Y. Sun, R. Barber, M. Gupta, C. Aggarwal, and J. Han. Proceedings of the 2011 International Conference on Advances in Social Networks Analysis and Mining, page 121--128. Washington, DC, USA, IEEE Computer Society, (2011)
C. Wang, J. Han, Y. Jia, J. Tang, D. Zhang, Y. Yu, and J. Guo. Proceedings of the 16th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, page 203--212. New York, NY, USA, ACM, (2010)