Publications

Conference

A Regex Minimization Benchmark: A PSPACE-Complete Challenge for Language Models

Hyundong Jin, Joonghyuk Hahn, Yo-Sub Han

Proceedings of the Conference of the European Chapter of the Association for Computational Linguistics (EACL), Mar. 2026, Vol. 1, pp. 8020–8048

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Mondrian: A Framework for Logical Abstract (Re) Structuring

Elizabeth Grace Orwig, Shinwoo Park, Hyundong Jin, Yo-Sub Han

Proceedings of the Conference on Empirical Methods in Natural Language Processing (EMNLP), Nov. 2025, pp. 33663–33678

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TRAPDOC: Deceiving LLM Users by Injecting Imperceptible Phantom Tokens into Documents

Hyundong Jin, Sicheol Sung, Shinwoo Park, SeungYeop Baik, Yo-Sub Han

Findings of the Conference on Empirical Methods in Natural Language Processing (EMNLP-findings), Nov. 2025, pp. 33663–33678

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Operator-learning-inspired modeling of neural ordinary differential equations

Woojin Cho, Seunghyeon Cho, Hyundong Jin, Jinsung Jeon, Kookjin Lee, Sanghyun Hong, Dongeun Lee, Jonghyun Choi, Noseong Park

Proceedings of the AAAI Conference on Artificial Intelligence (AAAI), Mar. 2024, Vol. 38, No. 10, pp. 11543–11551

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PAC-FNO: Parallel-Structured All-Component Fourier Neural Operators for Recognizing Low-Quality Images

Jinsung Jeon, Hyundong Jin, Jonghyun Choi, Sanghyun Hong, Dongeun Lee, Kookjin Lee, Noseong Park

Proceedings of the International Conference on Learning Representations (ICLR), Jan. 2024

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Journal

Detecting code paraphrased by large language models using coding style features

Shinwoo Park, Hyundong Jin, Jeong-won Cha, Yo-Sub Han

Engineering Applications of Artificial Intelligence (EAAI), Dec. 2025, Vol. 162, p. 112454

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Preprint

EPIC: Efficient and Parallel Inference under CFG Constraints for Diffusion Language Models

Hyundong Jin, Yo-Sub Han

arXiv, May. 2026

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KOTOX: A Korean Toxic Dataset for Deobfuscation and Detoxification

Yejin Lee, Su-Hyeon Kim, Hyundong Jin, Dayoung Kim, Yeonsoo Kim, Yo-Sub Han

arXiv, May. 2026

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NCO: A Versatile Plug-in for Handling Negative Constraints in Decoding

Hyundong Jin, Yo-Sub Han

arXiv, May. 2026

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STAB: Specification-driven Testing for Algorithmic Bottlenecks

Soohan Lim, Joonghyuk Hahn, Hyundong Jin, Yo-Sub Han

arXiv, May. 2026

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CRaFT: Circuit-Guided Refusal Feature Selection via Cross-Layer Transcoders

Su-Hyeon Kim, Hyundong Jin, Yejin Lee, Yo-Sub Han

arXiv, Apr. 2026

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How Does the Thinking Step Influence Model Safety? An Entropy-based Safety Reminder for LRMs

Su-Hyeon Kim, Hyundong Jin, Yejin Lee, Yo-Sub Han

arXiv, Jan. 2026

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Steering Language Models Before They Speak: Logit-Level Interventions

Hyeseon An, Shinwoo Park, Hyundong Jin, Yo-Sub Han

arXiv, Jan. 2026

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RegexPSPACE: A Benchmark for Evaluating LLM Reasoning on PSPACE-complete Regex Problems

Hyundong Jin, Joonghyuk Hahn, Yo-Sub Han

arXiv, Oct. 2025

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