@inproceedings{yi-etal-2026-sead, title = "{SEAD}: A Surrogate-free Label-only Membership Inference Attack against Pre-trained {LLM}s with Semantic-Aware Density", author = "Yi, Biao and Li, Jiahao and Li, Yiming and He, Yu and Zhang, Baolei and Liu, Zheli and Tao, Dacheng", editor = "Liakata, Maria and Moreira, Viviane P. and Zhang, Jiajun and Jurgens, David", booktitle = "Findings of the {A}ssociation for {C}omputational {L}inguistics: {ACL} 2026", month = jul, year = "2026", address = "San Diego, California, United States", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/ingest-acl/2026.findings-acl.337/", pages = "6794--6813", ISBN = "979-8-89176-395-1" }