2026 Multilingual Extracting and Emulsifying Cultural Explanation to Improve Multilingual Capability of LLMs Hamin Koo and Jaehyung Kim Annual Meeting of the Association for Computational Linguistics (ACL), Oral Presentation, 2026 PDF Code Jailbreak, Optimization Align to Misalign: Automatic LLM Jailbreak with Meta-Optimized LLM Judges Hamin Koo, Minseon Kim, and Jaehyung Kim International Conference on Learning Representations (ICLR), 2026 PDF Code Website 2024 RAG, Optimization Optimizing Query Generation for Enhanced Document Retrieval in RAG Hamin Koo, Minseon Kim, and Sungju Hwang Preprint, 2024 PDF