1. Department of Computer Science, COMSATS University Islamabad, Islamabad, Pakistan
2. Computer Science Department, Faculty of Computers and Information Technology, University of Tabuk, Tabuk, Saudi Arabia
3. Faculty of Information and Communication Studies, University of the Philippines Open University, Los Baños, Philippines
4. College of Computing and Information Technologies, National University, Manila, Philippines
5. Department of Computer Engineering and Networks, College of Computer and Information Sciences, Jouf University, Sakaka, Saudi Arabia
6. Department of Electrical and Electronic Engineering Science, University of Johannesburg, Johannesburg, South Africa