1. College of Engineering and Science, Victoria University, Melbourne, VIC 8001, Australia
2. Computer Science Department, College of Computer Sciences and Information Technology (CCSIT), King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
3. Department of Electrical and Software Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada
4. Department of Computer Science, Information Technology University (ITU), Lahore 40050, Pakistan
5. Department of Computer Science and Engineering, College of Engineering, Qatar University, Doha 2713, Qatar
6. Department of Computer Science, Sheila and Robert Challey Institute for Global Innovation and Growth, North Dakota State University (NDSU), Fargo, ND 58108, USA