Question: 5.19 ( ) www Derive the expression (5.85) for the outer product approximation to the Hessian matrix for a network having a single output with
5.19 () www Derive the expression (5.85) for the outer product approximation to the Hessian matrix for a network having a single output with a logistic sigmoid output-unit activation function and a cross-entropy error function, corresponding to the result (5.84) for the sum-of-squares error function.
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