Syntax-based Rewriting for Simultaneous Machine Translation
He He, Alvin Grissom, John Morgan, Jordan Lee Boyd-Graber, Hal Daumé · 2015
Divergent word order between languages causes delay in simultaneous machine translation.We present a sentence rewriting method that generates more monotonic translations to improve the speedaccuracy tradeoff.We design grammaticality and meaning-preserving syntactic transformation rules that operate on constituent parse trees.We apply the rules to reference translations to make their word order closer to the source language word order.On Japanese-English translation (two languages with substantially different structure), incorporating the rewritten, more monotonic reference translation into a phrase-based machine translation system enables better translations faster than a baseline system that only uses gold reference translations.