1. School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
2. Graduate School of Information, Production, and Systems, Waseda University, Fukuoka, Japan
3. Department of Computing and Mathematics, Manchester Metropolitan University, Manchester, U.K.
4. College of Computer Science and Technology, Harbin Engineering University, Harbin, China
5. Higher Polytechnic School, Universidad Europea del Atlántico, Santander, Spain
6. Computer Science Department, Community College, King Saud University, Riyadh, Saudi Arabia