Information Technology Department, Al-Balqa Applied University, Jordan 2Department of Computer Science, Princess Sumaya Uni versity for Technology, Jordan 3Department of Computer Science, Loughborough Univer sity, UK
Yange Sun1,2, Zhihai Wang2, Jidong Yuan2, and Wei Zhang2 1School of Computer and Information Technology, Xinyang Normal University, China 2School of Computer and Information Technology, Beijing Jiaotong University, China