Towards Robust Neural Machine Translation
Table 4: Case-sensitive BLEU scores on IWSLT English-French translation.
['Training', 'tst2014', 'tst2015']
Compared with our strong baseline system trained by MLE, we observe that our models consistently improve translation performance in all datasets. ASTfeature can achieve significant improvements on the tst2015 although ASTlexical obtains comparable results. These demonstrate that our approach maintains good performance on the non-normative text.