@inproceedings{popovic-ney-2007-word,
    title = "Word Error Rates: Decomposition over {POS} classes and Applications for Error Analysis",
    author = "Popovi{\'c}, Maja  and
      Ney, Hermann",
    editor = "Callison-Burch, Chris  and
      Koehn, Philipp  and
      Fordyce, Cameron Shaw  and
      Monz, Christof",
    booktitle = "Proceedings of the Second Workshop on Statistical Machine Translation",
    month = jun,
    year = "2007",
    address = "Prague, Czech Republic",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/W07-0707/",
    pages = "48--55"
}