Academic Publications

To Appear · ACM IMWUT (UbiComp '26) (2026)

“Two Modes of Reflection: How Temporal, Spatial, and Social Distances Affect Reflective Writing in Family Caregiving”

Shunpei Norihama, Yuka Iwane, Jo Takezawa, Simo Hosio, Mari Hirano, Naomi Yamashita, Koji Yatani.

Presented · ACM PACM HCI (MobileHCI '25) (2025)

“Examining Input Modalities and Visual Feedback Designs in Mobile Expressive Writing”

Shunpei Norihama, Shixian Geng, Kakeru Miyazaki, Arissa J. Sato, Mari Hirano, Simo Hosio, Koji Yatani.

Presented · ACM CSCW '25 (2025)

“When Group Spirit Meets Personal Journeys: Exploring Motivational Dynamics and Design Opportunities in Group Therapy”

Shixian Geng, Ginji Shimojima, Chi-Lan Yang, Zefan Sramek, Shunpei Norihama, Ayumi Takano, Simo Hosio, Koji Yatani.

Presented · ACM CHI EA '26 (2026)

“Not a baby app: Designing for coproduction of parenting”

Ya-Fang Lin, Shunpei Norihama, O. Johnson, Koji Yatani, J. M. Carroll.

Presented · IPSJ SIG-UBI Vol. 88, No. 28 (November 2025)

“Effects of Temporal, Spatial, and Social Distances on Reflective Writing in Family Caregiving [Japanese]”

Shunpei Norihama, Yuka Iwane, Jo Takezawa, Simo Hosio, Mari Hirano, Naomi Yamashita, Koji Yatani.

Student Encouragement Award

Presented · IPSJ DICOMO2024 (July 2024)

“Examining Preferences for Visual Feedback Designs after Expressive Writing [Japanese]”

Hiroki Nakano, Shunpei Norihama, Shixian Geng, Koji Yatani.

Presented · IPSJ 82nd UBI Workshop (May 2024)

“Comparing Visual Feedback Designs to Enhance the Perceived Stress Release in an Expressive Writing Chatbot [Japanese]”

Shunpei Norihama, Shixian Geng, Kakeru Miyazaki, Arissa J. Sato, Ginji Shimojima, Mari Hirano, Simo Hosio, Koji Yatani.

Student Encouragement Award

Presented · IPSJ SIG-UBI Vol. 80, No. 33 (November 2023)

“A Qualitative Study with Ex-patients Towards Digital Support in Substance Use Disorder Treatment [Japanese]”

Ginji Shimojima, Shixian Geng, Chi-Lan Yang, Shunpei Norihama, Zefan Sramek, Ayumi Takano, Simo Hosio, Koji Yatani.

Presented · IPSJ DICOMO2023 (June 2023)

“Examining Input Modality Effects in Interactive Stress Management Chatbots [Japanese]”

Shunpei Norihama, Kakeru Miyazaki, Shixian Geng, Arissa J. Sato, Ginji Shimojima, Simo Hosio, Koji Yatani.

Presented · IPSJ DICOMO2023 (July 2023)

“A Qualitative Study on Deployment Feasibility of Digital Communication in Substance Use [Japanese]”

Ginji Shimojima, Shixian Geng, Shunpei Norihama, Ayako Tamura, Ayumi Takano, Koji Yatani.

Presented · IPSJ DICOMO2023 (July 2023)

“Modeling the Noticeability and Distractiveness of Push Notification Interfaces [Japanese]”

Kakeru Miyazaki, Shunpei Norihama, Kosuke Yamamoto, Zefan Sramek, Arissa J. Sato, Koji Yatani.

Presented · JSAI 2022 (June 2022)

“Traffic Signal Control at Scramble Intersections by Deep Reinforcement Learning [Japanese]”

Takuya Ogami, Shunpei Norihama, Tetsuo Akimoto, Yoshimasa Tsuruoka.

Student Encouragement Award

Presented · IPSJ Interaction 2022 (2022)

“Application of VR Content to Workshops for Understanding Menstruation and Promoting Assistance [Japanese]”

H. Mochizuki, Shunpei Norihama, R. Shimamura, H. Mitarai, Y. Mimura, W. Kohara, T. Hamada, K. Suzuki.