... showing how to estimate the independent components one-by-one. This is possible by a deflationary orthogonalization of the estimates of theindividual independent components.With every estimation ... theclassic optimization methods, for example, (stochastic) gradient methods and Newton273 Independent Component Analysis. Aapo Hyv¨arinen, Juha Karhunen, Erkki OjaCopyright2001 John Wiley & ... covariance matrix)can be utilized, and therefore, the independent components can be actually separated,which is not possible by PCA and classic factor analysis. Often, the data is preprocessed by whitening...