1. Department of Computer Science and Engineering, The University of Aizu, Aizuwakamatsu, Japan
2. Department of Computer Science, International Institute of Information Technology Bangalore, Bengaluru, India
3. Department of Computer Science and Engineering, Indian Institute of Information Technology Bhopal, Bhopal, India
4. Department of Creative Informatics and the Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka, Japan