@inproceedings{treviso-etal-2021-ist,
    title = "{IST}-Unbabel 2021 Submission for the Explainable Quality Estimation Shared Task",
    author = "Treviso, Marcos  and
      Guerreiro, Nuno M.  and
      Rei, Ricardo  and
      Martins, Andr{\'e} F. T.",
    editor = "Gao, Yang  and
      Eger, Steffen  and
      Zhao, Wei  and
      Lertvittayakumjorn, Piyawat  and
      Fomicheva, Marina",
    booktitle = "Proceedings of the 2nd Workshop on Evaluation and Comparison of NLP Systems",
    month = nov,
    year = "2021",
    address = "Punta Cana, Dominican Republic",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/2021.eval4nlp-1.14/",
    doi = "10.18653/v1/2021.eval4nlp-1.14",
    pages = "133--145"
}