Findings of the WMT 2019 Shared Tasks on Quality Estimation
Erick Fonseca, Lisa Yankovskaya, Andr{\'e} F. T. Martins, Mark Fishel, Christian Federmann
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We report the results of the WMT19 shared task on Quality Estimation, i.e. the task of predicting the quality of the output of machine translation systems given just the source text and the hypothesis translations. The task includes estimation at three granularity levels: word, sentence and document. A novel addition is evaluating sentence-level QE against human judgments: in other words, designing MT metrics that do not need a reference translation. This year we include three language pairs, produced solely by neural machine translation systems. Participating teams from eleven institutions submitted a variety of systems to different task variants and language pairs.