@inproceedings{yin-etal-2026-compiling, title = "Compiling Activation Steering into Weights via Null-Space Constraints for Stealthy Backdoors", author = "Yin, Rui and Han, Tianxu and Xu, Naen and Li, Changjiang and He, Ping and Zhou, Chunyi and Wang, Jun and Fu, Zhihui and Du, Tianyu and Li, Jinbao and Ji, Shouling", editor = "Liakata, Maria and Moreira, Viviane P. and Zhang, Jiajun and Jurgens, David", booktitle = "Proceedings of the 64th Annual Meeting of the {A}ssociation for {C}omputational {L}inguistics (Volume 1: Long Papers)", month = jul, year = "2026", address = "San Diego, California, United States", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/ingest-acl/2026.acl-long.1206/", pages = "26228--26245", ISBN = "979-8-89176-390-6" }