RDF-based schema mediation for database grid
RDF-based schema mediation for database grid
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DOI：
10.1109/grid.2004.53
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发表时间：
2004-11
期刊：
影响因子：
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通讯作者：
Huajun Chen;Zhaohui Wu;Guozhou Zheng;Yuxin Mao
中科院分区：
文献类型：
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作者：
Huajun Chen;Zhaohui Wu;Guozhou Zheng;Yuxin Mao
在网格环境中，大量数据库参与共享，数据库工具和中间件必须能够以语义上有意义的方式进行模式中介和查询处理。Dart是一个已实现的原型系统，其目标是为能够在网格设置中部署的数据库资源共享提供语义解决方案。本文特别关注DartGrid中的模式中介问题。我们的方法主要涉及以下概念：a）我们使用RDF/OWL定义的中介本体集成，B）我们设计了一套规则自动转换的关系模式到RDF/OWL描述称为源数据语义，c）我们定义的源数据语义（源模式）作为共享本体（中介模式）的视图，d）查询是制定和提出的共享本体。为实现上述功能，开发了一套网格服务。
In presence of grid where a huge amount of databases can be involved in sharing cycle, database tools and middlewares should be well suited for schema mediation and query processing in a semantically meaningful way. Dart is an implemented prototype system whose goal is to provide a semantic solution for database resource sharing capable of deployment in grid settings. This paper particularly concerns the problems of schema mediation in DartGrid. Our approach mainly involves the following notions: a) we use RDF/OWL to define the mediated ontologies for integration, b) we devise a set of rules for automatically converting the relational schema to RDF/OWL description called source data semantic, c) we define the source data semantic (source schema) as the view of shared ontologies (mediated schema), d) query is formulated and posed on the shared ontologies. A set of grid services is developed for the implementation of above functionalities.