1. Department of Computer Science and Engineering, American International University Bangladesh, Dhaka 1229, Bangladesh
2. Department of Computer Science and Engineering, Bangladesh University of Business and Technology, Dhaka 1216, Bangladesh
3. Department of Computer Science and Engineering, University of Asia Pacific, Dhaka 1216, Bangladesh
4. Department of Information Technology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
5. Department of Computer Science and Engineering, University of Aizu, Aizuwakamatsu 965-8580, Japan