[comp.ai.neural-nets] existing programs for backpropagation

sonia@singsing.berkeley.edu (Sonia Marx) (01/27/91)

I'm writing a program in C++ to structure a neural
net based on prior knowledge about a dataset and then
learn the dataset using backpropagation.  I've been
getting very discouraging results, but I'm not sure
if they're due to faults in the theory or in my program.
Does anyone out there have code to do backpropagation
(so I can compare results), or code to display the 
changing weights in the network as it runs, preferably
compatible with X windows?  

Also, if anyone is working on growing nets incrementally,
I'd love to talk with you about it, since that will be
the next stage of my project.

Many thanks, and my apologies if this is the Nth request
of this form...

Sonia Marx
sonia@guard.berkeley.edu