Two-Step Machine Translation with Lattices
Bushra Jawaid, Ondřej Bojar · 2014
The idea of two-step machine translation was introduced to divide the complexity of the search space into two independent steps: (1) lexical translation and reordering, and (2) conjugation and declination in the target language.In this paper, we extend the two-step machine translation structure by replacing state-of-the-art phrase-based machine translation with the hierarchical machine translation in the 1 st step.We further extend the fixed string-based input format of the 2 nd step with word lattices (Dyer et al., 2008); this provides the 2 nd step with the opportunity to choose among a sample of possible reorderings instead of relying on the single best one as produced by the 1 st step.