@inproceedings{tetreault-litman-2006-comparing,
    title = "Comparing the Utility of State Features in Spoken Dialogue Using Reinforcement Learning",
    author = "Tetreault, Joel  and
      Litman, Diane",
    editor = "Moore, Robert C.  and
      Bilmes, Jeff  and
      Chu-Carroll, Jennifer  and
      Sanderson, Mark",
    booktitle = "Proceedings of the Human Language Technology Conference of the {NAACL}, Main Conference",
    month = jun,
    year = "2006",
    address = "New York City, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/N06-1035/",
    pages = "272--279"
}