【摘要】 网格中的资源发现是网格研究的重要问题,是网格资源管理中的基本组成部分。它主要研究教育资源网格中的资源发现,使得资源发现更加快速准确。介绍了国家《基础教育教学资源元数据规范》,并给出了某资源的元数据描述;提出了基于小世界原理的教育资源网格的系统架构,分析了不同节点的加入/离开协议;最后通过实验表明,引入小世界原理的系统架构比普通架构拥有更准确的资源查询率和更低的查询成本。更多还原

【Abstract】 Grid resource discovery is a most important problem in grid research and a basic part of grid resource management. It mainly focuses on education resource discovery, making discovery more quickly and more exact.First, Metadata specification of china base education resource is presented and the representation of a resource is given as an example; Secondly, the architecture of education re- source grid based on the small-world theory is introduced and the enter/leave protocol is analysed; Last it proves that the architecture adop- ting the small-world theory has lower query costs and more exact query efficiency by experiments.更多还原