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Topic knowledge graph construction method and device

A technology of subject knowledge and construction method, applied in the field of knowledge graph, can solve the problems of low efficiency of knowledge graph and low degree of model interpretability, and achieve the effect of good interpretability, improved organizational efficiency, and high degree of visualization

Active Publication Date: 2021-05-07
浙江富润数链科技有限公司 +1
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Problems solved by technology

At present, the efficiency of knowledge graph in traditional algorithms is not high, and the degree of model interpretation is low

Method used

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  • Topic knowledge graph construction method and device
  • Topic knowledge graph construction method and device
  • Topic knowledge graph construction method and device

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Embodiment Construction

[0033] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0034] The general idea of ​​this application is to propose a method for constructing a topic knowledge graph to ensure that it can effectively solve the problems of low utilization rate of user information, low accuracy of knowledge graph construction and poor interpretability caused by high-dimensional data in traditional methods.

[0035] An example of this application, such as figure 1 , figure 2 As shown, a topic knowledge map construction method, including:

[0036] Step S1. Collect user-related data information, construct a corpus, record each word in the corpus as a user feature...

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Abstract

The invention discloses a topic knowledge graph construction method and device. The method comprises the following steps: collecting user related data information, constructing a corpus, recording each word in the corpus as a user feature, and extracting a topic through linear discriminant analysis; adopting a genetic algorithm, employing each chromosome for representing one topic selection, calculating the suitability between the topic and the user features based on a vector space model, and constructing a user knowledge structure; and finally, transforming the user knowledge structures into coordinate matrixes by adopting a multi-dimensional calibration method, performing weighting processing on the transformed coordinate matrixes by utilizing a genetic algorithm to obtain weights corresponding to themes in each coordinate matrix, calculating a hydrophilic-hydrophobic relationship among the user knowledge structures, and constructing a knowledge graph. The method effectively helps to understand the complex relationship between the user objects in the space, realizes related integration of massive information of the user, is high in visualization degree and good in interpretability, and can help enterprises in related fields to enhance communication and share public practice and improve organization efficiency.

Description

technical field [0001] The invention belongs to the technical field of knowledge graphs, and in particular relates to a method and device for constructing subject knowledge graphs. More specifically, a method for constructing subject knowledge graphs based on genetic algorithms and MDS is proposed. Background technique [0002] With the rapid development of the information age, the user-related information obtained by enterprises is huge, which makes it difficult and time-consuming for enterprises to obtain user knowledge. Knowledge graph, as an important subfield of knowledge management, helps to describe what, how and where useful knowledge can be found in an organization. Therefore, the focus of building a knowledge graph is to help enterprises obtain relevant user knowledge useful to them from massive user information databases. [0003] At present, the research on knowledge graph is still in its infancy, and the research mainly focuses on several aspects such as networ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/36G06F40/279G06N3/12
CPCG06F16/367G06F40/279G06N3/126Y02D10/00
Inventor 江有归姜可平周军贾莉芳江璐陈春云陈红军
Owner 浙江富润数链科技有限公司
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