@article{buildingsparsedeepfeedforwardnetworks,
  title = {Building Sparse Deep Feedforward Networks using Tree Receptive Fields},
  author = {Xiaopeng Li and Zhourong Chen and Nevin L. Zhang},
  year = {2018},
  eprint = {1803.05209},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1803.05209v2},
}