J. Scott Olsson, Douglas W. Oard. Phrase-Based Query Degradation Modeling for Vocabulary-Independent Ranked Utterance Retrieval. In Human Language Technologies: Conference of the North American Chapter of the Association of Computational Linguistics, Proceedings, May 31 - June 5, 2009, Boulder, Colorado, USA. pages 182-190, The Association for Computational Linguistics, 2009. [doi]
Abstract is missing.