○naoya segawa¹, takefumi kurose² (1. Japan Post Holdings, 2. Faculty of Human-Environmental Studies, Kyushu University)

○Kenji Fukuchi¹ (1. Waseda University)

○Takafumi Fukuyama¹, Noriaki Nishiyama¹ (1. Center for Advanced Tourism Studies, Hokkaido University)

○zheng tian¹, miura ken¹, yasuda kei¹ (1. kyoto university)

○Daiki Ishibashi¹, Miki Muraki², Daisuke Sunaga³ (1. Graduate School of Science and Engineering, Chiba University, 2. Graduate School of Engineering, Chiba University, 3. Faculty of Science and Engineering, Chuo University)