James Allan Ben Carterette Blagovest Dachev Javed A. Aslam Virgiliu Pavlu Evangelos Kanoulas Million Query Track 2007 Overview. 2007 TREC http://trec.nist.gov/pubs/trec16/papers/1MQ.OVERVIEW16.pdf conf/trec/2007 db/conf/trec/trec2007.html#AllanCDAPK07