TREC 2002 QA at BBN: Answer Selection and Confidence Estimation.

@inproceedings{xu-2002-trec, author = {Jinxi Xu and Ana Licuanan and Jonathan May and Scott Miller and Ralph M. Weischedel}, editor = {Ellen M. Voorhees and Lori P. Buckland}, title = {{TREC 2002 QA at BBN: Answer Selection and Confidence Estimation}}, booktitle = {{Proceedings of The Eleventh Text REtrieval Conference, TREC 2002, Gaithersburg, Maryland, USA, November 19-22, 2002}}, series = {NIST Special Publication}, volume = {500-251}, publisher = {National Institute of Standards and Technology (NIST)}, year = {2002}, url = {http://trec.nist.gov/pubs/trec11/papers/bbn.xu.qa.pdf} }