I was a PhD student at Edlab @KAIST AI, advised by Edward Choi. I am interested in natural language processing, machine learning for healthcare, and conversational agents.

I am joining Seoul National University to pursue dentistry starting from March, 2026.

[last updated: March 3rd, 2026]

Past Topics of interest

AI Agents, Dialog Systems, Text-to-SQL, Machine Learning for Healthcare

Past Projects

1. Can AI Chatbots Mimic Human Behaviors in Group Chat Settings and Fool Humans? [project app link (obsolote)]

2. Evaluating Persona Consistency of "persona-fied" AI Agents by Leveraging the Approvals System in Baldur's Gate 3 [github link]

Publications

2026

DialSim: A Real-Time Simulator for Evaluating Long-Term Dialogue Understanding of Conversational Agents

Jiho Kim, Woosog Chay, Hyeonji Hwang, Daeun Kyung, Hyunseung Chung, Eunbyeol Cho, Yohan Jo, Edward Choi 

ICLR Workshop MemAgents

From Conversation to Query Execution: Benchmarking User and Tool Interactions for EHR Database Agents

Gyubok Lee, Woosog Chay, Heeyoung Kwak, Yeong Hwa Kim, Haanju Yoo, Oksoon Jeong, Meong Hi Son, Edward Choi

Proc. of International Conference on Learning Representations (ICLR)

ProPerSim: Developing Proactive and Personalized AI Assistants through User-Assistant Simulation

Jiho Kim, Junseong Choi, Woosog Chay, Daeun Kyung, Yeonsu Kwon, Yohan Jo, Edward Choi

Proc. of International Conference on Learning Representations (ICLR)

2025

SCARE: A Benchmark for SQL Correction and Question Answerability Classification for Reliable EHR Question Answering

Gyubok Lee*, Woosog Chay*, Edward Choi (*: Equal Contribution)

Proc. of Machine Learning for Health (ML4H)

Preprints

TrustSQL: Benchmarking Text-to-SQL Reliability with Penalty-Based Scoring

Gyubok Lee, Woosog Chay, Seonhee Cho, Edward Choi

Preprint

Education

• D.D.S. Candidate, Seoul National University Department of Dentistry, March. 2026 ~ Feb. 2030 (Expected)

• PhD Candidate, Kim JaeChul Graduate School of AI, KAIST, Sept. 2025 ~ Feb. 2026

• M.S., KimJaeChul Graduate School of AI, KAIST, Aug. 2023 - Aug. 2025

• B.S. in Electrical Engineering, KAIST, Mar. 2018 - Feb. 2022