Research on river system matching method considering structural features

doi:10.13474/j.cnki.11-2246.2023.0058

Abstract

Abstract: As a geospatial framework data in the spatial database, the river system provides the spatial structure of geospatial features. When updating and integrating geographic features in the spatial databases, it is evitable to match and update river data.Based on the analysis of the characteristics of the river system structure, this paper studies the river system matching method.And put forward: ① Two-level framework of river system matching. ② River system matching method. ③ A river matching algorithm that takes into account the hierarchical structure.The experimental results show that the matching algorithm that takes into account the hierarchical structure can reduce the number of false matches and missed matches to a certain extent, and the overall matching effect is better than the general matching algorithm.Especially in the matching of river systems with a large number of tributaries, short tributary lengths, and large gaps in river detail,the advantage is more obvious.

Key words: river system network, identical entity matching, river system structure, river hierarchy, spatial similarity

CLC Number:

P208

JIN Shicheng, ZHANG Qingnian, CHUN Jin, YANG Nana. Research on river system matching method considering structural features[J]. Bulletin of Surveying and Mapping, 2023, 0(2): 161-166.

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