preprint: nonlinear blind source separation

[Luis B. Almeida]

The following preprint is available. It corresponds to a paper submitted
to ICA'99, the International Workshop on Independent Component Analysis
and Blind Source Separation, to be held in Aussois, France, in January
1999.

      Separation of nonlinear mixtures using pattern repulsion

              Goncalo C. Marques and Luis B. Almeida


                              Abstract

Blind source separation currently is a topic of great research interest.
Most of the separation methods that have been developed are applicable
only to the separation of linear mixtures. In this paper we derive a
separation method for nonlinear mixtures, inspired by an analogy with
the concept of repulsion among physical particles. Two examples of
nonlinear separation are presented.


The paper is available at

   ftp://146.193.2.131/pub/lba/papers/aussois.ps.gz
   (compressed postscript, 340 kB)

and

   ftp://146.193.2.131/pub/lba/papers/aussois.ps
   (uncompressed postscript, 2.3 MB)

Comments are welcome.
 
Luis B. Almeida
                                  Phone:  +351-1-3100246,+351-1-3544607
INESC                             Fax:    +351-1-3145843
R. Alves Redol, 9                 E-mail: lba at inesc.pt       
1000 Lisboa, Portugal             http://ilusion.inesc.pt/~lba/ 
------------------------------------------------------------------------
   *** Indonesia is killing innocent people in East Timor ***

          see   http://amadeus.inesc.pt/~jota/Timor/