@inproceedings{li-etal-2008-optimal,
    title = "Optimal Dialog in Consumer-Rating Systems using {POMDP} Framework",
    author = "Li, Zhifei  and
      Nguyen, Patrick  and
      Zweig, Geoffrey",
    editor = "Schlangen, David  and
      Hockey, Beth Ann",
    booktitle = "Proceedings of the 9th {SIG}dial Workshop on Discourse and Dialogue",
    month = jun,
    year = "2008",
    address = "Columbus, Ohio",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/W08-0118/",
    pages = "104--111"
}