@article{learningsparsedeepfeedforwardnetworksvia,
  title = {Learning Sparse Deep Feedforward Networks via Tree Skeleton Expansion},
  author = {Zhourong Chen and Xiaopeng Li and Nevin L. Zhang},
  year = {2018},
  eprint = {1803.06120},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1803.06120v1},
}