Independent component analysis, a new concept?
Signal Processing - Special issue on higher order statistics
Undercomplete Blind Subspace Deconvolution Via Linear Prediction
ECML '07 Proceedings of the 18th European conference on Machine Learning
Blind separation of instantaneous mixtures of dependent sources
ICA'07 Proceedings of the 7th international conference on Independent component analysis and signal separation
Independent subspace analysis is unique, given irreducibility
ICA'07 Proceedings of the 7th international conference on Independent component analysis and signal separation
Modeling and estimation of dependent subspaces with non-radially symmetric and skewed densities
ICA'07 Proceedings of the 7th international conference on Independent component analysis and signal separation
Colored subspace analysis: dimension reduction based on a signal's autocorrelation structure
IEEE Transactions on Circuits and Systems Part I: Regular Papers
Strong sub-and super-gaussianity
LVA/ICA'10 Proceedings of the 9th international conference on Latent variable analysis and signal separation
Independent vector analysis: an extension of ICA to multivariate components
ICA'06 Proceedings of the 6th international conference on Independent Component Analysis and Blind Signal Separation
Uniqueness of non-gaussian subspace analysis
ICA'06 Proceedings of the 6th international conference on Independent Component Analysis and Blind Signal Separation
Mutual information approach to blind separation of stationary sources
IEEE Transactions on Information Theory
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We consider the Independent Subspace Analysis problem from the point of view of contrast functions, showing that contrast functions are able to partially solve the ISA problem. That is, basic ICA can solve the ISA problem up to within-subspace separation/analysis. We define sub- and super-Gaussian subspaces and extend to ISA a previous result on freedom of ICA from local optima. We also consider new types of dependent densities that satisfy or violate the entropy power inequality (EPI) condition.