Machine translation is the task of translating a sentence in a source language to a different target language.
Results with a * indicate that the mean test score over the the best window based on average dev-set BLEU score over 21 consecutive evaluations is reported as in Chen et al. (2018).
Models are evaluated on the English-German dataset of the Ninth Workshop on Statistical Machine Translation (WMT 2014) based on BLEU.
Similarly, models are evaluated on the English-French dataset of the Ninth Workshop on Statistical Machine Translation (WMT 2014) based on BLEU.