Knowledge graph construction method and device and knowledge graph retrieval method and device

A technology of knowledge map and construction method, applied in the field of retrieval method and device, knowledge map construction, can solve the problems of cumbersome data operation and low efficiency, and achieve the effect of realizing sharing and reuse, improving accuracy and improving retrieval efficiency.

Active Publication Date: 2020-06-19
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of cumbersome operations and low efficiency in knowledge representation, sharing and reuse, data retrieval, and concept matching in the prior art, thereby providing a knowledge graph construction, retrieval method and device

Method used

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  • Knowledge graph construction method and device and knowledge graph retrieval method and device
  • Knowledge graph construction method and device and knowledge graph retrieval method and device
  • Knowledge graph construction method and device and knowledge graph retrieval method and device

Examples

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Embodiment 1

[0030] This embodiment provides a knowledge map construction method, which is applied to the relational data of power terminal equipment, such as figure 1 shown, including the following steps:

[0031] S11: Obtain a relational data table of at least one power terminal device.

[0032] Exemplarily, the above-mentioned power terminal equipment may include one or more of distribution terminal equipment (DTU), feeder terminal equipment (FTU), load terminal equipment (LCT), billing control unit equipment (TCU), etc., the above relationship The data table can be retrieved from the database, and the relational data table includes device name, voltage level, device model, date of manufacture, operating system used, version number of the operating system, version number of the firmware main program, protocol and version used, etc.

[0033] S12: Construct a knowledge map concept layer and a knowledge map instance layer according to the relational data table.

[0034] Exemplarily, the ...

Embodiment 2

[0086] An embodiment of the present invention provides a retrieval method, such as figure 2 shown, including:

[0087] S21: Obtain the information to be retrieved.

[0088] S22: In the knowledge graph obtained by the knowledge graph construction method described in Embodiment 1, search according to the information to be retrieved to obtain a corresponding retrieval result.

[0089] Exemplarily, in the embodiment of the present invention, for example, querying the voltage level of a power distribution terminal device can be queried by querying the power distribution terminal device and the voltage level, and the power distribution terminal device can be directly obtained according to the triple set of knowledge graphs The voltage level is AC220V. If you use the traditional retrieval mechanism to query according to the keywords power distribution terminal equipment and voltage level, you will get multiple related pages described in the relational database or text, and then the...

Embodiment 3

[0091] An embodiment of the present invention provides a knowledge map construction device, such as image 3 shown, including:

[0092] The first obtaining module 31 is configured to obtain a relational data table of at least one power terminal device; for a specific implementation, please refer to the relevant description of step S11 in Embodiment 1, which will not be repeated here.

[0093] The construction module 32 is configured to construct a knowledge map concept layer and a knowledge map instance layer according to the relational data table. For the specific implementation manner, refer to the relevant description of step S12 in Embodiment 1, which will not be repeated here.

[0094] The combining module 33 is configured to combine the concept layer of the knowledge graph and the instance layer of the knowledge graph to form a knowledge graph. For the specific implementation manner, refer to the relevant description of step S13 in Embodiment 1, which will not be repea...

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Abstract

The invention discloses a knowledge graph construction method and device and a knowledge graph retrieval method and device, and is applied to a relational data table of power terminal equipment, and the knowledge graph construction method comprises the steps: obtaining the relational data table of at least one power terminal equipment; constructing a knowledge graph concept layer and a knowledge graph instance layer according to the relational data table; and combining the knowledge graph concept layer and the knowledge graph instance layer to form a knowledge graph. According to the method, the table data is converted into the concept layer and the instance layer, so that the relationship between the relational data can be reflected more clearly, and the accuracy of user demand understanding and resource description is improved.

Description

technical field [0001] The present invention relates to the technical field of knowledge graphs, in particular to a method and device for constructing and retrieving knowledge graphs. Background technique [0002] With the rapid development of information technology, my country's power system has also entered a stage of rapid development. The ubiquitous power Internet of Things is the backbone of the future power system. It is a smart service system characterized by the interconnection of all things, human-computer interaction, comprehensive perception, efficient information processing, and convenient and flexible application. Therefore, stakeholders in power system fields such as generation, transmission, distribution, marketing, and improvement can make full use of the ubiquitous power Internet to expand their business. However, there is a large amount of complex data information in the ubiquitous power Internet, so how to perform efficient data query, data reasoning, data...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/33G06F16/36
CPCG06F16/3344G06F16/367Y04S10/50
Inventor 柴博张强宋博川贾全烨邵炜平
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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