Neural net
mark mitchell
cowhead at mac.com
Thu Oct 10 05:17:01 EDT 2002
Jim wrote:
> A recent
> problem given in my Artificial Intelligence class was to write a
> three-layer neural network (1 hidden layer) and then write a
> backpropagation routine to train it on handwritten digit data (in
> Scheme, of all programming lanauges!) Now, In Scheme, I'm probably
> going to get about 50 percent of it done. In C, I think I could have
> gotten about 70-100 percent of it done. In Rev, I think I might have
> been able to finish it, as well as making a nice graphical
> representation of the network and a testing routine, almost "for free"
It's funny you mention this as I was JUST about to write and ask
(following the 'expert system' thread) if someone had implemented such a
beast yet. I would like to make a simple neural net with one or two
layers of hidden units to implement some experiments I'm doing. It
doesn't seem like it would be that tough to do in rev/meta. I was
thinking of just using lines in a field/variable to represent each node,
with the rest of the information contained in various hierarchical items
in the lines, but perhaps there is a better way of doing it or someone
already has something finished that they could share. Anyone?
mark mitchell
Japan
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