TY - GEN T1 - Mitigating Catastrophic Forgetting in Target Language Adaptation of LLMs via Source-Shielded Updates T2 - arXiv PY - 2025/12/04 AU - Yamaguchi A AU - Morishita T AU - Villavicencio A AU - Aletras N ED - Y2 - 2025/12/22 ER -