Social Robotics 9th International Conference, ICSR 2017, Tsukuba, Japan, November 22-24, 2017, Proceedings - Kheddar, Abderrahmane; Yoshida, Eiichi; Ge, Shuzhi Sam; Suzuki, Kenji; Cabibihan, John-John; Eyssel, Friederike; He, Hongsheng (Springer International Publishing : Imprint: Springer, 2017)