I'm an integrated M.S.–Ph.D. student in Data Science at Seoul National University, advised by Yohan Jo in the HOLI Lab.
I work on evaluating and improving language-model behavior, with a focus on tool-using agents and human simulation.
Research interests
- Agent behavior. Everyday task solving [arXiv ’26], tool use and reliability [ACL ’26] [arXiv ’26], and user interaction [ICLR ’26].
- Values and human simulation. Values and personas in generated behavior [ACL ’25] [EMNLP ’26], and characters that change over time [EMNLP ’26].
News
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ArcANE and Human Psychometric Questionnaires Mischaracterize LLM Behavior accepted to EMNLP 2026 (Main).
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Awarded the Presidential Science Scholarship for Graduate Students (2026–2027) by the Ministry of Science and ICT.
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PA-Tool accepted to ACL 2026 (Main).
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Psychometric Item Validation Using Virtual Respondents accepted to TACL.
Earlier news
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Non-Collaborative User Simulators for Tool Agents accepted to ICLR 2026.
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Quantifying Data Contamination in Psychometric Evaluations of LLMs accepted to EACL 2026 Findings.
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Value Portrait accepted to ACL 2025 (Main).