Article contents
Backward and trigger-based language models for statistical machine translation
Published online by Cambridge University Press: 24 July 2013
Abstract
The language model is one of the most important knowledge sources for statistical machine translation. In this article, we present two extensions to standard n-gram language models in statistical machine translation: a backward language model that augments the conventional forward language model, and a mutual information trigger model which captures long-distance dependencies that go beyond the scope of standard n-gram language models. We introduce algorithms to integrate the two proposed models into two kinds of state-of-the-art phrase-based decoders. Our experimental results on Chinese/Spanish/Vietnamese-to-English show that both models are able to significantly improve translation quality in terms of BLEU and METEOR over a competitive baseline.
- Type
- Articles
- Information
- Copyright
- Copyright © Cambridge University Press 2013
References
- 2
- Cited by