Patent Document ID: 9037449
Application ID: 13664881

Base Claim:
1. A method for establishing paraphrasing data for a machine translation system comprising: selecting a paraphrasing target sentence through application of an object language model to a translated sentence that is obtained by machine-translating a source language sentence; extracting, from a corpus DB for the source language, paraphrasing candidates that can be paraphrased with the selected paraphrasing target sentence; performing machine translation with respect to the extracted paraphrasing candidates; selecting a final paraphrasing candidate from the extracted paraphrasing candidates by applying the object language model to a result of the machine translation with respect to the extracted paraphrasing candidates; and confirming a paraphrasing relationship of the paraphrasing target sentence and the selected final paraphrasing candidate as paraphrasing lexical patterns using a bilingual corpus and storing the paraphrasing lexical patterns in a paraphrasing DB.

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Claim 9:
9. The method for establishing paraphrasing data for a machine translation system of claim 1 , wherein the selecting the final paraphrasing candidate selects the source language sentence that corresponds to the translated sentence having the highest frequency of use among the results of the machine translation with respect to the paraphrasing candidates.