@inproceedings{zhang-etal-2026-raset, title = "{RASET}: Router-Agnostic Safety-Critical Expert Tuning Exposes Localized Safety Enforcement Failures in Mixture-of-Experts {LLM}s", author = "Zhang, Zhibo and Li, Yuxi and Ouyang, Zhen and Shi, Ling and Wang, Kailong", editor = "Lee, Hung-Yi and Dev, Sunipa and Li, Jessy and Elliott, Desmond", booktitle = "Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing", month = oct, year = "2026", address = "Budapest, Hungary", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/2026.emnlp-main.2145/", pages = "48770--48789", ISBN = "979-8-89176-459-0" }