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GraphDB-based space-time knowledge graph construction method and device, medium and equipment

A technology of knowledge graph and construction method, applied in the direction of knowledge expression, reasoning method, semantic tool creation, etc., can solve the problems of multi-source information unable to coordinate work, unable to accurately express time and space information, information perception island phenomenon, etc.

Active Publication Date: 2021-04-30
AEROSPACE INFORMATION RES INST CAS
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Problems solved by technology

[0002] In traditional technology, expressing the feature information in remote sensing images through a graph database can greatly enrich the feature information, but the graph database cannot perform good reasoning, cannot accurately express time and space information, and multi-source information cannot coordinate work. There is a serious island phenomenon in information perception

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  • GraphDB-based space-time knowledge graph construction method and device, medium and equipment

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[0035]In order to make the objects, technical solutions, and advantages of this paper more clearly, the technical solutions in the examples will be described in the following examples, which will be described herein. Part of embodiments, not all embodiments. Based on the embodiments herein, one of ordinary skill in the art does not have all other embodiments obtained without creative labor, all of which are protected herein. It should be noted that the features in the embodiments and embodiments herein may be any combination of each other in the case of an unable conflict.

[0036]Traditionally, people can only determine the geographic spatial distribution and environmental status of the target entity, but cannot be known more detailed information. By establishing a graph database, people can supplement the various geographic attribute information of the target entity, but this information cannot perform queries in the time and space, nor can it be reasonably informing the knowledge in...

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Abstract

The invention relates to a GraphDB-based space-time knowledge graph construction method and device, a medium and equipment. The method comprises the following steps: fusing an OGC standard to construct an architecture of a geographic entity; extracting data related to the geographic entity in the spatio-temporal data to generate an individual knowledge set of the target object; and storing the individual knowledge set into a GraphDB database to form a space-time knowledge graph. Accurate ground object information contained in multi-temporal and large-range remote sensing images is organized and fused, space-time information is described comprehensively and meticulously, and inference rules are introduced to overcome the defects of OWL in inference ability, so that the knowledge graph has stronger inference ability.

Description

Technical field[0001]This article relates to a graphical database, in particular to a graphdb-based time-space knowledge map construction method, device, medium, and equipment.Background technique[0002]In the traditional technology, the object information in the remote sensing image is expressed by the graph database, which can greatly enriched the information information, but the graph database cannot be well reasoning, and the time space information cannot be accurately expressed, and multi-source information cannot be coordinated. The information is perceived with a severe island.Inventive content[0003]To overcome the problems in the related art, this paper provides a graphdb-based time-space knowledge map construction method device, medium, and equipment.[0004]According to one aspect of this article, there is provided a graphdb-based time-space knowledge map construction method, including:[0005]Fusion OGC standard constructs a geographic entity architecture, the geographic entit...

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Application Information

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IPC IPC(8): G06F16/36G06F16/9537G06F16/29G06N5/02G06N5/04
CPCG06F16/367G06F16/9537G06F16/29G06N5/04G06N5/025
Inventor 彭玲陈嘉辉葛星彤李玮超
Owner AEROSPACE INFORMATION RES INST CAS
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