Question: Consider a neural network in matrix - vector notation. Assume that the preactivation vector for layer l - 1 is given by s [ l

Consider a neural network in matrix-vector notation.
Assume that the preactivation vector for layer l-1 is given by s[l-1]=(-2,-1,3)T. As activation function f take Relu.
The weight matrix reads W[l]=([1,2,3],[2,3,4],[3,4,5]).
Compute the bottom right entry of the single-layer Jacobian J[l], i.e.J3,3[l].
The answer is an integer number.
Antwort:
Consider a neural network in matrix-vector notation. Assume that the preactivation

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