| 2021 | HCI | Estimating Interaction State from Nonverbal Cues and Utterance Events: A Preliminary Study to Support Ideation Facilitation in Living Lab. | Ichiro Umata, Sumaru Niida, Koki Ijuin, Tsuneo Kato, Seiichi Yamamoto |
| 2021 | RO-MAN | Proposing Remote Video Conversation System "PARAPPA": Delivering the Gesture and Body Posture with Rotary Screen | Koki Ijuin, Kunihiro Ogata, Kentaro Watanabe, Hiroyasu Miwa, Yoshinobu Yamamoto |
| 2020 | CogSci | Quantitative Analyses of Gaze Duration from the viewpoints of Grounding Acts, Conversation Topic, and Linguistic Proficiency. | Ichiro Umata, Koki Ijuin, Tsuneo Kato, Seiichi Yamamoto |
| 2020 | HCI | Exploring Gaze Behaviour and Perceived Personality Traits. | Koki Ijuin, Kristiina Jokinen |
| 2020 | HCI | Effects of Linguistic Proficiency and Conversation Topic on Listener's Gaze in Triadic Conversation. | Ichiro Umata, Koki Ijuin, Tsuneo Kato, Seiichi Yamamoto |
| 2019 | HAI | Utterances in Social Robot Interactions - Correlation Analyses between Robot's Fluency and Participant's Impression. | Koki Ijuin, Kristiina Jokinen |
| 2019 | HCI | Gaze from and Toward the Silent Third Participant in a Triadic Conversation. | Ichiro Umata, Koki Ijuin, Tsuneo Kato, Seiichi Yamamoto |
| 2019 | ICMI | Floor Apportionment Function of Speaker's Gaze in Grounding Acts. | Ichiro Umata, Koki Ijuin, Tsuneo Kato, Seiichi Yamamoto |
| 2018 | ICMI | Floor Apportionment and Mutual Gazes in Native and Second-Language Conversation. | Ichiro Umata, Koki Ijuin, Tsuneo Kato, Seiichi Yamamoto |
| 2017 | CogSci | Gaze during utterances and silence in L1 and L2 Conversations. | Ichiro Umata, Koki Ijuin, Tsuneo Kato, Seiichi Yamamoto |
| 2016 | LREC | Quantitative Analysis of Gazes and Grounding Acts in L1 and L2 Conversations. | Ichiro Umata, Koki Ijuin, Mitsuru Ishida, Moe Takeuchi, Seiichi Yamamoto |
| 2014 | ICMI | Eye Gaze Analyses in L1 and L2 Conversations: From the Perspective of Listeners' Eye Gaze Activity. | Koki Ijuin, Keiko Taguchi, Ichiro Umata, Seiichi Yamamoto |
| 2013 | ICMI | Effects of language proficiency on eye-gaze in second language conversations: toward supporting second language collaboration. | Ichiro Umata, Seiichi Yamamoto, Koki Ijuin, Masafumi Nishida |