L. Chen, X. Xu, Y. Chen, and P. He. Proceedings of the IEEE/WIC/ACM International
Conference on Intelligent Agent Technology, page 148--154. Washington, DC, USA, IEEE Computer Society, (2004)
L. Chen, X. hua Xu, and Y. xin Chen. In Proceedings of the Third International Conference
on Machine Learning and Cybernetics, page 1387--1392. IEEE, (2004)
W. Yang, Z. Fu, J. Kim, and M. Park. Proceedings of the joint 9th Asia-Pacific web and 8th
international conference on web-age information
management conference on Advances in data and web
management, page 157--167. Berlin, Heidelberg, Springer-Verlag, (2007)