@inproceedings{yang-etal-2021-rethinking,
    title = "Rethinking Stealthiness of Backdoor Attack against {NLP} Models",
    author = "Yang, Wenkai  and
      Lin, Yankai  and
      Li, Peng  and
      Zhou, Jie  and
      Sun, Xu",
    editor = "Zong, Chengqing  and
      Xia, Fei  and
      Li, Wenjie  and
      Navigli, Roberto",
    booktitle = "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)",
    month = aug,
    year = "2021",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/2021.acl-long.431/",
    doi = "10.18653/v1/2021.acl-long.431",
    pages = "5543--5557"
}