@inproceedings{wang-etal-2026-fine, title = "Are Fine-Tuned {LLM} Membership Signals Real? Separating Memorization from Likelihood Shortcuts", author = "Wang, Zilong and Xu, Yingjie and Wu, Yutong and Li, Ruiyang and Ji, Qinglin and Tang, Xueming and Lu, Songfeng", 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.1544/", pages = "32850--32869", ISBN = "979-8-89176-462-0" }