Robust and Resource Efficient Identification of Two Hidden Layer Neural Networks

30 Jun 2019Massimo FornasierTimo KlockMichael Rauchensteiner

We address the structure identification and the uniform approximation of two fully nonlinear layer neural networks of the type $f(x)=1^T h(B^T g(A^T x))$ on $\mathbb R^d$ from a small number of query samples. We approach the problem by sampling actively finite difference approximations to Hessians of the network... (read more)

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