Effects of language proficiency on eye-gaze in second language conversations: toward supporting second language collaboration. - Ichiro Umata; Seiichi Yamamoto; Koki Ijuin; Masafumi Nishida (ICMI, 2013)

Eye Gaze Analyses in L1 and L2 Conversations: From the Perspective of Listeners' Eye Gaze Activity. - Koki Ijuin; Keiko Taguchi; Ichiro Umata; Seiichi Yamamoto (UM3I@ICMI, 2014)

Multimodal Japanese corpus of multi-party conversation on two different topic types. - Keiko Taguchi; Seiichi Yamamoto; Koki Ijuin; Ichiro Umata (O-COCOSDA, 2014)

Quantitative analyses of Gaze Activity during Silence: Comparison between Native-Language and Second-Language Conversation. - Ichiro Umata; Tomoya Tanizoe; Koki Ijuin; Seiichi Yamamoto (EAPCogSci, 2015)

Eye Gaze Analyses in L1 and L2 Conversations: Difference in Interaction Structures. - Koki Ijuin; Yasuhiro Horiuchi; Ichiro Umata; Seiichi Yamamoto (TSD, 2015)

Multimodal corpus of multiparty conversations in L1 and L2 languages and findings obtained from it. - Seiichi Yamamoto; Keiko Taguchi; Koki Ijuin; Ichiro Umata; Masafumi Nishida (Lang. Resour. Evaluation, 2015)

Quantitative Analysis of Gazes and Grounding Acts in L1 and L2 Conversations. - Ichiro Umata; Koki Ijuin; Mitsuru Ishida; Moe Takeuchi; Seiichi Yamamoto (LREC, 2016)

Gaze during utterances and silence in L1 and L2 Conversations. - Ichiro Umata; Koki Ijuin; Tsuneo Kato; Seiichi Yamamoto (CogSci, 2017)

Floor Apportionment and Mutual Gazes in Native and Second-Language Conversation. - Ichiro Umata; Koki Ijuin; Tsuneo Kato; Seiichi Yamamoto (ICMI, 2018)

Utterances in Social Robot Interactions - Correlation Analyses between Robot's Fluency and Participant's Impression. - Koki Ijuin; Kristiina Jokinen (HAI, 2019)

Gaze from and Toward the Silent Third Participant in a Triadic Conversation. - Ichiro Umata; Koki Ijuin; Tsuneo Kato; Seiichi Yamamoto (HCI (14), 2019)

Floor Apportionment Function of Speaker's Gaze in Grounding Acts. - Ichiro Umata; Koki Ijuin; Tsuneo Kato; Seiichi Yamamoto (ICMI (Adjunct), 2019)

Quantitative Analyses of Gaze Duration from the viewpoints of Grounding Acts, Conversation Topic, and Linguistic Proficiency. - Ichiro Umata; Koki Ijuin; Tsuneo Kato; Seiichi Yamamoto (CogSci, 2020)

Exploring Gaze Behaviour and Perceived Personality Traits. - Koki Ijuin; Kristiina Jokinen (HCI (14), 2020)

Effects of Linguistic Proficiency and Conversation Topic on Listener's Gaze in Triadic Conversation. - Ichiro Umata; Koki Ijuin; Tsuneo Kato; Seiichi Yamamoto (HCI (14), 2020)

Interweaving Data and Knowledge for Co-education Augmentation. - Takuichi Nishimura; Yasuyuki Yoshida; Chiaki Oshiyama; Koki Ijuin; Chisae Murata; Nami Iino; Yuta Tawaki; Yuki Hayashi; Maiko Kobayakawa (TALE, 2020)

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 (HCI (13), 2021)

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 (RO-MAN, 2021)