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中文摘要：
提出了一种顾及上下文的空间信息服务组合语义匹配方法。该方法根据空间信息服务组合的特点,充分考虑了空间信息组合服务对内部抽象原子服务匹配的约束,以及匹配过程中各抽象原子服务上下文之间的相互影响,应用回溯算法思想准确有效地将抽象的空间信息服务组合模型转换为工作流引擎可执行的空间信息服务链。
英文摘要：
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.
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