1. School of Computing Science and Engineering, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
2. Department of Computer Science, The University of Missouri , Saint Louis, MO, USA
3. Department of Computer Science and Engineering, National Chung-Hsing University , Taichung, Taiwan
4. School of Computer and Communication Engineering, Changsha University of Science and Technology , Changsha, China
5. Institute for Informatics and Telematics, National Research Council of Italy (CNR) , Pisa, Italy