@inproceedings{zhou-etal-2021-multi,
    title = "Multi-Grained Knowledge Distillation for Named Entity Recognition",
    author = "Zhou, Xuan  and
      Zhang, Xiao  and
      Tao, Chenyang  and
      Chen, Junya  and
      Xu, Bing  and
      Wang, Wei  and
      Xiao, Jing",
    editor = "Toutanova, Kristina  and
      Rumshisky, Anna  and
      Zettlemoyer, Luke  and
      Hakkani-Tur, Dilek  and
      Beltagy, Iz  and
      Bethard, Steven  and
      Cotterell, Ryan  and
      Chakraborty, Tanmoy  and
      Zhou, Yichao",
    booktitle = "Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies",
    month = jun,
    year = "2021",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2021.naacl-main.454/",
    doi = "10.18653/v1/2021.naacl-main.454",
    pages = "5704--5716"
}