Thread Subject: changing transfer functions in nn tool box

Subject: changing transfer functions in nn tool box

From: minu k k

Date: 2 Nov, 2009 08:36:04

Message: 1 of 2

how to replace tranfer functions in the neural network tool box with a wavelet specifically gaussian?

Subject: changing transfer functions in nn tool box

From: Greg Heath

Date: 2 Nov, 2009 12:34:40

Message: 2 of 2

On Nov 2, 4:36 am, "minu k k" <min...@gmail.com> wrote:
> how to replace tranfer functions in theneuralnetwork tool box with a wavelet specifically gaussian?

I don't know. However, the code for newff and others use
transfer functions that assume a dot product input. Therefore
you cannot easily implement a Gaussian unless all vectors are
normalized.
Then ||x-y)||^2 = ||x||^2 + ||y||^2 +2*sum(x.*y) = 2+2*dotprod(x,y).

Hope this helps.

Greg

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