A Method for Estimating Whether a User is in Smooth Communication with an Interactive Agent in Human-Agent Interaction. - Takanori Komatsu; Shoichiro Ohtsuka; Kazuhiro Ueda; Takashi Komeda; Natsuki Oka (KES, 2004)

Comprehension of Users' Subjective Interaction States During Their Interaction with an Artificial Agent by Means of Heart Rate Variability Index. - Takanori Komatsu; Shoichiro Ohtsuka; Kazuhiro Ueda; Takashi Komeda (ACII, 2007)