Charles Colbourn > AI-NNFlex > AI::NNFlex::Mathlib

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NAME ^

AI::NNFlex::Mathlib - miscellaneous mathematical functions for the AI::NNFlex NN package

DESCRIPTION ^

The AI::NNFlex::Mathlib package contains activation and error functions. At present there are the following:

Activation functions

Error functions

If you want to implement your own activation/error functions, you can add them to this module. All activation functions to be used by certain types of net (like Backprop) require an additional function <function name>_slope, which returns the 1st order derivative of the function.

This rule doesn't apply to all network types. Hopfield for example requires no slope calculation.

CHANGES ^

v1.2 includes hopfield_threshold

COPYRIGHT ^

Copyright (c) 2004-2005 Charles Colbourn. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

CONTACT ^

 charlesc@nnflex.g0n.net
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