Koutaro Kamada

Ph.D student (2024.4-) / SPRING Researcher (2024.4-)

I am looking for a short-term internship (1~2weeks). Even just visiting would be fine. Please contact me (2025.4).

Research map Google Scholar Orcid CV

About me

■Affiliation

Yuizono Laboratory, Japan Advanced Institute of Science and Technology (JAIST).

■Education

  • 2018.4. - 2022.3. // Bachelor of Economics, Takasaki City University of Economics.
  • 2022.4. - 2024.3 // Master of Philosophy, Division of Transdisciplinary Sciences, Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology. Kanazawa University. [Outstanding students]
  • 2024.4. - // Ph.D student, Division of Transdisciplinary Sciences, Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology. Kanazawa University.

■Field of research

CSCW (Computer-Supported Cooperative Work), HCI (Human-Computer Interaction), Decision Sciences.

■Keyword

Remote Collaboration, Human-AI Collaboration, Decision-Making, Virtual Reality.

■Award

  • Telecommunications Advancement Foundation Award 2023 - Telecom Interdisciplinary Research Student Award.
  • Awarding of Outstanding Students (MPhil) in JAIST (2024.3).
  • DICOMO2023 Outstanding Paper Award.

■Contact

Mail: kamada [at] jaist.ac.jp // kamada [at] stu.kanazawa-u.ac.jp

Project

■ Group Discussion (2022-):

We study how to make group discussions―face-to-face, text, video, and VR—work better for everyone. Our focus is group dynamics (e.g., social loafing, the tendency for individual effort to drop in groups). Through experiments and data analysis, we identify why this happens and how humans perceive this. Based on our findings, we provide design practical computer-mediated communication (CMC) tools that counter it.

Keywords: Remote Collaboration, Computer-Mediated Communication (CMC), Group Dynamics, Social Loafing

■ Human-AI Collaborative Decision-Making (2023-):

AI tools can improve our decisions, but over-reliance on AI can also reduce decision quality. This project studies and builds human-AI interfaces that help people use AI well. For example, what kind of interfaces and their elements can foster appropriate trust in AI. The goal is simple: help people and AI make better decisions together.

Keywords: Human-AI Collaboration, AI-Based Decision-Making

■ VR System for Psychiatric Disorders (2023-):

We are developing a VR system for mental disorders. For example, we are aiming to measure social cognitive functions, which are strongly related to schizophrenia, in a way that is more realistic by using VR.

Keywords: VR, Social Cognition, Psychiatric Disorder

Publication

■ International Paper

  • Koutaro Kamada, Masami Takahashi, Naomi Yamashita.: "Exploring Mismatches in Self‑Others’ Perceptions of Effort in Videoconferencing", Extended Abstracts of the 2025 CHI Conference on Human Factors in Computing Systemsrticle No.: 247, pp. 1-7. (Peer‑reviewed) PDF
  • Koutaro Kamada, Haruomi Takahashi, Tzu‑Yang Wang, Takaya Yuizono.: "Exploring the Effect of User Trust in Generative AI on Decision‑Making in Semi‑Structured Problem." International Conference on Human‑Computer Interaction (HCI International 2025) LNCS, vol 15771, pp. 237‑253, Springer. (Oral, Peer‑reviewed, Full paper) PDF
  • Koutaro Kamada, Ryuya Watarai, Tzu‑Yang Wang, Kentaro Takashima, Yasuyuki Sumi, Takaya Yuizono.: “Explorative study of perceived social loafing in VR group discussion: A comparison between the poster presentation environment and the typical conference environment”, IFIP TC.13 International Conference on Human‑Computer Interaction (INTERACT), LNCS, vol 14144, pp. 115‑134, Springer (Aug. 2023). (Oral, Peer‑reviewed, Full paper) PDF

■ Domestic Paper (Japanese)

  • 渡会隆哉, 鎌田光太郎, 角康之, 王子洋, 高島健太郎, 由井薗隆也.“VR会議における他者との対面量に着目した会議の質の分析”, 情報処理学会論文誌コンシューマ・デバイス＆システム（CDS）, 15, 1, 1‑10.（論文誌）
  • 鎌田光太郎, 渡会隆哉, 王子洋, 高島健太郎, 角康之, 由井薗隆也．: “VRグループ・ディスカッションにおける会議形態の違いがターンテイキングに与える影響”， 第200回ヒューマンインタフェース学会研究会「コミュニケーション支援および一般」, ヒューマンインタフェース学会研究報告集, 25(3), pp.97–102, (May. 2023). (Oral, Non‑review)
  • 渡会隆哉, 鎌田光太郎, 王子洋, 高島健太郎, 角康之, 由井薗隆也．: "VR会議における他者との対面量に着目した会議の質評価の試み", DICOMO 2023 シンポジウム, (Jul. 2023). (Oral, Non‑review, 優秀論文賞, 山下記念賞)
  • 羅海洋, 由井薗隆也, 鎌田光太郎, 王子洋．: “感情変化に注目した機械学習による冒険ストーリー生成の試行”, DICOMO 2023 シンポジウム, (Jul. 2023). (Oral, Non‑review).

■ Poster/Demo

  • 由井薗隆也, 鎌田光太郎,東方沙由理,元山琴菜,島田淳一,白肌邦生,小泉周,永井 由佳里 ：21 世紀型トランスファラブルスキルを持つ創造的問題解決人材の存在次元についての考察. 第47回日本創造学会研究大会 (2025). (Non‑review)
  • 劉 牧辰，松井三枝，堂本千晶，由井薗隆也，鎌田光太郎．“メタバース・スーパーマーケット場面を利用した日常生活認知機能の測定法“, 認知神経科学会第30回学術集会 (2025). (Non‑review)
  • 鎌田光太郎, 篠田怜, 松井三枝, 由井薗隆也. “VRを利用した社会認知機能の測定手法の試作”, インタラクション2025．
  • 劉 牧辰，松井三枝，堂本千晶，滝口雄太，由井薗隆也，鎌田光太郎．“メタバースによるショッピング課題の作成と実用可能性の検討“, 第8回（2024年度第1回）「生涯学」領域会議, (Aug. 2024). (Non‑review)
  • 渡会隆哉, 鎌田光太郎, 角康之, 王子洋, 由井薗隆也, 高島健太郎．“VR会議における他者との対面量と言語行動の対応関係の分析“, インタラクション2024 第28回 一般社団法人情報処理学会シンポジウム, (Mar. 2024). (Non‑review)

Experience

Contribution