基于Oracle语义城市地图分类信息智能查询

面对万维网日益增长的地图信息查询需求,利用对行政区划、地理要素分类及用户添加等地理要素的语义信息进行辅助地图分类查询。根据相关的标准建立了中国行政区划本体和基础地理要素分类本体,将这两个本体存储到Oracle语义库中,采用SPAQEL完成语义信息查询,以提高地理要素检索的智能性。最后,通过建立的原型系统进行查询试验,验证了语义信息辅助地图分类查询可以提高信息检索的查全率和查准率。

Intelligent Query of Classified Information on City Map with Oracle Semantic

Facing the growing demand of map information inquiry in World Wide Web,how to use geographic features semantic information including both china administrative divisions semantics and the geographic feature classification semantics and more semantic information the users add to improve map classification query is explored.According to the relevant standards,a hierarchical ontology of China administrative divisions and classification ontology of basic geographic features are established.They are stored into Oracle semantic database,and SPARQL is used to complete semantic information inquiry to improve the geographic features intelligent retrieve.A prototype system is completed to verify the feasibility and effectiveness of using semantic information to improve information retrieval recall rate and precision.