摘要
针对航海图海底地貌制图综合中的知识模型化不够充分,导致知识服务不够具体、质量评估不够精准的问题,构建了面向该任务的知识图谱。首先,从航海图海底地貌制图表达的原则与需求出发,设计了图谱化表达海底地貌制图综合知识的概念层次;而后,从多源异构的水深、等深线、底质专题数据中抽取并整合海底地貌制图综合知识;然后,通过图谱上的知识推理,获取新知识并完善现有的知识,进而构建模型化表达海底地貌制图综合规则的知识图谱;最后,进行了海底地貌制图综合知识图谱的构建试验,并在典型综合场景中对图谱的应用效果进行了验证。试验结果表明,与传统方法相比,所构建的知识图谱能够体系化地整合制图综合知识,为海底地貌制图综合提供更加具体的知识服务以及更加精确的质量评价,从而为海底地貌制图综合作业的进一步规范化提供了新思路。
The current knowledge system of submarine geomorphology generalization in nautical charts is insufficient modeling,which can easily lead to vague knowledge services and imprecise quality evaluations.To address these problems,the knowledge graph for submarine geomorphology generalization in nautical charts is constructed.Firstly,based on the principles and requirements of cartographic generalization,a conceptual hierarchy for representing the knowledge of submarine geomorphology generalization is designed.Subsequently,knowledge concerning submarine geomorphology generalization is extracted and integrated from various sources of data,including sounding data,depth contour data,and bottom thematic data.Then,through knowledge reasoning on the graph,new knowledge is obtained,and existing knowledge is enhanced.By following the above steps,a knowledge graph modeling the knowledge of submarine geomorphology generalization can be constructed.Finally,a knowledge graph for submarine geomorphology generalization is constructed as an experimental example,and the application performance of the graph is verified in typical generalization situations.The experimental results show that,compared to traditional methods,the knowledge graph can systematically integrate the knowledge of submarine geomorphology generalization,thereby providing more specific knowledge services and more accurate quality evaluations to submarine geomorphology generalization.This study provides new ideas for further standardizing submarine geomorphology generalization in nautical cartography.
作者
贾帅东
宋子康
林海峰
刘现鹏
张立华
JIA Shuaidong;SONG Zikang;LIN Haifeng;LIU Xianpeng;ZHANG Lihua(Department of Military Oceanography and Hydrography&Cartography,Dalian Naval Academy,Dalian 116018,China;Key Laboratory of Hydrographic Surveying and Mapping of PLA,Dalian Naval Academy,Dalian 116018,China;Chart Information Center,Tianjin 300450,China)
出处
《测绘科学技术学报》
2025年第5期527-534,共8页
Journal of Geomatics Science and Technology
基金
国家自然科学基金项目(41901320,42071439)。
关键词
海图制图
海底地貌制图综合
知识图谱
知识推理
知识表达
nautical cartography
submarine topographic generalization
knowledge graph
knowledge reasoning
knowledge representation
