We describe a mixture-model approach to adapting a Statistical Machine Translation System for new domains, using weights that depend on text distances to mixture components. We investigate a number of variants on this approach, including cross-domain versus dynamic adaptation; linear versus loglinear mixtures; language and translation model adaptation; different methods of assigning weights; and granularity of the source unit being adapted to. The best methods achieve gains of approximately one BLEU percentage point over a state-of-the art non-adapted baseline system.
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PUBLICATION RECORD
- Publication year
2007
- Venue
WMT@ACL
- Publication date
2007-06-23
- Fields of study
Linguistics, Computer Science
- Identifiers
- External record
- Source metadata
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