@article{generalizingpoolingfunctionsin,
  title = {Generalizing Pooling Functions in Convolutional Neural Networks: Mixed, Gated, and Tree},
  author = {Chen-Yu Lee and Patrick W. Gallagher and Zhuowen Tu},
  year = {2015},
  eprint = {1509.08985},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1509.08985v2},
}