K. Yu, W. Ma, V. Tresp, Z. Xu, X. He, H. Zhang, and H. Kriegel. MULTIMEDIA '03: Proceedings of the eleventh ACM international conference on Multimedia, page 622-631. New York, NY, USA, ACM, (2003)
J. Sun, Z. Chen, H. Zeng, Y. Lu, C. Shi, and W. Ma. ICDM '04: Proceedings of the Fourth IEEE International Conference
on Data Mining (ICDM'04), page 535--538. Washington, DC, USA, IEEE Computer Society, (2004)
G. Xue, H. Zeng, Z. Chen, Y. Yu, W. Ma, W. Xi, and W. Fan. CIKM '04: Proceedings of the 13th ACM conference on Information and Knowledge Management, page 118--126. New York, NY, USA, ACM Press, (2004)
S. Yu, D. Cai, J. Wen, and W. Ma. WWW '03: Proceedings of the 12th international conference on World Wide Web, page 11--18. New York, NY, USA, ACM Press, (2003)
H. Cui, J. Wen, J. Nie, and W. Ma. Proceedings of the eleventh international conference on World Wide Web, Proceedings of the tenth international conference on World Wide Web, (2002)
H. Zeng, Q. He, Z. Chen, W. Ma, and J. Ma. Proceedings of the 27th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2004, page 210--217. (2004)