A. Schein, A. Popescul, L. Ungar, and D. Pennock. Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval, page 253--260. New York, NY, USA, ACM, (2002)
A. Schein, A. Popescul, L. Ungar, and D. Pennock. Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval, page 253--260. New York, NY, USA, ACM Press, (2002)