G. Feng, T. Liu, Y. Wang, Y. Bao, Z. Ma, X. Zhang, and W. Ma. Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR \textquotesingle06, ACM Press, (2006)
P. Li, J. Nie, B. Wang, and J. He. Web Intelligence and Intelligent Agent Technology (WI-IAT), 2012 IEEE/WIC/ACM International Conferences on, 1, page 274-281. (December 2012)
F. Xia, T. Liu, J. Wang, W. Zhang, and H. Li. Proceedings of the 25th international conference on Machine learning, page 1192--1199. New York, NY, USA, ACM, (2008)
H. He, H. Wang, J. Yang, and P. Yu. SIGMOD '07: Proceedings of the 2007 ACM SIGMOD international conference on Management of data, page 305--316. New York, NY, USA, ACM Press, (2007)
L. Zhang, Q. Liu, J. Zhang, H. Wang, Y. Pan, and Y. Yu. Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, volume 4825 of LNCS, page 645--658. Berlin, Heidelberg, Springer Verlag, (November 2007)