中文摘要：

E-mail： xzhang@seu.edu.cn, Xiang Zhang is a Ph.D. candidate in School of Computer Science and Engineering, Southeast University, China. He received his B.S. degree in computer science from Nanjing University of Aeronautics and Astronautics in 2001. His research interests include Semantic Web, social network analysis and web search. E-mail：gcheng@seu.edu.cn, Gong Cheng is a Ph.D. candidate in School of Computer Science and Engineering, Southeast University, China. He received his bachelor＇s degree in computer science and technology from Southeast University, China, in 2006. His current research interests include Semantic Web search and data management. E-mail：wyge@seu.edu.cn, Wei-Yi Ge is a Ph.D. candidate in School of Computer Science and Engineering, Southeast University, China. He received the B.S. degree from Southeast University, China, in School of Computer Science and Engineering, in 2007. His current research interests include Semantic Web search, ontology mapping and e-commerce. E-mail：yzqu@seu.edu.cn, Yu-Zhong Qu is a professor and Ph.D. supervisor of the School of Computer Science and Engineering, Southeast University. His main research interests include software engineering, Semantic Web and Internet computing.