Boris Katz Sue Felshin Gregory Marton Federico Mora Yuan Kui Shen Gabriel Zaccak Ammar Ammar Eric Eisner Asli Turgut L. Brown Westrick CSAIL at TREC 2007 Question Answering. 2007 TREC http://trec.nist.gov/pubs/trec16/papers/mit.qa.final.pdf conf/trec/2007 db/conf/trec/trec2007.html#KatzFMMSZAETW07