Patent Document ID: 9569527
Application ID: 13618337

Base Claim:
1. A computer-implemented method comprising: identifying a plurality of documents having one or more questions and, for each question, a corresponding answer; generating a plurality of question-answer pairs from the questions and respective corresponding answers occurring in the plurality of documents; training a statistical machine translation model using the plurality of question-answer pairs, including using each question of each question-answer pair as a source language input and a corresponding answer of the question-answer pair as a target language input, wherein each question and each corresponding answer are in the same natural language; translating, using the statistical machine translation model trained on the plurality of question-answer pairs, a phrase into one or more corresponding translated phrases; and determining one or more synonym pairs by comparing the phrase with the one or more corresponding translated phrases.

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Claim 3:
3. The method of claim 1 , wherein determining one or more synonym pairs comprises: computing a translation likelihood for a phrase and a corresponding translated phrase; generating a synonym pair from a term in the phrase and a corresponding translated term in the corresponding translated phrase; assigning a score to the synonym pair, wherein the score is derived from the translation likelihood of the phrase and the corresponding translated phrase; and determining that the term and the corresponding translated term are synonyms using the assigned score of the synonym pair.