ℓ1-regularized Neural Networks are Improperly Learnable in Polynomial Time

  title={ℓ1-regularized Neural Networks are Improperly Learnable in Polynomial Time},
  author={Yuchen Zhang and Jason D. Lee and Michael I. Jordan},
We study the improper learning of multi-layer neural networks. Suppose that the neural network to be learned has k hidden layers and that the l1-norm of the incoming weights of any neuron is bounded by L. We present a kernel-based method, such that with probability at least 1− δ, it learns a predictor whose generalization error is at most ǫ worse than that of the neural network. The sample complexity and the time complexity of the presented method are polynomial in the input dimension and in (1… CONTINUE READING
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