A Four-Participant Group Facilitation Framework for Conversational Robots. - Yoichi Matsuyama; Iwao Akiba; Akihiro Saito; Tetsunori Kobayashi (SIGDIAL Conference, 2013)

Four-participant group conversation: A facilitation robot controlling engagement density as the fourth participant. - Yoichi Matsuyama; Iwao Akiba; Shinya Fujie; Tetsunori Kobayashi (Comput. Speech Lang., 2015)