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Non-projective parsing for statistical machine translation
Carreras Pérez, Xavier; Collins, Michael
Universitat Politècnica de Catalunya. GPLN - Grup de Processament del Llenguatge Natural
We describe a novel approach for syntaxbased statistical MT, which builds on a variant of tree adjoining grammar (TAG). Inspired by work in discriminative dependency parsing, the key idea in our approach is to allow highly flexible reordering operations during parsing, in combination with a discriminative model that can condition on rich features of the sourcelanguage string. Experiments on translation from German to English show improvements over phrase-based systems, both in terms of BLEU scores and in human evaluations.
Peer Reviewed
Àrees temàtiques de la UPC::Informàtica::Intel·ligència artificial::Llenguatge natural
Computational linguistics
Lingüística computacional
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