Manual Calculation of Neural Networks
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Conor O' Sullivan
on 15 Jan 2015
Answered: Greg Heath
on 18 Jan 2015
Is there a way to manually follow the equations on a neural network that has been trained and tested using the ANN toolbox?
I want to see if I can follow the equations and see where my app that I've created that replicates the values and calculations of my trained network is differing.
Thanks,
C
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Accepted Answer
Greg Heath
on 18 Jan 2015
If the classes are not mutually exclusive (e.g., tall, dark, handsome) logsig is an appropriate output transfer function for approximating input-conditional posterior probabilities.
For mutually exclusive classes, the probabilities sum to one. The unit-sum softmax is appropriate.
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Greg Heath
on 16 Jan 2015
Follow? Not exactly. However you can reproduce the results. For FITNET,
yn = b2+ LW * tanh( b1 + IW * xn );
where
xn and yn are the normalized input and output.
What net and options are you using?
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