Papers by MoonJeong Park
CoPL: Collaborative Preference Learning for Personalizing LLMs (2025.emnlp-main)
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| Challenge: | Existing methods for personalizing large language models struggle with flexibility and generalization. |
| Approach: | They propose a graph-based collaborative filtering framework that models user-response relationships to enhance preference estimation in sparse annotation settings. |
| Outcome: | The proposed framework outperforms existing reward models in TL;DR, UltraFeedback-P, and PersonalLLM datasets. |