@inproceedings{wu-etal-2026-imf, title = "{I}m{F}: Embedding an Implicit Fingerprint in Your Large Language Models", author = "Wu, Jiaxuan and Peng, Wanli and fu, Hang and Yiming, Xue and Wen, Juan", 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.1183/", pages = "25804--25825", ISBN = "979-8-89176-390-6" }