A question and answer analysis and processing method and system based on educational knowledge graph

A technology of knowledge graph and processing method, applied in the field of question and answer analysis and processing based on educational knowledge graph, can solve problems such as lack of educational knowledge graph, inability to give accurate answers, and inability to understand user intentions in the field of primary and secondary school knowledge, so as to improve learning The effect of pertinence and learning efficiency, improving the accuracy of semantic understanding

Active Publication Date: 2022-03-11
BEIJING NORMAL UNIVERSITY
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is: to overcome the shortcomings of the prior art based on the keyword matching retrieval question and answer database that cannot understand the user's intention and cannot give accurate answers, and the lack of educational knowledge maps in the knowledge field of primary and secondary schools

Method used

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  • A question and answer analysis and processing method and system based on educational knowledge graph
  • A question and answer analysis and processing method and system based on educational knowledge graph
  • A question and answer analysis and processing method and system based on educational knowledge graph

Examples

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example 1

[0062] question What is the color of chlorophyll a? rule [(chlorophyll a, N) (color, e)] matching rule 1 search path See attached image 3 The result of searching the color of chlorophyll a in the graph database is blue-green Answer blue-green combination answer The color of chlorophyll a is blue-green

example 2

[0064] question What pigment is blue-green in color? rule [(color,e)(blue-green,N)] matching rule 2 search path See attached Figure 4 The color of chlorophyll a retrieved in the graph database is blue-green Answer Chlorophyll a combination answer The color of chlorophyll a is blue-green

example 3

[0066] question What is the relationship between photosynthesis and light reactions? rule [(photosynthesis, N) (photoreaction, N)] matching rule three search path See attached Figure 5 Retrieve the subprocesses of photosynthesis including photoreactions in a graph database Answer sub-process combination answer The subprocess of photosynthesis is the light reaction

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Abstract

The invention relates to a method and system for question and answer analysis and processing based on an educational knowledge graph, including: a building module of the educational knowledge graph, a question preprocessing module, a question and answer analysis and processing module, and a postprocessing module. The present invention can solve precise answers to questions in the field of education, is applicable to general education scenarios, and can also be used in students' self-study tutoring to improve learners' learning interest and learning effect.

Description

technical field [0001] The invention relates to a question-and-answer analysis and processing method and system based on an educational knowledge map, and belongs to the technical field of fusion of knowledge map technology and education. Background technique [0002] The question answering system based on knowledge graph has two core issues, front-end semantic understanding and back-end knowledge graph construction. The knowledge graph vividly describes the complex relationships between concepts and entities in the objective world in a structured form. At present, knowledge bases in various fields are gradually being constructed, but there is no educational knowledge map for primary and secondary school subjects. In the aspect of back-end knowledge graph construction, the present invention constructs an educational knowledge graph specifically for primary and secondary school subjects, and invents a knowledge point and relationship extraction algorithm in terms of front-en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/33G06F16/36G06Q50/20
CPCG06Q50/20
Inventor 余胜泉陈锡洋陈鹏鹤卢宇
Owner BEIJING NORMAL UNIVERSITY
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