@inproceedings{usranunsupervisedandreferencefree,
  title = {USR: An Unsupervised and Reference Free Evaluation Metric for Dialog Generation},
  author = {Shikib Mehri and Maxine Eskenazi},
  year = {2020},
  booktitle = {ACL 2020 6},
  eprint = {2005.00456},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2005.00456v1},
}