@inproceedings{wang-etal-2018-learning-ask,
    title = "Learning to Ask Questions in Open-domain Conversational Systems with Typed Decoders",
    author = "Wang, Yansen  and
      Liu, Chenyi  and
      Huang, Minlie  and
      Nie, Liqiang",
    editor = "Gurevych, Iryna  and
      Miyao, Yusuke",
    booktitle = "Proceedings of the 56th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)",
    month = jul,
    year = "2018",
    address = "Melbourne, Australia",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P18-1204/",
    doi = "10.18653/v1/P18-1204",
    pages = "2193--2203"
}