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Kyubyung Chae

I am a Ph.D. student in Data Science at Seoul National University, under the guidance of Professor Taesup Kim. I completed my Master's studies in the same graduate school and am affiliated with LAAL. Prior to pursuing my Master's degree, I worked as a Data Scientist at LG CNS. I earned my Bachelor's degree in Applied Statistics from Yonsei University.

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Research

My research interests focus on the real-world applications of AI models. I am interested in representation learning and transfer learning, particularly at the intersection of uncertainty (probability) and machine learning. My long-term research goal is to understand, evaluate, and enhance modern AI models, such as pre-trained and large foundation models. To achieve this goal, I develop new theories, algorithms, and applications. Recently, I have been particularly interested in large language models (LLMs) that can refine themselves through self-prediction.

Publications
LBS Model-based Preference Optimization in Abstractive Summarization without Human Feedback
Jaepill Choi*, Kyubyung Chae*, Jiwoo Song, Yohan Jo, Taesup Kim.
  • EMNLP, 2024
  • Arxiv

    LBS Mitigating Hallucination in Abstractive Summarization with Domain-Conditional Mutual Information
    Kyubyung Chae*, Jaepill Choi*, Yohan Jo, Taesup Kim.
  • NAACL Findings, 2024
  • Paper / Arxiv / Code

    LBS Uncertainty-Guided Online Test-time Adaptation via Meta-Learning
    Kyubyung Chae, Taesup Kim.
  • ICML Workshop, 2023
  • Paper / Poster / Code / Workshop

    Domestic
    LBS Test-time Adaptation with Energy-based Indicator in Open-set Scenarios
    Yewon Han, Kyubyung Chae, Taesup Kim.
  • KCC, 2024
  • Best Paper

    LBS Fine-tuning Language Models to Alleviate Hallucinations in Abstractive Summarization
    Jaepill Choi, Kyubyung Chae, Jiwoo Song, Taesup Kim.
  • KCC, 2024
  • Paper

    Work Experience
    • LG CNS, Seoul, Data Science Specialist, Aug 2018 - Feb 2022 ยท 3 yrs 7 mos
    Education
    • PhD student, Seoul National University, Data Science, Mar 2024 - Present
    • Master's degree, Seoul National University, Data Science, Mar 2022 - Feb 2024
    • Bachelor's degree, Yonsei University, Applied Statistics, Mar 2011 - Feb 2018
    Honors and Awards

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