Identifying redundant search engines in a very large scale metasearch engine context.

Ronak Desai Qi Yang Zonghuan Wu Weiyi Meng Clement T. Yu Identifying redundant search engines in a very large scale metasearch engine context. 51-58 2006 conf/widm/2006 WIDM http://doi.acm.org/10.1145/1183550.1183562 db/conf/widm/widm2006.html#DesaiYWMY06