1. School of Computing, Robert Gordon University, Scotland, U.K.
2. Department of Math and Computer Science, Brandon University, Brandon, Canada
3. Faculty of Engineering and Information Technology, University of Technology Sydney, Ultimo, NSW, Australia
4. Department of Electrical Engineering, Yeungnam University, Gyeongsan, South Korea
5. Department of Information and Communication Engineering, Yeungnam University, Gyeongsan, South Korea