@inproceedings{learningtonavigateunseenenvironmentsback,
  title = {Learning to Navigate Unseen Environments: Back Translation with Environmental Dropout},
  author = {Hao Tan and Licheng Yu and Mohit Bansal},
  year = {2019},
  booktitle = {NAACL 2019 6},
  eprint = {1904.04195},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1904.04195v1},
}