@inproceedings{ai-litman-2009-setting,
    title = "Setting Up User Action Probabilities in User Simulations for Dialog System Development",
    author = "Ai, Hua  and
      Litman, Diane",
    editor = "Su, Keh-Yih  and
      Su, Jian  and
      Wiebe, Janyce  and
      Li, Haizhou",
    booktitle = "Proceedings of the Joint Conference of the 47th Annual Meeting of the {ACL} and the 4th International Joint Conference on Natural Language Processing of the {AFNLP}",
    month = aug,
    year = "2009",
    address = "Suntec, Singapore",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P09-1100/",
    pages = "888--896"
}