@inproceedings{groundingreferringexpressionsinimagesby,
  title = {Grounding Referring Expressions in Images by Variational Context},
  author = {Hanwang Zhang and Yulei Niu and Shih-Fu Chang},
  year = {2017},
  booktitle = {CVPR 2018 6},
  eprint = {1712.01892},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1712.01892v2},
}