@inproceedings{liu-etal-2022-hiure,
    title = "{H}i{URE}: Hierarchical Exemplar Contrastive Learning for Unsupervised Relation Extraction",
    author = "Liu, Shuliang  and
      Hu, Xuming  and
      Zhang, Chenwei  and
      Li, Shu{'}ang  and
      Wen, Lijie  and
      Yu, Philip",
    editor = "Carpuat, Marine  and
      de Marneffe, Marie-Catherine  and
      Meza Ruiz, Ivan Vladimir",
    booktitle = "Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies",
    month = jul,
    year = "2022",
    address = "Seattle, United States",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2022.naacl-main.437/",
    doi = "10.18653/v1/2022.naacl-main.437",
    pages = "5970--5980"
}