@inproceedings{zang-etal-2020-word,
    title = "Word-level Textual Adversarial Attacking as Combinatorial Optimization",
    author = "Zang, Yuan  and
      Qi, Fanchao  and
      Yang, Chenghao  and
      Liu, Zhiyuan  and
      Zhang, Meng  and
      Liu, Qun  and
      Sun, Maosong",
    editor = "Jurafsky, Dan  and
      Chai, Joyce  and
      Schluter, Natalie  and
      Tetreault, Joel",
    booktitle = "Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics",
    month = jul,
    year = "2020",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest_wac_2008/2020.acl-main.540/",
    doi = "10.18653/v1/2020.acl-main.540",
    pages = "6066--6080"
}