Paper: A Structured Language Model for Incremental Tree-to-String Translation

ACL ID C14-1107
Title A Structured Language Model for Incremental Tree-to-String Translation
Venue International Conference on Computational Linguistics
Session Main Conference
Year 2014
Authors

Tree-to-string systems have gained significant popularity thanks to their simplicity and efficien- cy by exploring the source syntax information, but they lack in the target syntax to guarantee the grammaticality of the output. Instead of using complex tree-to-tree models, we integrate a structured language model, a left-to-right shift-reduce parser in specific, into an incremental tree-to-string model, and introduce an efficient grouping and pruning mechanism for this integra- tion. Large-scale experiments on various Chinese-English test sets show that with a reasonable speed our method gains an average improvement of 0.7 points in terms of (Ter-Bleu)/2 than a state-of-the-art tree-to-string system.