, Gang Niu, Lin Shang, Xi...
CSDA
2004
105views more  CSDA 2004»
13 years 7 months ago
Computational aspects of algorithms for variable selection in the context of principal components
Variable selection consists in identifying a k-subset of a set of original variables that is optimal for a given criterion of adequate approximation to the whole data set. Several...
Jorge Cadima, J. Orestes Cerdeira, Manuel Minhoto