基于本体和Agent的地理空间信息语义共享

地理空间信息语义共享是地理信息系统的重要研究内容。语义参照系统主要用于在地理信息的生产者和用户之间解释专题数据的意义，实现对不同语义数据的集成。本文分析了地理空间信息共享的含义和层次，借鉴语义网研究思想，建立了地理空间信息语义共享的总体框架。提出采用本体概念和方法，形式化定义领域知识，解决地理空间信息研究和应用中存在的地理实体语义不明确问题。采用基于Agent的信息查询和语义映射，实现在不同用户间对地理空间信息的共同理解和认识。

Geo-spatial Information Semantic Share on Base of Ontology and Agent

The semantic share of geo-spatial information is the important content of the research of Geographical Information System. The semantic reference systems will enable producers and users of geographical information to explain the meaniag of thematic data and to integrate data across differing semantics. The authors discuss the connotation and layers of geo-spatial information share, make use of research thought of Semantic Web and present the research framework of geo-spatial information share. In order to solve the anlbiguous meaning of geo-spatial information research and application, the ontology concept and method are adopted and domain knowledge are defined formally. Furthermore, the authors discuss how to support the semantic information share and inter-operation among kinds of users, present to query information and sermantic mapping on the basis of agents to solve the different comprehend among geographical information communities and achieve the eomnton meaning and realization of information,