Yoonseo Choi
Yoonseo Choi

Yoonseo Choi최윤서

I build AI systems that keep human perspectives alive and evolving.

I’m a final-year Ph.D. candidate in the School of Computing at KAIST, advised by Juho Kim. My thesis builds generative user proxies: interactive, data-grounded personas and intents that help teams understand users at scale. Building on this, I now explore how AI agents reshape the way people work together, what forms of proxies can support human-AI collaboration, and what successful collaboration could look like.

I interned at Microsoft Research Cambridge and have led research collaborations with NAVER, Samsung Research, and Hyundai Motor Group. Before joining the world of Human-Computer Interaction, I studied Education at Korea University. Outside of research, you’ll usually find me walking my dog, practicing Ashtanga yoga, or sipping coffee or tea.

News

  • Serving as Papers Chair Assistant for CSCW 2026 📝
  • Gave a talk on Generative Proxies at the University of Cambridge 🎓
  • Started a summer research internship at Microsoft Research Cambridge 🇬🇧
  • Serving as General Chair Assistant for Festival of Learning 2026 📚
  • Gave a guest lecture in the Human-Centered Data Science course at NYU Abu Dhabi 🧑‍🏫
  • Attended UIST 2025 to present BloomIntent 🎉
  • Presented Proxona at CHI 2025 in Yokohama 🌸
  • Was invited to meet with tech fellows from a U.S. Congresswoman’s office 🏛️
  • Had a workshop paper accepted at the SIGIR 2024 LLM4Eval workshop 📄
  • Gave a PhD seminar talk at Cornell Information Science 🗣️
  • Attended CHI 2023 to present Creator-friendly Algorithms, with a Google travel grant ✈️
  • Received an Honorable Mention at CHI 2022 for Stylette 🏅

Publications

  • DecideTogether: Supporting Subjective Automoderation through Inspectable Criteria and Case-Based Refinement
    Under review
  • BloomIntent: Automating Search Evaluation with LLM-Generated Fine-Grained User Intents
    Yoonseo Choi, Eunhye Kim, Hyunwoo Kim, Donghyun Park, Honggu Lee, Jin Young Kim, Juho Kim
    UIST 2025With NAVER Search
  • Proxona: Supporting Creators’ Sensemaking and Ideation with LLM-Powered Audience Personas
    Yoonseo Choi, Eun Jeong Kang, Seulgi Choi, Min Kyung Lee, Juho Kim
    CHI 2025Applied to automotive UX with Hyundai Motor Group
  • Beyond Swipes and Scores: Investigating Practices, Challenges and User-Centered Values in Online Dating Algorithms
    Chowon Kang, Yoonseo Choi, Yongjae Sohn, Hyunseung Lim, Hwajung Hong
    CSCW 2024
  • Creator-friendly Algorithms: Behaviors, Challenges, and Design Opportunities in Algorithmic Platforms
    Yoonseo Choi, Eun Jeong Kang, Min Kyung Lee, Juho Kim
    CHI 2023
  • Stylette: Styling the Web with Natural Language
    Tae Soo Kim, DaEun Choi, Yoonseo Choi, Juho Kim
    CHI 2022Honorable Mention
  • Winder: Linking Speech and Visual Objects to Support Communication in Asynchronous Collaboration
    Tae Soo Kim, Seungsu Kim, Yoonseo Choi, Juho Kim
    CHI 2021
  • ProtoChat: Supporting the Conversation Design Process with Crowd Feedback
    Yoonseo Choi, Toni-Jan Keith Monserrat, Jeongeon Park, Hyungyu Shin, Nyoungwoo Lee, Juho Kim
    CSCW 2020