Knowledge graph construction method and device

A knowledge map and construction method technology, which is applied in the direction of semantic tool creation, unstructured text data retrieval, text database query, etc., can solve the problems of unable to update the knowledge map, high error rate, time-consuming and labor-intensive, etc., and achieve strong scalability , high accuracy, and the effect of saving labor costs

Pending Publication Date: 2020-04-24
BOE TECH GRP CO LTD +1
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AI Technical Summary

Problems solved by technology

Most of the knowledge is extracted from the structured information in the encyclopedia, that is, the information box (infobox). The accuracy and recall of knowledge are highly dependent on the quality of manual annotation, which is not only time-consuming and laborious, but also has a high error rate, and cannot be timely Update the knowledge map in time

Method used

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  • Knowledge graph construction method and device
  • Knowledge graph construction method and device
  • Knowledge graph construction method and device

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Embodiment Construction

[0051] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0052] Embodiments of the present invention provide a method and device for constructing a knowledge map, which can improve the knowledge accuracy rate and recall rate of the knowledge map.

[0053] Embodiments of the present invention provide a method for constructing a knowledge map, such as figure 1 shown, including:

[0054]Step 101: Obtain multiple sets of data in a preset field, each set of data includes an entity name attribute and an attribute value corresponding to the entity name attribute;

[0055] Step 102: Using the multiple sets of data to construct an entity set, the entity set includes multiple entities in a preset field;

[0056] Step 103: Set a preset relationship between entity types according to the attribute freq...

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Abstract

The invention provides a knowledge graph construction method and device, and belongs to the technical field of data processing. The knowledge graph construction method comprises the steps that multiple sets of data of a preset domain are acquired, and each set of data comprises an entity name attribute and an attribute value corresponding to the entity name attribute; an entity set is constructedby utilizing the multiple groups of data, wherein the entity set comprises a plurality of entities in a preset domain; a preset relationship among entity types is set according to the attribute frequencies in the multiple groups of data, and a preset relationship set comprising a plurality of preset relationships is constructed; knowledge graph relations are extracted from the multiple sets of data, a triple set comprising multiple pieces of triple data is established, and each piece of triple data comprising two entities and the relation between the two entities; and the entity set, the preset relationship set and the triple set are integrated to obtain a knowledge graph. According to the technical scheme, the knowledge accuracy and recall rate of the knowledge graph can be improved.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to a method and device for constructing a knowledge graph. Background technique [0002] With the rapid development of society, we have entered the era of information explosion, and a large number of new entities and information are generated every day. As the most convenient information acquisition platform today, the Internet has increasingly urgent needs for effective information screening and summarization. How to obtain valuable information from massive data has become a difficult problem, and knowledge graphs came into being here. [0003] Knowledge graphs are mainly used to describe various entities and concepts in the real world, as well as the relationship between them. Each entity or concept is identified by a globally unique ID, which is called their identifier. Each "attribute-value" pair (attribute-value pair, AVP) is used to describe the intrinsic cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/33G06F16/36
CPCG06F16/3335G06F16/367G06F16/374
Inventor 张铭刘世兴朱熠恺琚玮戴自霖朱红文周莉陈雪邹声鹏代亚菲
Owner BOE TECH GRP CO LTD
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