@InProceedings{olsson-oard:2009:NAACLHLT09,
  author    = {Olsson, J. Scott  and  Oard, Douglas W.},
  title     = {Phrase-Based Query Degradation Modeling for Vocabulary-Independent Ranked Utterance Retrieval},
  booktitle = {Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chapter of the Association for Computational Linguistics},
  month     = {June},
  year      = {2009},
  address   = {Boulder, Colorado},
  publisher = {Association for Computational Linguistics},
  pages     = {182--190},
  url       = {http://www.aclweb.org/anthology/N/N09/N09-1021}
}