中文摘要：

XIONG Ping, is an Associate Professor at School of Information and Security Engineering, Zhongnan University of Economics and Law, China. He received his Ph.D. degree in communication and information system from Wuhan University in 2005. His research interests focus on information security, machine learning and data mining. Email： pingxiong@znufe. edu.cn WANG Xiaofeng, is an Assistant Professor at Institute of Computing Technology, Chinese Academy of Sciences, China. He received his Ph.D. degree in Computer Science from Institute of Computing Technology, Chinese Academy of Sciences in 2011. His research interests focus on anomaly detection, Multiagent. Email： wangxiaofeng@ict.ac.cn NIU Wenjia, received the Ph.D. degree in Computer Science from the Institute of Computing Technology （ICT）, Chinese Academy of Sciences （CAS） in 2010. Since then, he has been working as research scientist in the National Engineering Laboratory of Informa- tion Security Technologies, Institute of Information Engineering, Chinese Academy of Sciences （CAS）. His research interests are Information Security, Web services, Agent and Data Mining. He has authored more than 30 high-quality journal and conference articles, and served as a guest editor of Future Generation and Computer Systems （FGCS）, a regular reviewer for National Natural Science Foundation of China （NSFC）, Journal of Network and Computer Applications （JNCA）, Knowledge and Information Systems （KAIS）, and Journal of Computer Science and Technology （JCST）. As PC member, he served PAKDD BI2010, AITS 2010, AITS 2011,AITS 2012, CMC2012, etc.. Email： niuwenjia@iie.ac.cn ZHU Tianqing, received her B.S. and M.S. degrees from Wuhan University, China, in 2000 and 2004, respectively. She is currently a PhD candidate in the School of Information Technology, Deakin University, Australia. Her research interests include recommend- er systems, privacy preserving and data mining. Email： ztianqin@deakin.edu.au LI Gang, IEEE/ACM member, received his PhD