Comparative Quality Estimation: Automatic Sentence-Level Ranking of Multiple Machine Translation Outputs Eleftherios Avramidis author 2012-12 text Proceedings of COLING 2012 Martin Kay editor Christian Boitet editor The COLING 2012 Organizing Committee Mumbai, India conference publication avramidis-2012-comparative https://aclanthology.org/C12-1008/ 2012-12 115 132