【摘要】 语义网格所需要处理的信息通常为半结构化数据,如何以合理的模型表示这些半结构化数据并实现高效查询处理,是语义网格要解决的核心问题之一。提出了一种基于资源描述框架(RDF)的半结构化数据表示模型,并设计了相应的信息检索机制。最后介绍了一个基于化工计算网格平台的,实现了化工领域知识共享与检索的化工语义网格架构的设计与实现。更多还原

【Abstract】 The data processed by semantic grid are often semi-structured data.Therefore,how to model and retrieve these semi-structured data is a key issue of semantic Web.The presenting model for semi-structured data base Resource Description Framework(RDF) and its information retrieval mechanism were proposed in this paper.Then a semantic grid infrastructure was described,which implemented knowledge sharing and retrieval in chemical engineering domain based on a chemical computing grid platform.更多还原