测绘通报 ›› 2023, Vol. 0 ›› Issue (2): 161-166.doi: 10.13474/j.cnki.11-2246.2023.0058

• 技术交流 • 上一篇    下一篇

顾及结构特征的河系匹配方法研究

金诗程1,2, 张青年3, 淳锦1,2, 杨娜娜1,2   

  1. 1. 广东省国土资源测绘院, 广东 广州 510700;
    2. 自然资源部华南热带亚热带自然资源监测重点 实验室, 广东 广州 510700;
    3. 中山大学地理科学与规划学院, 广东 广州 510006
  • 收稿日期:2022-03-15 修回日期:2023-01-03 发布日期:2023-03-01
  • 通讯作者: 张青年。E-mail:zhanggiszsu@163.com
  • 作者简介:金诗程(1995-),男,硕士,工程师,主要从事GIS理论及应用、自然资源调查监测等研究工作。E-mail:jinshichengcug@126.com
  • 基金资助:
    广东省自然资源科技协同创新中心项目(2018B02027002)

Research on river system matching method considering structural features

JIN Shicheng1,2, ZHANG Qingnian3, CHUN Jin1,2, YANG Nana1,2   

  1. 1. Surveying and Mapping Institute Lands and Resource Department of Guangdong Province, Guangzhou 510700, China;
    2. Key Laboratory of Natural Resources Monitoring in Tropical and Subtropical Area of South China, Ministry of Natural Resources, Guangzhou 510700, China;
    3. School of Geography and Planning, Sun Yat-Sen University, Guangzhou 510006, China
  • Received:2022-03-15 Revised:2023-01-03 Published:2023-03-01

摘要: 河流水系是一种地理空间基础框架数据,提供了地理空间要素的空间结构。在对空间数据库中的地理数据进行更新与集成处理时,不可避免地涉及河系的匹配和更新处理。本文在分析河系结构特征的基础上,研究了河系匹配方法,并提出了:①河系匹配的两层次框架;②河系之间的匹配方法;③顾及等级结构的河流匹配算法。试验结果证明:顾及等级结构的匹配算法能在一定程度上降低误匹配和漏匹配的数量,总体匹配效果要优于一般的匹配算法,特别是在支流数量多、支流长度较短、河流详略程度差距大的河系匹配中,优势更明显。

关键词: 河系, 同名实体匹配, 河系结构, 河流等级, 空间相似性

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

中图分类号: