1. Department of Computer Science, Islamia College University Peshawar, Peshawar, Pakistan
2. Department of Computer Science and Engineering, Chung-Ang University, Seoul, South Korea
3. Intelligent Convergence Research Laboratory, ETRI, Daejeon, South Korea
4. Department of Computer Science, North Dakota State University, Fargo, ND, USA
5. College of Art and Technology, Chung-Ang University, Anseong-si, South Korea