X. Song, B. Tseng, C. Lin, and M. Sun. Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval, page 509--516. New York, NY, USA, ACM, (2006)
X. Song, B. Tseng, C. Lin, and M. Sun. SIGIR '06: Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval, page 509--516. New York, NY, USA, ACM Press, (2006)
R. White, M. Bilenko, and S. Cucerzan. SIGIR '07: Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval, page 159--166. New York, NY, USA, ACM Press, (2007)