@inproceedings{zhang-zhang-2019-hierarchy,
    title = "Hierarchy Response Learning for Neural Conversation Generation",
    author = "Zhang, Bo  and
      Zhang, Xiaoming",
    editor = "Inui, Kentaro  and
      Jiang, Jing  and
      Ng, Vincent  and
      Wan, Xiaojun",
    booktitle = "Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP)",
    month = nov,
    year = "2019",
    address = "Hong Kong, China",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/D19-1186/",
    doi = "10.18653/v1/D19-1186",
    pages = "1772--1781"
}