I'm a Master's student in the School of Computing at KAIST.
I'm working in Collaborative Social Technologies Lab(CSTL) and KAIST Interaction Lab(KIXLAB), where I'm advised by Prof. Joseph Seering and Prof. Juho Kim.
I am interested in Human-AI Interaction, with a focus on designing interactive systems for collaboration between humans and AI agents.
My research begins from the question of why people struggle to steer AI systems toward their goals.
I study this challenge from two directions: (1) how users can express their intent and provide relevant context to AI agents, and (2) how they can evaluate AI behaviors and provide feedback in return.
During my Master’s research, I have explored interfaces that ground multi-agent collaboration in users’ working contexts, as well as interfaces that help users evaluate large-scale AI responses through functional fragmentation.
Across these projects, I have found that both prompting AI and auditing AI depend on how users make sense of their data, context, and model outputs.
I aim to design interactive systems that support sensemaking and evaluation, helping a broad range of users—from everyday knowledge workers to AI developers—collaborate with AI systems.
(* equal contribution)
An Interface Integrating Multi-Agent Discussions into User's Evolving Documents
Heechan Lee, et al.
Under Review
A Large-scale Longitudinal Group Collaboration Dialog Dataset
Heechan Lee*, Jeonggyu Kang*, et al.
Under Review
Tae Soo Kim*, Heechan Lee*, Yoonjoo Lee, Joseph Seering, Juho Kim
CHI 2026 Honorable Mention
Heechan Lee, Joseph Seering
CHI 2026 Workshop on LLM Agent Simulation for Policy (PoliSim)
Heechan Lee, Tae Soo Kim, Juho Kim
CHI 2025 Workshop on Human-centered Evaluation and Auditing of Language Models (HEAL)
Chei Sian Lee, Kok Khiang Lim, Heechan Lee, Dion Hoe-Lian Goh
ICADL 2024, Short Paper