Rethinking Stealthiness of Backdoor Attack against NLP Models Wenkai Yang author Yankai Lin author Peng Li author Jie Zhou author Xu Sun author 2021-08 text Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 1: Long Papers) Chengqing Zong editor Fei Xia editor Wenjie Li editor Roberto Navigli editor Association for Computational Linguistics Online conference publication yang-etal-2021-rethinking 10.18653/v1/2021.acl-long.431 https://aclanthology.org/2021.acl-long.431/ 2021-08 5543 5557