为提高网格服务动态组合过程中服务间的匹配概率,提出了基于语义推理、相似度计算和图搜索的弱关联程度下的服务组合方法(Low Match Degree Service Composition Method,LMDSCM)。LMDSCM通过定义基于领域本体的概念集合匹配度作为服务...为提高网格服务动态组合过程中服务间的匹配概率,提出了基于语义推理、相似度计算和图搜索的弱关联程度下的服务组合方法(Low Match Degree Service Composition Method,LMDSCM)。LMDSCM通过定义基于领域本体的概念集合匹配度作为服务匹配度计算的依据,来完成服务组合图的构建,并将服务组合的优化选择问题转换为最短路径选择问题。通过实验将LMDSCM与同类方法在服务组合满意度和算法效率上进行了对比,结果证明其在弱关联程度条件下的服务组合满意度高于同类算法,易于生成最优服务组合方案。展开更多
基于网格的决策支持系统(Grid based decision support system,GBDSS)的决策服务组合建模既要考虑领域内特定决策问题的过程建模,又要考虑所采用的方法的可行性和效率.提出了基于模型驱动架构(Model driven architecture,MDA)的GBDSS决...基于网格的决策支持系统(Grid based decision support system,GBDSS)的决策服务组合建模既要考虑领域内特定决策问题的过程建模,又要考虑所采用的方法的可行性和效率.提出了基于模型驱动架构(Model driven architecture,MDA)的GBDSS决策服务组合技术架构及其平台层次模型,论述了模型中各模块的运作机理,分析了其建模协议簇的层次结构.该模型通过平台无关模型(Platform independent model,PIM)到平台具体模型(Platform specific model,PSM)的转换实现GBDSS决策服务组合过程中抽象决策过程建模与实际组合决策服务执行之间的分离及动态映射,增强了GBDSS决策服务组合的自动化程度,提高了GBDSS解决复杂问题的能力.展开更多
1 Introduction The World Wide Web is a major breakthrough in the history of human communication and information sharing (Bemers-Lee et al.,2006).The Web has brought us a series of revolutionary tools,such as digital l...1 Introduction The World Wide Web is a major breakthrough in the history of human communication and information sharing (Bemers-Lee et al.,2006).The Web has brought us a series of revolutionary tools,such as digital libraries,net meetings,e-mails,and data services,which have changed the face of scientific research and publishing.Scientists are increasingly relying on these tools to conduct their daily research,and to collaborate with their colleagues through distant communication and knowledge sharing.Despite all these accomplishments,there are still gaps between what can be done using the current Web and what need to be done in an e-Science environment (Buetow,2005).展开更多
文摘为提高网格服务动态组合过程中服务间的匹配概率,提出了基于语义推理、相似度计算和图搜索的弱关联程度下的服务组合方法(Low Match Degree Service Composition Method,LMDSCM)。LMDSCM通过定义基于领域本体的概念集合匹配度作为服务匹配度计算的依据,来完成服务组合图的构建,并将服务组合的优化选择问题转换为最短路径选择问题。通过实验将LMDSCM与同类方法在服务组合满意度和算法效率上进行了对比,结果证明其在弱关联程度条件下的服务组合满意度高于同类算法,易于生成最优服务组合方案。
文摘基于网格的决策支持系统(Grid based decision support system,GBDSS)的决策服务组合建模既要考虑领域内特定决策问题的过程建模,又要考虑所采用的方法的可行性和效率.提出了基于模型驱动架构(Model driven architecture,MDA)的GBDSS决策服务组合技术架构及其平台层次模型,论述了模型中各模块的运作机理,分析了其建模协议簇的层次结构.该模型通过平台无关模型(Platform independent model,PIM)到平台具体模型(Platform specific model,PSM)的转换实现GBDSS决策服务组合过程中抽象决策过程建模与实际组合决策服务执行之间的分离及动态映射,增强了GBDSS决策服务组合的自动化程度,提高了GBDSS解决复杂问题的能力.
文摘1 Introduction The World Wide Web is a major breakthrough in the history of human communication and information sharing (Bemers-Lee et al.,2006).The Web has brought us a series of revolutionary tools,such as digital libraries,net meetings,e-mails,and data services,which have changed the face of scientific research and publishing.Scientists are increasingly relying on these tools to conduct their daily research,and to collaborate with their colleagues through distant communication and knowledge sharing.Despite all these accomplishments,there are still gaps between what can be done using the current Web and what need to be done in an e-Science environment (Buetow,2005).
