@inproceedings{jo-myaeng-2020-roles,
    title = "Roles and Utilization of Attention Heads in Transformer-based Neural Language Models",
    author = "Jo, Jae-young  and
      Myaeng, Sung-Hyon",
    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://aclanthology.org/2020.acl-main.311/",
    doi = "10.18653/v1/2020.acl-main.311",
    pages = "3404--3417"
}