@inproceedings{zhang-etal-2026-activation, title = "Activation-Space Anchored Access Control for Multi-Class Permission Reasoning in Large Language Models", author = "Zhang, Zhaopeng and Sun, Pengcheng and Zhang, Lan and Tang, Chen and Lai, Jiewei and Zhuang, Xirong and Wang, Yunhao and Jin, Hui and Liu, Li", 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.908/", pages = "19224--19240", ISBN = "979-8-89176-462-0" }