Sangkyu Lee

M.S. student, Yonsei University

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I am an M.S. student at Yonsei University advised by Youngjae Yu and Jongmin Lee. Concurrently, I am a research scientist intern at the Artificial Intelligence and Robotics Institute in KIST. Also I worked at LG AI ResearchNaver Cloud and maumAI. Before the M.S. degree program, I received a B.A. in Applied Statistics and a B.S. in Computer Science & Engineering from Yonsei University.

My research goal is to develop an embodied agent that autonomously discovers and acquires knowledge through experiences. To this end, I aim to find scalable approaches for how embodied agents can learn through the physical world without human supervision, not limited to physical constraints. Currently, I am researching related research topics to achieve efficient long-context multimodal generative models and continual learning through self-supervision for AI alignment.

🙌 Looking for Ph.D. programs! 🙌

News

Sep 18, 2025 Our paper is accepted at NeurIPS 2025.
Sep 01, 2025 I am starting a research scientist internship at the Artificial Intelligence and Robotics Institute in KIST.
May 15, 2025 Our paper is accepted as a main conference paper at ACL 2025.
Feb 18, 2025 Our new preprint, KL Penalty Control via Perturbation for Direct Preference Optimization, is released.
Jan 17, 2025 Check out our new preprint, SEAL: Entangled White-box Watermarks on Low-Rank Adaptation.

Publications

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    SEAL: Entangled White-box Watermarks on Low-Rank Adaptation
    Giyeong Oh, Saejin Kim, Woohyun Cho, and 4 more authors
    Under Review, 2025
  2. NeurIPS 2025
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    KL Penalty Control via Perturbation for Direct Preference Optimization
    Sangkyu Lee*, Janghoon Han, Hosung Song, and 3 more authors
    NeurIPS 2025, 2025
  3. ACL 2025
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    Speaking Beyond Language: A Large-Scale Multimodal Dataset for Learning Nonverbal Cues from Video-Grounded Dialogues
    Youngmin Kim*, Jiwan Chung*, Jisoo Kim, and 5 more authors
    Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), Jul 2025
  4. AAAI 2025
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    MASS: Overcoming Language Bias in Image-Text Matching
    Jiwan Chung, Seungwon Lim, Sangkyu Lee, and 1 more author
    Proceedings of the 39th Annual AAAI Conference on Artificial Intelligence, Apr 2025
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    HyperCLOVA X Technical Report
    HyperCLOVA X Team
    Technical Report, Apr 2024
  6. ACL 2024
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    Aligning Large Language Models by On-Policy Self-Judgment
    Sangkyu Lee*, Sungdong Kim, Ashkan Yousefpour, and 3 more authors
    Proceedings of the 62nd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), Aug 2024