Estimation of confidence measures for machine translation Alberto Sanchis author Alfons Juan author Enrique Vidal author 2007-sep 10-14 text Proceedings of Machine Translation Summit XI: Papers Bente Maegaard editor Copenhagen, Denmark conference publication sanchis-etal-2007-estimation https://aclanthology.org/2007.mtsummit-papers.54/ 2007-sep 10-14