Ye Yuan, Department of Computer Science, Northeastern University, Shenyang, Liaoning, China Xiang Lian, Computer Science Department, UTPA, Edinburg, TX Lei Chen, Department of Computer Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong Jeffery Xu Yu, Department of Systems Engineering and Engineering Management, Chinese University of Hong Kong, Hong Kong, China Guoren Wang, Department of Computer Science, Northeastern University, Shenyang, Liaoning, China Yongjiao Sun, Department of Computer Science, Northeastern University, Shenyang, Liaoning, China