@inproceedings{xia-etal-2019-multi,
    title = "Multi-grained Named Entity Recognition",
    author = "Xia, Congying  and
      Zhang, Chenwei  and
      Yang, Tao  and
      Li, Yaliang  and
      Du, Nan  and
      Wu, Xian  and
      Fan, Wei  and
      Ma, Fenglong  and
      Yu, Philip",
    editor = "Korhonen, Anna  and
      Traum, David  and
      M{\`a}rquez, Llu{\'i}s",
    booktitle = "Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics",
    month = jul,
    year = "2019",
    address = "Florence, Italy",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P19-1138/",
    doi = "10.18653/v1/P19-1138",
    pages = "1430--1440"
}