International comparison of bubbles and bubble indicators. - Naoyuki Yoshino; Tomoya Nakamura; Yoshitaka Sakai (AI Soc., 2014)

Using model uncertainty for robust optimization in approximate inference control. - Hideaki Itoh; Yoshitaka Sakai; Toru Kadoya; Hisao Fukumoto; Hiroshi Wakuya; Tatsuya Furukawa (Artif. Life Robotics, 2017)