Combining Lexicon Expansion, Information Retrieval, and Cluster-based Ranking for Biomedical Question Answering.

@inproceedings{cohen-2006-combining, author = {Aaron M. Cohen and Jianji Yang and Seeger Fisher and Brian Roark and William R. Hersh}, editor = {Ellen M. Voorhees and Lori P. Buckland}, title = {{Combining Lexicon Expansion, Information Retrieval, and Cluster-based Ranking for Biomedical Question Answering}}, booktitle = {{Proceedings of the Fifteenth Text REtrieval Conference, TREC 2006, Gaithersburg, Maryland, USA, November 14-17, 2006}}, series = {NIST Special Publication}, volume = {500-272}, publisher = {National Institute of Standards and Technology (NIST)}, year = {2006}, url = {http://trec.nist.gov/pubs/trec15/papers/ohsu.geo.final.pdf} }