A elderly people assistant system applying user model with robots and Smartphone. - Yihsin Ho; Eri Sato-Shimokawara; Jiguo Zhen; Toru Yamaguchi (SCIS&ISIS, 2012)

Sino-japanese culture differences in interaction robot system. - Jiguo Zhen; Hirotaka Aoki; Eri Sato-Shimokawara; Toru Yamaguchi (SII, 2012)

Developing an information giving system for supporting community society. - Ryuichi Tachibana; Shun Nomura; Jiguo Zhen; Yihsin Ho; Yasunari Fujimoto; Toru Yamaguchi (RiiSS, 2013)