Diego Mollá Menno van Zaanen Luiz Augusto Sangoi Pizzato AnswerFinder at TREC 2006. 2006 TREC http://trec.nist.gov/pubs/trec15/papers/macquarieu.qa.final.pdf conf/trec/2006 db/conf/trec/trec2006.html#MollaZP06