NUS at WMT09: Domain Adaptation Experiments for English-Spanish Machine Translation of News Commentary Text

We describe the system developed by the team of the National University of Singapore for English to Spanish machine translation of News Commentary text for the WMT09 Shared Translation Task. Our approach is based on domain adaptation, combining a small in-domain News Commentary bi-text and a large out-of-domain one from the Europarl corpus, from which we built and combined two separate phrase tables. We further combined two language models (in-domain and out-of-domain), and we experimented with cognates, improved tokenization and recasing, achieving the highest lowercased NIST score of 6.963 and the second best lowercased Bleu score of 24.91% for training without using additional external data for English-to-Spanish translation at the shared task.

• Publication year

  2009

• Venue

  WMT@EACL

• Publication date

  2009-03-30

• Fields of study

  Linguistics, Computer Science

• Identifiers
  DOI 10.3115/1626431.1626447
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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