Talk:Independent component analysis
From Wikipedia, the free encyclopedia
The definition of negentropy you have linked to does not seem relevant to this article; could you update the negentropy article to explain the term as used in ICA literature? Thanks --Chinasaur 00:37, 16 Jun 2005 (UTC)
In literature, approximations to negentropy are not really used to separate signals. Most ICA methods are derived from the maximum likelihood theory, which is equivalent to the infoMAX theory. Both maximize the network entropy, so most methods are approximations to network entropy instead of approximations to negentropy.
See Survey on Independent Component Analysis by Aapo Hyvärinen
For a definition of negentropy see mentioned survey or the paper by
P. Comon, Independent Component Analysis - a new concept?, Signal Processing, 36:287-314, 1994. JasperKlewer 10:27, 21 March 2006 (UTC)
[edit] definition needs cleanup
Was the definition copied from another source and taken out-of-context? As a mathematician, I find it incomprehensible. Lavaka 17:33, 16 August 2006 (UTC)
[edit] Copyviol
- Source: http://www.cnl.salk.edu/~tewon/ICA/preface.html (1998)
- Diff: [1] (2005)
- No authorization is included.
- Text removed
--F. Cosoleto 16:14, 17 January 2007 (UTC)
