基于XML和RDF的异构空间信息共享模型

A model for heterogeneous spatial information sharing based on XML and RDF

分析网上空间信息的异构性及共享解决方案,提出了一种新的基于XML和RDF的异构空间信息共享模型.采用了XML,RDF技术解决空间信息的语法和语义异构问题,设计了空间信息表示分级共识矩阵,将信息异构分解到各个表示级别以简化信息转换,在每一级别又提取空间信息领域的共识来表示信息以促进应用程序对信息的正确理解和语义互操作.实例证明了该模型能有效解决异构空间信息的表示和交换问题,满足用户空间信息共享的需要.

A new model for heterogeneous spatial in formation sharing based on XML and RDF is brought forward through analyzing the heterogeneity and sharing solutions on net-work spatial information. Extensible Markup Language （XML） and Resurce Description Frame（RDF） techniques are adopted to solve the problem of grammar and semantic hetero-geneity, and a spatial information expression matrix based on grade and consensus is designed, in which the information on heterogeneity is divided into every expression grade to simplify information exchange. Moreover, consensus of spatial information field in every grade is extracted to express information, in order to promote correct understanding and semantic interoperation of applications. That model can effectively solve the problem of heter-ogeneous spatial information expression and exchange and meet the requirements of spatial information sharing of users, which are proved by practice.