Method and system for improving question and answer accuracy of knowledge base
A knowledge base and accuracy technology, applied in the knowledge base question answering method and system field of relational inference, can solve problems such as fuzzy results, high cost, and no display of the final impact of relational inference, so as to achieve the effect of improving accuracy and enhancing effect
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[0045] The knowledge base multi-relationship problem relation inference method that the present invention proposes comprises the following steps:
[0046] 1) Obtain the subject entity of the user's question through the subject entity recognition tool, and obtain the path information of all candidate answers. The candidate answer starts from the subject entity and connects with the subject entity through the n-hop relationship in the knowledge base. point, the path information is the n-hop relationship path between the subject entity and the candidate entity. For example, the date of birth of Yao Ming's daughter. In this question, the subject entity is Yao Ming, and the answer is May 22, 2010, so the path information is Yao Ming (father-daughter relationship) and Yao Qinlei (birthday) May 22, 2010;
[0047] 2) For the questions entered by the user, preprocess the questions by removing punctuation marks and lowercase conversion, and use the mention of the subject entity in the ...
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