PostMark: A Robust Blackbox Watermark for Large Language Models Yapei Chang author Kalpesh Krishna author Amir Houmansadr author John Frederick Wieting author Mohit Iyyer author 2024-11 text Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing Yaser Al-Onaizan editor Mohit Bansal editor Yun-Nung Chen editor Association for Computational Linguistics Miami, Florida, USA conference publication chang-etal-2024-postmark 10.18653/v1/2024.emnlp-main.506 https://aclanthology.org/2024.emnlp-main.506/ 2024-11 8969 8987