Backdoor Attacks on Pre-trained Models by Layerwise Weight Poisoning Linyang Li author Demin Song author Xiaonan Li author Jiehang Zeng author Ruotian Ma author Xipeng Qiu author 2021-11 text Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing Marie-Francine Moens editor Xuanjing Huang editor Lucia Specia editor Scott Wen-tau Yih editor Association for Computational Linguistics Online and Punta Cana, Dominican Republic conference publication li-etal-2021-backdoor 10.18653/v1/2021.emnlp-main.241 https://aclanthology.org/2021.emnlp-main.241/ 2021-11 3023 3032