一种顾及元素语义关联的复合地理网络及其构建算法  

An elemental semantic association considered composite network model and its building algorithm

作　　者：杨林[1] 余丽[1] 万波[1] 

机构地区：[1]中国地质大学(武汉)信息工程学院/教育部地理信息系统软件及其应用工程研究中心,武汉430074

出　　处：《测绘科学》2013年第6期103-105,122,共4页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(41201385);中央高校基本科研业务费专项资金(CUGL100241);教育部工程研究中心开放基金课题(20111111)

摘　　要：本文根据多模式地理网络中不同模式元素间的复杂语义关联特征,对多模式复合网络模型的语义关系予以扩展,建立了支持元素关联关系的复合网络模型ECCNM,该模型支持多种特征的层次地理网络元素间复杂关联关系的语义表达。同时针对现有几何捏合构建算法过于依赖空间关系的局限性,提出了语义为主几何为辅的混合建网算法,实验表明于千万条要素规模网络中使用混合建网算法,比纯几何建网节约了60%的时间开销,且其拓扑正确性能更好地满足实际应用需求。In the paper, according to the complexity of semantic association features in the geographic multi-modal network, the semantic association was extended and ECCNM was established, which can support the semantic representation of complex association of network element in multi-leveled geographic network. According to the limit of the geometrical snapping model, an approach to mod- eling, semantic as main and geometry as supplementary, was put forward. The experimental results showed that ten million of elements scale networks using this hybrid algorithm could save 60% of the time cost than using a network method of pure geometry, and the topological correctness would better meet the needs of practical application.

关 键 词：复合网络 关联关系 混合建网 多模式 元素语义 

分 类 号：P282[天文地球—地图制图学与地理信息工程] P208[天文地球—测绘科学与技术]