1. School of Electronics and Information Engineering, Hebei University of Technology, Tianjin, China
2. Department of Software Engineering, School of Systems and Technology, University of Management and Technology, Lahore, Pakistan
3. Department of Computer Science, Broward College, Broward County, Fort Lauderdale, FL, USA
4. Division of Business Administration and Economics, Morehouse College, Atlanta, GA, USA
5. Department of Information and Communication Engineering, Yeungnam University, Gyeongsan-si, South Korea