Human-centered computing for
I am Ryuhaerang Choi, a postdoctoral researcher in the Mobile Intelligence & Interaction Lab at KAIST, working with Prof. Sung-Ju Lee.
My research lies at the intersection of human-computer interaction (HCI) and ubiquitous computing. I build interactive systems that offer timely and context-sensitive support for people’s well-being in everyday life. Beyond individual-level support, I study how technology can support well-being through people’s relationships and social support networks.
My work has been published at CHI and CSCW and received Best Paper Honorable Mention awards at CHI 2024 and CHI 2025. I also received the Outstanding Dissertation Award from the KAIST School of Electrical Engineering in 2026.
Research interests
Human-Computer Interaction (HCI) · Ubiquitous Computing · Human-Centered AI · Digital Health & Well-being
Latest news
- Poster presentation at UbiComp ’26 and program co-chair at WellComp@UbiComp ’26
- Outstanding Dissertation Award from KAIST School of Electrical Engineering
- Paper (Recovery is Relational) accepted at CHI ’26
- Paper (Private Yet Social) won a Best Paper Honorable Mention at CHI ’25
- Invited talk at the SIGCHI-sponsored top conference session at HCI Korea
Publications
Google ScholarPreprints & Under Review
Topic: A Multimodal Dataset for Eating Disorder Symptom Detection and Prediction
Under review
Conference and journal papers


Best Paper Honorable Mention Award (Top 5%)
Private Yet Social: How LLM Chatbots Support and Challenge Eating Disorder Recovery
ACM CHI 2025


Best Paper Honorable Mention Award (Top 5%)
FoodCensor: Promoting Mindful Digital Food Content Consumption for People with Eating Disorders
ACM CHI 2024


Posters, demos, and workshop papers
“Call Me Before I Open the Fridge”: Designing Conversational Support for Binge Eating Risk in Solitary Eating
ACM UbiComp Poster 2026 · To appear
CrashSniffer: UWB-Based Anchor-Free Pedestrian Collision Prediction for Personal Mobility Vehicles
ACM MobiSys · EnvSys Workshop 2025
Pushing the Decision Boundaries: Discovering New Classes in Audio Data
ICML · DMLR Workshop 2024
Work Experience
Mar 2026 – Present
KAIST
Postdoctoral Researcher in Electrical Engineering
Jul – Sep 2023
Nokia Bell Labs, Cambridge, UK
Research Intern, Device Intelligence Team
Education
Aug 2021 – Feb 2026
KAIST
Ph.D., School of Electrical Engineering
Outstanding Dissertation Award, Top 1 in Computer Division
Aug 2019 – Aug 2021
KAIST
M.S., School of Computing
Mar 2016 – Aug 2019
Inha University
B.S., Computer Science
Summa Cum Laude, Early Graduation