Geographical knowledge graph construction method and device, storage medium and computer equipment
A knowledge graph and construction method technology, applied in geographic information database, semantic tool creation, structured data retrieval, etc., can solve the problems of low efficiency of geographic knowledge graph, difficulty in ensuring the accuracy of the graph, large manpower and time cost, etc.
Active Publication Date: 2020-08-04
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE +1
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However, it is difficult to guarantee the accuracy of the map by automatically constructing the geographic knowledge graph through machine learning, and it takes a huge amount of manpower and time to construct the geographic knowledge graph manually, resulting in low efficiency and poor accuracy in constructing the geographic knowledge graph.
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[0057] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0058] As described in the background, at present, the geographic knowledge graph is usually constructed automatically through machine learning, or the geographic knowledge graph is constructed manually. However, it is difficult to guarantee the accuracy of the map through the automatic construction of geographic knowledge graphs through machine learning, and the manual construction of geographic knowledge graphs requires huge manpo...
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The invention discloses a geographic knowledge graph construction method and device, a storage medium and computer equipment, relates to the technical field of knowledge graphs, and mainly aims to generate a seed set through an algorithm, reconstruct the seed set in combination with an ontology framework formulated by domain experts and expand the seed set by utilizing knowledge entities extractedfrom literatures so as to construct a geographic knowledge graph. Therefore, on one hand, the construction accuracy of the geographic knowledge graph can be improved, and on the other hand, the construction efficiency of the geographic knowledge graph can be improved. The method comprises the following steps: processing an acquired thesaurus through a pre-trained joint model to generate a geographic knowledge graph seed set; reconstructing an ontology layer of the seed set according to a preset ontology framework; expanding the seed set by utilizing knowledge entities extracted from the obtained literature information; and constructing a geographic knowledge graph according to the expanded seed set. The method and device are suitable for construction of the geographic knowledge map.
Description
technical field [0001] The present invention relates to the technical field of knowledge graphs, in particular to a method, device, storage medium and computer equipment for constructing geographic knowledge graphs. Background technique [0002] At present, my country's basic geographic information database system is developing rapidly. Basic geographic data services and information services have multiple scales, rich content, and timely updates. They have played an important role in national information construction and social applications. As an instantiated embodiment of geographic information data, geographic knowledge graphs can clearly show users recommended knowledge in which fields and areas the data is applied to support their planning, management, and decision-making. [0003] At present, the geographic knowledge graph is usually constructed automatically through machine learning, or the geographic knowledge graph is constructed manually. However, it is difficult ...
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IPC IPC(8): G06F16/36G06F16/29
CPCG06F16/367G06F16/29
Inventor 尹川杜明义朱宇琪刘万增翟曦
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE