Watermarking PLMs on Classification Tasks by Combining Contrastive Learning with Weight Perturbation Chenxi Gu author Xiaoqing Zheng author Jianhan Xu author Muling Wu author Cenyuan Zhang author Chengsong Huang author Hua Cai author Xuanjing Huang author 2023-12 text Findings of the Association for Computational Linguistics: EMNLP 2023 Houda Bouamor editor Juan Pino editor Kalika Bali editor Association for Computational Linguistics Singapore conference publication gu-etal-2023-watermarking 10.18653/v1/2023.findings-emnlp.239 https://aclanthology.org/2023.findings-emnlp.239/ 2023-12 3685 3694