To: Tom Mitchell 
Subject: Re: Matlab nnets?
Date: Wed, 30 Jan 2002 19:18:46 -0500


I have written a bunch of neural net demos that I use in conjunction
with my neural nets course.  They include perceptrons, backprop,
competitive learning, Kohonen self-organizing feature maps, EM, and
PCA/ICA.  You can find this software here:


Most people write their own neural net simulator in MATLAB because
it's only a few lines of code.

There is a MATLAB Neural Net Toolbox but it's expensive (I think
around $3K) and the version I looked at a few years ago was not very
impressive.  I think it has been improved some since then, but I still
doubt it's worth the money.

-- Dave