2004

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Evaluation of an extraction-based approach to answering definitional questions
Jinxi Xu | Ralph M. Weischedel | Ana Licuanan
SIGIR 2004: Proceedings of the 27th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Sheffield, UK, July 25-29, 2004

2003

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TREC 2003 QA at BBN: Answering Definitional Questions
Jinxi Xu | Ana Licuanan | Ralph M. Weischedel
Proceedings of The Twelfth Text REtrieval Conference, TREC 2003, Gaithersburg, Maryland, USA, November 18-21, 2003

2002

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TREC 2002 QA at BBN: Answer Selection and Confidence Estimation
Jinxi Xu | Ana Licuanan | Jonathan May | Scott Miller | Ralph M. Weischedel
Proceedings of The Eleventh Text REtrieval Conference, TREC 2002, Gaithersburg, Maryland, USA, November 19-22, 2002

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