The Impact of Syntactic and Semantic Proximity on Machine Translation
with Back-Translation
The Impact of Syntactic and Semantic Proximity on Machine Translation
with Back-Translation
Unsupervised on-the-fly back-translation, in conjunction with multilingual pretraining, is the dominant method for unsupervised neural machine translation. Theoretically, however, the method should not work in general. We therefore conduct controlled experiments with artificial languages to determine what properties of languages make back-translation an effective training method, covering lexical, syntactic, and …