1. School of Computer Science and Technology, Chongqing University of Post and Telecommunication, Chongqing, China
2. School of Electrical Engineering and Computing, The University of Newcastle, Callaghan, Australia
3. Department of Computer Science, Government College University, Faisalabad, Pakistan
4. Department of Computer Science, University of Engineering and Technology, Lahore, Pakistan
5. Department of ICT and Natural Sciences, Norwegian University of Science and Technology, Trondheim, Norway
6. School of Information and Software Engineering, University of Electronic Science and Technology, Chengdu, China