Paper: Effective Incorporation of Source Syntax into Hierarchical Phrase-based Translation

ACL ID C14-1195
Title Effective Incorporation of Source Syntax into Hierarchical Phrase-based Translation
Venue International Conference on Computational Linguistics
Session Main Conference
Year 2014
Authors

In this paper we explicitly consider source language syntactic information in both rule extraction and decoding for hierarchical phrase-based translation. We obtain tree-to-string rules by the GHKM method and use them to complement Hiero-style rules. All these rules are then employed to decode new sentences with source language parse trees. We experiment with our approach in a state-of-the-art Chinese-English system and demonstrate +1.2 and +0.8 BLEU improvements on the NIST newswire and web evaluation data of MT08 and MT12.