Efficient online domain adaptation

  • US 9,213,694 B2
  • Filed: 10/10/2013
  • Issued: 12/15/2015
  • Est. Priority Date: 10/10/2013
  • Status: Active Grant
First Claim
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1. A method of immediately updating a machine translation system with post-edits during translation of a document, using a machine translation system that comprises a processor and a memory for storing logic that is executed by the processor to perform the method, comprising:

  • receiving a post-edited machine translated sentence pair, the post-edited machine translated sentence pair comprising a source sentence unit and a post-edited target sentence unit;

    updating a machine translation model by;

    performing an alignment of the post-edits of the machine translated sentence pair to generate phrases; and

    adding the phrases to the machine translation model;

    adapting a language model from the post-edited target sentence unit;

    calculating translation statistics for the post-edits;

    adjusting translation weights using the translation statistics while generating test machine translations of the machine translated sentence pair until one of the test machine translations approximately matches the post-edits for the machine translated sentence pair; and

    retranslating remaining machine translation sentence pairs that have yet to be post-edited using the updated machine translation model and the adjusted translation weights.

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