@Inproceedings{MarcosTreviso_11_2021, author = "Marcos Treviso and Nuno M. Guerreiro and Ricardo Rei and Andr{\'e} F. T. Martins", title = "{IST-Unbabel} 2021 submission for the explainable quality estimation shared task", booktitle = "Proceedings of the 2nd Workshop on Evaluation and Comparison of NLP Systems", pages = "133–145", publisher = "Association for Computational Linguistics", location = "Punta Cana, Dominican Republic", year = 2021, month = nov, BibTexOrigem = "17158 www.Inesc-ID.pt 2023-02-01" }