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CPN:

Counterpropagation doesn't need the output layer. The output is calculated as a weighted sum of the activations of the hidden units. Because only one hidden unit has the activation 1 and all others the activation 0, the output can be calculated with the winner unit, using the weights from this unit to the output.



Niels Mache
Wed May 17 11:23:58 MET DST 1995