NATURAL LANGUAGE QUESTION ANSWERING SYSTEM AND METHOD, AND PARAPHRASE MODULE
First Claim
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1. A natural language question answering system, comprising:
- a conversion module configured to generate a plurality of modified questions by paraphrasing a user'"'"'s question;
a plurality of question answering engines configured to receive each of the user'"'"'s question and the modified questions, and select candidate answers corresponding to each of the user'"'"'s question and the modified questions; and
a detection module configured to detect at least one among the searched candidate answers as an answer.
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Abstract
A natural language question answering system and method, and a paraphrase module are provided. The natural language question answering system includes a conversion module configured to generate a plurality of modified questions by paraphrasing a user'"'"'s question; a plurality of question answering engines configured to receive each of the user'"'"'s question and the modified questions, and select candidate answers corresponding to each of the user'"'"'s question and the modified questions; and a detection module configured to detect at least one among the selected candidate answers as an answer.
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20 Claims
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1. A natural language question answering system, comprising:
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a conversion module configured to generate a plurality of modified questions by paraphrasing a user'"'"'s question; a plurality of question answering engines configured to receive each of the user'"'"'s question and the modified questions, and select candidate answers corresponding to each of the user'"'"'s question and the modified questions; and a detection module configured to detect at least one among the searched candidate answers as an answer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A paraphrase module, comprising:
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an analysis unit configured to analyze a user'"'"'s question; and a conversion unit configured to perform at least one of an operation of substituting a word or a phrase of another language for a word or a phrase included in the user'"'"'s question, and an operation of changing a sentence structure of the user'"'"'s question and substituting a synonym for the word included in the user'"'"'s question, and generate a plurality of modified questions in which the user'"'"'s question is paraphrased, wherein the user'"'"'s question and the plurality of modified questions are provided to a plurality of question answering engines. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A natural language question answering method by a natural language question answering system, comprising:
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generating a plurality of modified questions by paraphrasing a user'"'"'s question; receiving each of the user'"'"'s question and the modified questions by a plurality of question answering engines, and selecting candidate answers corresponding to each of the user'"'"'s question and the modified questions; and detecting at least one among the searched candidate answers as an answer. - View Dependent Claims (18, 19, 20)
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Specification