JI Jun-Zhong Professor. He received his Ph.D. degree from Beijing University of Technology. His research interests covers machine learning, web intelligence, and computation intelligence. Corresponding author of this paper. E-mail: jjz01@bjut.edu.cn ZHANG Hong-Xun Master student. His research interest covers data mining and web intelligence. E-marl: zhanghx@emails.bjut.edu.cn HU Ren-Bing Master student. His research interest covers data mining and web intelligence. E-mail: hurenbing@emails.bj ut .edu.cn LIU Chun-Nian Professor. His research interest covers data mining, inductive logic programming, constraint programming, machine learning, and soft computing. E-mail: ai@bjut.edu.cn