T. Zhang, A. Popescul, and B. Dom. KDD '06: Proceedings of the 12th ACM SIGKDD international conference on Knowledge discovery and data mining, page 821--826. New York, NY, USA, ACM Press, (2006)
O. Kurland, and L. Lee. SIGIR '05: Proceedings of the 28th annual international ACM SIGIR conference on Research and development in information retrieval, page 306--313. New York, NY, USA, ACM Press, (2005)
O. Kurland, and L. Lee. SIGIR '06: Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval, page 83--90. New York, NY, USA, ACM Press, (2006)
T. Adler, and L. de Alfaro. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 261--270. New York, NY, USA, ACM Press, (2007)
B. Davison. Proceedings of the 23rd annual international ACM SIGIR conference on Research and development in information retrieval, page 272--279. Athens, Greece, ACM, (July 2000)
R. Baeza-Yates, \. álvaro Pereira, and N. Ziviani. WWW '08: Proceeding of the 17th international conference on World Wide Web, page 367--376. New York, NY, USA, ACM, (2008)
F. Suchanek, G. Kasneci, and G. Weikum. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 697--706. New York, NY, USA, ACM Press, (2007)
J. Yang, R. Cai, Y. Wang, J. Zhu, L. Zhang, and W. Ma. WWW '09: Proceedings of the 18th international conference on World wide web, page 181--190. New York, NY, USA, ACM, (2009)