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|Title:||A hybrid morpheme-word representation for machine translation of morphologically rich languages|
|Authors:||Luong, M.-T. |
|Citation:||Luong, M.-T.,Nakov, P.,Kan, M.-Y. (2010). A hybrid morpheme-word representation for machine translation of morphologically rich languages. EMNLP 2010 - Conference on Empirical Methods in Natural Language Processing, Proceedings of the Conference : 148-157. ScholarBank@NUS Repository.|
|Abstract:||We propose a language-independent approach for improving statistical machine translation for morphologically rich languages using a hybrid morpheme-word representation where the basic unit of translation is the morpheme, but word boundaries are respected at all stages of the translation process. Our model extends the classic phrase-based model by means of (1) word boundary-aware morpheme-level phrase extraction, (2) minimum error-rate training for a morpheme-level translation model using word-level BLEU, and (3) joint scoring with morpheme- and word-level language models. Further improvements are achieved by combining our model with the classic one. The evaluation on English to Finnish using Europarl (714K sentence pairs; 15.5M English words) shows statistically significant improvements over the classic model based on BLEU and human judgments. © 2010 Association for Computational Linguistics.|
|Source Title:||EMNLP 2010 - Conference on Empirical Methods in Natural Language Processing, Proceedings of the Conference|
|Appears in Collections:||Staff Publications|
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