1. James Watt School of Engineering, University of Glasgow, G12 8QQ Glasgow, UK
2. Department of Computer Science, Pak Austria Fachhochschule Institute of Applied Sciences and Technology, Haripur, Pakistan
3. School of Computing and Engineering, University of West London, London W5 5RF, UK
4. Faculty of Education, Psychology and Social Work, University of Lleida, 25003 Lleida, Spain
5. STC’s Artificial Intelligence Chair, Department of Information Systems, College of Computer and Information Sciences, King Saud University, Riyadh 11543, Saudi Arabia
6. Department of Information and Communication Technology, University of Agder, Norway
7. Department of Computer Engineering, College of Engineering, Hadhramout University, Hadhramout, Al Mukalla, Yemen