Better than the real thing?: iterative pseudo-query processing using cluster-based language models.

Oren Kurland Lillian Lee Carmel Domshlak Better than the real thing?: iterative pseudo-query processing using cluster-based language models. 19-26 2005 conf/sigir/2005 SIGIR http://doi.acm.org/10.1145/1076034.1076041 db/conf/sigir/sigir2005.html#KurlandLD05