publications

2026

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    Persona-Pruner: Sculpting Lightweight Models for Role-Playing
    Jinsu Kim, Jihoon Tack, Noah Lee, and 1 more author
    2026
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    Margin-aware Preference Optimization for Aligning Diffusion Models without Reference
    Jiwoo Hong*, Sayak Paul*, Noah Lee, and 3 more authors
    AAAI, 2026

2025

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    AlphaPO - Reward Shape Matters for LLM Alignment
    Aman Gupta, Shao Tang, Qingquan Song, and 8 more authors
    ICML, 2025
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    On the Robustness of Reward Models for Language Model Alignment
    Jiwoo Hong, Noah Lee, Eunki Kim, and 5 more authors
    ICML, 2025
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    Cross-lingual Transfer of Reward Models in Multilingual Alignment
    Jiwoo Hong*, Noah Lee*, Rodrigo Martínez-Castaño, and 2 more authors
    NAACL, 2025
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    The BiGGen Bench: A Principled Benchmark for Fine-grained Evaluation of Language Models with Language Models
    Seungone Kim, Juyoung Suk, Ji Yong Cho, and 29 more authors
    NAACL (Best Paper), 2025
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    Evaluating the Consistency of LLM Evaluators
    Noah Lee*, Jiwoo Hong*, and James Thorne
    COLING, 2025

2024

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    ORPO: Monolithic Preference Optimization without Reference Model
    Jiwoo Hong, Noah Lee, and James Thorne
    EMNLP, 2024

2023

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    Can Large Language Models Capture Dissenting Human Voices?
    Noah Lee*, Na Min An*, and James Thorne
    EMNLP, 2023