@article{ell1regularizedneuralnetworksare,
  title = {$\ell_1$-regularized Neural Networks are Improperly Learnable in Polynomial Time},
  author = {Yuchen Zhang and Jason D. Lee and Michael. I. Jordan},
  year = {2015},
  eprint = {1510.03528},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1510.03528v1},
}