@article{roleofzerosynapsesinunsupervisedfeature,
  title = {Role of zero synapses in unsupervised feature learning},
  author = {Haiping Huang},
  year = {2017},
  eprint = {1703.07943},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1703.07943v4},
}