@inproceedings{lee-etal-2026-router, title = "Router Prior Bias: Preserving Base Routing Structure in {M}o{E} Post-Training", author = "Lee, Jaedeok and Kim, Keonwoo and Han, Dongyoon and Yun, Sangdoo and Choi, Yera and Yoo, Haanju", editor = "Lee, Hung-Yi and Dev, Sunipa and Li, Jessy and Elliott, Desmond", booktitle = "Findings of the {A}ssociation for {C}omputational {L}inguistics: {EMNLP} 2026", month = oct, year = "2026", address = "Budapest, Hungary", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/2026.findings-emnlp.2339/", doi = "10.18653/2026.findings-emnlp.2339", pages = "50281--50301", ISBN = "979-8-89176-462-0" }