@inproceedings{guan-huang-2020-union,
    title = "{UNION}: {A}n {U}nreferenced {M}etric for {E}valuating {O}pen-ended {S}tory {G}eneration",
    author = "Guan, Jian  and
      Huang, Minlie",
    editor = "Webber, Bonnie  and
      Cohn, Trevor  and
      He, Yulan  and
      Liu, Yang",
    booktitle = "Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP)",
    month = nov,
    year = "2020",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/Add-Cong-Liu-Florida-Atlantic-University-author-id/2020.emnlp-main.736/",
    doi = "10.18653/v1/2020.emnlp-main.736",
    pages = "9157--9166"
}