Dongkeun Yoon

About Me

Hello! I am a PhD student at KAIST AI co-advised by Alice Oh and Minjoon Seo.

My research so far has focused on various topics in LLMs including multilinguality, reasoning models, and evaluation. More recently, I have been exploring speech understanding and generation, as well as text–speech foundation models (omni-models). Please feel free to reach out if you’d like to discuss anything 🙂

Research Interests

• LLMs, Multilingualism, Low-resource NLP, and Speech

Publications

*Equal Contribution

Conference

1. Reasoning Models Better Express Their Confidence
   [Dongkeun Yoon], Seungone Kim, Sohee Yang, Sunkyoung Kim, Soyeon Kim, Yongil Kim, Eunbi Choi, Yireun Kim, Minjoon Seo
   NeurIPS 2025

2. M-Prometheus: A Suite of Open Multilingual LLM Judges
   José Pombal, [Dongkeun Yoon], Patrick Fernandes, Ian Wu, Seungone Kim, Ricardo Rei, Graham Neubig, André FT Martins
   COLM 2025

3. The BiGGen Bench: A Principled Benchmark for Fine-grained Evaluation of Language Models with Language Models
   Seungone Kim, Juyoung Suk, Ji Yong Cho, Shayne Longpre, Chaeeun Kim, [Dongkeun Yoon], …
   NAACL 2025 (🎉 Best Paper)

4. LangBridge: Multilingual Reasoning Without Multilingual Supervision
   [Dongkeun Yoon], Joel Jang, Sungdong Kim, Seungone Kim, Sheikh Shafayat, Minjoon Seo
   ACL 2024

5. Gradient Ascent Post-training Enhances Language Model Generalization
   [Dongkeun Yoon*], Joel Jang*, Sungdong Kim, Minjoon Seo
   ACL 2023

6. Knowledge Unlearning for Mitigating Privacy Risks in Language Models
   Joel Jang, [Dongkeun Yoon], Sohee Yang, Sungmin Cha, Moontae Lee, Lajanugen Logeswaran, Minjoon Seo
   ACL 2023

7. Improving Graph-based Document-Level Relation Extraction Model with Novel Graph Structure
   Seongsik Park, [Dongkeun Yoon], Harksoo Kim
   CIKM 2022

Technical Report

1. K-EXAONE Technical Report
   LG AI Research
   Jan 2026

Preprint

1. A 2-step Framework for Automated Literary Translation Evaluation: Its Promises and Pitfalls
   Sheikh Shafayat, [Dongkeun Yoon], Woori Jang, Jiwoo Choi, Alice Oh, Seohyon Jung
   arXiv preprint, Dec 2024

2. MM-Eval: A Multilingual Meta-Evaluation Benchmark for LLM-as-a-Judge and Reward Models
   Guijin Son*, [Dongkeun Yoon*], Juyoung Suk, Javier Aula-Blasco, Mano Aslan, Vu Trong Kim, …
   arXiv preprint, Oct 2024