On using user query sequence to detect off-topic search.

Alana Platt Nazli Goharian Saket S. R. Mengle On using user query sequence to detect off-topic search. 882-883 2007 conf/sac/2007 SAC http://doi.acm.org/10.1145/1244002.1244196 db/conf/sac/sac2007.html#PlattGM07