@inproceedings{xie-etal-2021-iie,
    title = "{IIE}-{NLP}-Eyas at {S}em{E}val-2021 Task 4: Enhancing {PLM} for {R}e{CAM} with Special Tokens, Re-Ranking, {S}iamese Encoders and Back Translation",
    author = "Xie, Yuqiang  and
      Xing, Luxi  and
      Peng, Wei  and
      Hu, Yue",
    editor = "Palmer, Alexis  and
      Schneider, Nathan  and
      Schluter, Natalie  and
      Emerson, Guy  and
      Herbelot, Aurelie  and
      Zhu, Xiaodan",
    booktitle = "Proceedings of the 15th International Workshop on Semantic Evaluation (SemEval-2021)",
    month = aug,
    year = "2021",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2021.semeval-1.22/",
    doi = "10.18653/v1/2021.semeval-1.22",
    pages = "199--204"
}