@inproceedings{blatz-etal-2004-confidence,
    title = "Confidence Estimation for Machine Translation",
    author = "Blatz, John  and
      Fitzgerald, Erin  and
      Foster, George  and
      Gandrabur, Simona  and
      Goutte, Cyril  and
      Kulesza, Alex  and
      Sanchis, Alberto  and
      Ueffing, Nicola",
    booktitle = "{COLING} 2004: Proceedings of the 20th International Conference on Computational Linguistics",
    month = "aug 23–aug 27",
    year = "2004",
    address = "Geneva, Switzerland",
    publisher = "COLING",
    url = "https://aclanthology.org/C04-1046/",
    pages = "315--321"
}