A Semantic Matching Method for Geospatial Information Service Composition Based on Context

With the increasing user requirements,the single geospatial information service is hard to satisfy business needs and this promotes the emergence of geospatial information services composition.Finding suitable geospatial service in the Internet for the composition is a crucial task.However,the research of geospatial service composition focuses matching the function of single abstract service,and neglects the effect among service composition.We propose a semantic matching method for geospatial information service composition,which can match services dynamic according to their practical situation of the service composition and the effect among the matching process of each atomic service in the composition service.Then an abstract template of service composition is converted into an actual chain of geospatial information service effectively and accurately,which can execute in the workflow engine.