@inproceedings{counterfactualoffpolicytrainingforneural,
  title = {Counterfactual Off-Policy Training for Neural Dialogue Generation},
  author = {Qingfu Zhu and Wei-Nan Zhang and Ting Liu and William Yang Wang},
  year = {2020},
  booktitle = {EMNLP 2020 11},
  url = {https://aclanthology.org/2020.emnlp-main.276},
}