Yushi Xu


2010

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Dialogue Management Based on Entities and Constraints
Yushi Xu | Stephanie Seneff
Proceedings of the SIGDIAL 2010 Conference

2009

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Speech-Based Interactive Games for Language Learning: Reading, Translation, and Question-Answering
Yushi Xu | Stephanie Seneff
International Journal of Computational Linguistics & Chinese Language Processing, Volume 14, Number 2, June 2009-Special Issue on Computer Assisted Language Learning

2008

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Two-Stage Translation: A Combined Linguistic and Statistical Machine Translation Framework
Yushi Xu | Stephanie Seneff
Proceedings of the 8th Conference of the Association for Machine Translation in the Americas: Research Papers

We propose a two-stage system for spoken language machine translation. In the first stage, the source sentence is parsed and paraphrased into an intermediate language which retains the words in the source language but follows the word order of the target language as much as feasible. This stage is mostly linguistic. In the second stage, a statistical MT is performed to translate the intermediate language into the target language. For the task of English-to-Mandarin translation, we achieved a 2.5 increase in BLEU score and a 45% decrease in GIZA-Alignment Crossover, on IWSLT-06 data. In a human evaluation of the sentences that differed, the two-stage system was preferred three times as often as the baseline.