1. Department of Communication Technology and Network, Faculty of Computer Science and Information Technology, Universiti Putra Malaysia, Serdang, Malaysia
2. Department of Quantitative Methods and Economic Informatics, Faculty of Operation and Economics of Transport and Communications, University of Žilina, Žilina, Slovakia
3. Department of Computer Engineering, Istinye University, Istanbul, Turkey
4. Department of Industrial Engineering, College of Engineering King Saud University, Riyadh, Saudi Arabia