1. Graduate School of Information Science, University of Hyogo, Hyogo, Japan
2. Department of Medical Engineering, Aino University, Osaka, Japan
3. Osaka University Institute for Datability Science, Osaka, Japan
4. Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology, Fukuoka, Japan
5. Aomori University Faculty of Software and Information Technology, Aomori, Japan
6. Osaka University Cyber Media Centre, Osaka, Japan