Question: 5.20 ( ) Derive an expression for the outer product approximation to the Hessian matrix for a network having K outputs with a softmax output-unit

5.20 () Derive an expression for the outer product approximation to the Hessian matrix for a network having K outputs with a softmax output-unit activation function and a cross-entropy error function, corresponding to the result (5.84) for the sum-ofsquares error function.

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