@article{selforganizedhierarchicalsoftmax,
  title = {Self-organized Hierarchical Softmax},
  author = {Yikang Shen and Shawn Tan and Chrisopher Pal and Aaron Courville},
  year = {2017},
  eprint = {1707.08588},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1707.08588v1},
}