Using multiple edit distances to automatically rank machine translation output Yasuhiro Akiba author Kenji Imamura author Eiichiro Sumita author 2001-sep 18-22 text Proceedings of Machine Translation Summit VIII Bente Maegaard editor Santiago de Compostela, Spain conference publication akiba-etal-2001-using https://aclanthology.org/2001.mtsummit-papers.3/ 2001-sep 18-22