With the explosion of services in grid environment, it＇s necessary to develop a mechanism which has the ability of discovering suitable grid services efficiently. This paper attempts to establish a layered resource m...With the explosion of services in grid environment, it＇s necessary to develop a mechanism which has the ability of discovering suitable grid services efficiently. This paper attempts to establish a layered resource management model based on the locality principle which classifies services into different domains and virtual organizations （VOs） according to their shared purposes. We propose an ontologybased search method applying the ontology theory for characterizing semantic information. In addition, we extend the UD- D1 in querying, storing, and so on. Simulation experiments have shown that our mechanism achieves higher performance in precision, recall and query response time.展开更多
为了提高在多种来源之间发现特定服务的效率,结合信息检索技术提出了针对多源Web服务的服务发现方法,有效地克服了不同Web服务发布方式之间服务发现的障碍,综合管理多种Web服务描述及其语义信息,提供了基于语义的服务查询。在分析相关...为了提高在多种来源之间发现特定服务的效率,结合信息检索技术提出了针对多源Web服务的服务发现方法,有效地克服了不同Web服务发布方式之间服务发现的障碍,综合管理多种Web服务描述及其语义信息,提供了基于语义的服务查询。在分析相关研究不足基础上给出了服务发现框架MWSD(multi-source Web service discovery),并介绍了框架中各模块的作用,说明了不同服务描述之间的映射关系。结果表明:MWSD能够自动获取不同来源,不同描述的Web服务信息,并利用不同描述之间的映射关系建立统一的Web服务资源库,管理Web服务的复杂语义,可用于互联网上开放的Web服务发现。展开更多
基金Supported by the High Technology Research andDevelopment Program of China (2003AA414210) and the NationalNatural Science Foundation of China (60173051)
文摘With the explosion of services in grid environment, it＇s necessary to develop a mechanism which has the ability of discovering suitable grid services efficiently. This paper attempts to establish a layered resource management model based on the locality principle which classifies services into different domains and virtual organizations （VOs） according to their shared purposes. We propose an ontologybased search method applying the ontology theory for characterizing semantic information. In addition, we extend the UD- D1 in querying, storing, and so on. Simulation experiments have shown that our mechanism achieves higher performance in precision, recall and query response time.
文摘为了提高在多种来源之间发现特定服务的效率,结合信息检索技术提出了针对多源Web服务的服务发现方法,有效地克服了不同Web服务发布方式之间服务发现的障碍,综合管理多种Web服务描述及其语义信息,提供了基于语义的服务查询。在分析相关研究不足基础上给出了服务发现框架MWSD(multi-source Web service discovery),并介绍了框架中各模块的作用,说明了不同服务描述之间的映射关系。结果表明:MWSD能够自动获取不同来源,不同描述的Web服务信息,并利用不同描述之间的映射关系建立统一的Web服务资源库,管理Web服务的复杂语义,可用于互联网上开放的Web服务发现。
