1. Graduate School of Engineering Science, Osaka University, Japan
2. Department of Mechanichal Engineering, Osaka University, Japan
3. Department of Media Science, Tokyo University of Technology, Japan
4. Graduate School of Humanities and Social Science, Saitama University, Japan
5. Graduate School of Humanities and Social Sciences, Saitama University, Japan
6. Consultant, Japan
7. Faculty of Informatics, Kindai University, Japan