Machine Translation of Restaurant Reviews:New Corpus for Domain Adaptation and Robustness
Table 6: Comparison of different back-translation schemes (see Section 5.1). ⊕ denotes the concatenation of several training corpora.
['Model', 'news', 'test']
Surprisingly, BT with beam search (BT-B) deteriorates BLEU scores on Foursquare-test, while BT with sampling gives a consistent improvement. BLEU scores on newstest2014 are not significantly impacted, suggesting that BT can be used for domain adaptation without hurting quality on other domains.