Question and answer method and device, electronic equipment and storage medium

A technology of knowledge graph and question, applied in the field of information retrieval, can solve the problem of low accuracy

Active Publication Date: 2020-02-25
SUN YAT SEN UNIV
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Problems solved by technology

[0005] Various embodiments of the present invention provide a knowledge graph-based question answering method, device, electronic equipme

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  • Question and answer method and device, electronic equipment and storage medium
  • Question and answer method and device, electronic equipment and storage medium
  • Question and answer method and device, electronic equipment and storage medium

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Embodiment Construction

[0027] Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0028] As mentioned earlier, question answering systems rely on millions of pieces of information stored in knowledge graphs.

[0029] With the continuous development of computer technology and the rapid growth of information, the scale of the knowledge map constructed by the (subject, relation, object) semantic triples obtained from the information also increases rapidly, which increases the diffic...

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Abstract

The invention discloses a question and answer method and device based on a knowledge graph, electronic equipment and a storage medium. The question and answer method based on knowledge graph comprisesthe steps of obtaining a question sentence in response to a triggered user input request; performing entity linking on the entities in the questions obtained through named entity identification in aconstructed knowledge graph to obtain candidate entities; determining a search subgraph containing the candidate entities in the knowledge graph, and generating a plurality of candidate paths pointingto candidate answers by the candidate entities according to the search subgraph; and according to the context information of the question sentence, screening from the plurality of candidate paths toobtain a target path, and pushing a candidate answer pointed by the candidate entity in the target path as an answer of the question sentence to the user. By adopting the knowledge graph-based question and answer method and device, the electronic equipment and the storage medium provided by the invention, the problem of low accuracy of knowledge graph-based question and answer in the prior art issolved.

Description

technical field [0001] The present invention relates to the technical field of information retrieval, and in particular to a knowledge map-based question answering method, device, electronic equipment, and storage medium. Background technique [0002] Question Answering System (QA) is an advanced form in the field of information retrieval. It relies on millions of information stored in the knowledge graph, and then uses accurate and concise natural language to answer users' questions that are also based on natural language. [0003] At present, due to the large scale of the knowledge map, the question answering method based on the knowledge map may be missing when searching, or it is difficult to combine the structure of the knowledge map, making it difficult to get a real and effective answer to the question. [0004] It can be seen that there is still a defect in the prior art that the accuracy rate of the question answering based on the knowledge map is not high. Conte...

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Application Information

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IPC IPC(8): G06F16/332G06F16/36
CPCG06F16/3329G06F16/367
Inventor 任江涛程僚
Owner SUN YAT SEN UNIV
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