Proving membership in LLM pretraining data via data watermarks Johnny Wei author Ryan Wang author Robin Jia author 2024-08 text Findings of the Association for Computational Linguistics: ACL 2024 Lun-Wei Ku editor Andre Martins editor Vivek Srikumar editor Association for Computational Linguistics Bangkok, Thailand conference publication wei-etal-2024-proving 10.18653/v1/2024.findings-acl.788 https://aclanthology.org/2024.findings-acl.788/ 2024-08 13306 13320