IMFD: End-to-end Multi-Face Forgery Detection through Instruction-based Large Vision-Language Models

Dasom Choi , Sangjun Moon , Hyeongchan Im , Jaeeon Park , Jingun Kwon* , Hidetaka Kamigaito, Manabu Okumura

AACL-IJCNLP2026 (Short paper) PDF Code 

TripPattern: A Pattern-based Text Watermarking Method for Large Language Models

Sangjun Moon , Dasom Choi , Jingun Kwon* , Hidetaka Kamigaito, Taro Watanabe, Manabu Okumura

AACL-IJCNLP2026 (Long paper) PDF Code 

Implicit Unwatermarking in Pseudo-Reference Reranking for LLM Watermarking

Sungwoo Han, Jingun Kwon* , Hidetaka Kamigaito, Manabu Okumura

EMNLP2026 (Short paper) PDF Code 

Random Character-Level Perturbations Amplify LLM Jailbreak Attacks

Shuyi Yu, Zhe Cao, Kohei Tsuji, Yusuke Sakai, Hidetaka Kamigaito, Jingun Kwon, Manabu Okumura, Taro Watanabe

TMLR2026 PDF Code 

Measuring Watermarking under Jailbreaking: ASR Inflation and Goal-Compliance Mismatch

Sungwoo Han† , Sangjun Moon† , Jingun Kwon* , Hidetaka Kamigaito, Manabu Okumura

ACL2026 (Short paper) PDF Code 

Simile Understanding in Text-to-Image Models: An Evaluation Framework

Luecheng Wang, Shintaro Ozaki, Hidetaka Kamigaito, Katsuhiko Hayashi, Jingun Kwon, Manabu Okumura, 

Taro Watanabe 

ACMMM 2026 PDF Code 

MMCIG: Multimodal Cover Image Generation for Text-only Documents and Its Dataset Construction via Pseudo-labeling

Hyeyeon Kim† , Sungwoo Han† , Jingun Kwon* , Hidetaka Kamigaito, Manabu Okumura

LREC2026 PDF Code 

Beyond Sampling: Self-Sorting for Long-Context Ranking

Juseon-Do† , Sungwoo Han† , Jingun Kwon* , Hidetaka Kamigaito, Manabu Okumura, Taro Watanabe

EACL2026 (Short paper) PDF Code 

ConRAS: Contrastive In-context Learning Framework for Retrieval-Augmented Summarization

Juseon-Do† , Sungwoo Han† , Jingun Kwon* , Hidetaka Kamigaito, Manabu Okumura

EACL2026 (Long paper) PDF Code 

Length Representations in Large Language Models

Sangjun Moon† , Dasom Choi† , Jingun Kwon* , Hidetaka Kamigaito, Manabu Okumura

EMNLP2025 (Long paper) PDF Code 

gMBA: Expression Semantic Guided Mixed Boolean-Arithmetic Deobfuscation Using Transformer Architectures

Youjeong Noh, Joon-Young Paik, Jingun Kwon*, Eun-Sun Cho

ACL2025 (Short paper) PDF Code 

Considering Length Diversity in Retrieval-Augmented Summarization

Juseon Do†, Jaesung Hwang†, Jingun Kwon*, Hidetaka Kamigaito, Manabu Okumura

NAACL2025 (Short paper) PDF Code

InstructCMP: Length Control in Sentence Compression through Instruction-based Large Language Models

Juseon Do, Jingun Kwon*, Hidetaka Kamigaito, Manabu Okumura

ACL 2024 (Long paper) PDF  Code 

Abstractive Document Summarization with Summary-length Prediction

Jingun Kwon, Hidetaka Kamigaito, Manabu Okumura

EACL 2023 PDF

Hierarchical Label Generation for Text Classification

Jingun Kwon, Hidetaka Kamigaito, Young-In Song, Manabu Okumura

EACL 2023 PDF 

Joint Modeling of Emoji Position and Its Label for Better Understanding in Social Media

Jingun Kwon, Kobayashi Naoki, Hidetaka Kamigaito, Hiroya Takamura, Manabu Okumura

Journal of Natural Language Processing PDF 

Considering Nested Tree Structure in Sentence Extractive Summarization with Pre-trained Transformer

Jingun Kwon, Naoki Kobayashi, Hidetaka Kamigaito, Manabu Okumura

EMNLP 2021 PDF 

A New Surprise Measure for Extracting Interesting Relationships between Persons

Hidetaka Kamigaito, Jingun Kwon, Young-In Song, Manabu Okumura

EACL 2021 PDF 

Hierarchical Trivia Fact Extraction from Wikipedia Articles

Jingun Kwon, Hidetaka Kamigaito, Young-in Song, Manabu Okumura

Coling 2020 PDF 

Bridging between Emojis and Kaomojis by Learning their Representations from Linguistic and Visual Information

Jingun Kwon, Naoki Kobayashi, Hidetaka Kamigaito, Hiroya Takamura, Manabu Okumura

IEEE/WIC/ACM 2019 PDF