DartGrid: Semantic-Based Database Grid
DartGrid: Semantic-Based Database Grid
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DOI：
10.1007/978-3-540-24685-5_8
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发表时间：
2004-06
期刊：
影响因子：
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通讯作者：
Zhaohui Wu;Huajun Chen;Changhuang Changhuang-Changhuang;Guozhou Zheng;Jiefeng Xu
中科院分区：
文献类型：
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作者：
Zhaohui Wu;Huajun Chen;Changhuang Changhuang-Changhuang;Guozhou Zheng;Jiefeng Xu
在Web的存在下，一个关键的挑战是如何在全球范围内发布、无缝集成和透明地定位地理上分布的数据库资源。提出了一种基于语义的方法，以网格为平台支持数据库资源的全局共享。我们构建了一个语义查询系统DartGrid，其特点如下：a)将数据库提供者组织成一个基于本体的虚拟组织；通过统一定义的领域语义，可以对数据库进行语义注册并无缝集成在一起提供数据库服务；b)我们将与数据库系统的交互级别提高到领域认知模型，其中查询请求用领域术语和领域知识来描述(S)，使得用户只能在语义或知识级别上发布、发现、查询数据库。探讨了数据语义的本质和基础作用，实现了语义浏览、语义查询、语义注册等语义创新功能。我们还报告了需要数据密集型协作的传统中医药的应用结果。
In presence of web, one critical challenge is how to globally publish, seamlessly integrate and transparently locate geographically distributed database resources with such “open” settings. This paper proposes a semantic-based approach supporting the global sharing of database resources using grid as the platform. We have built a semantic query system, called DartGrid, with the following features: a) database providers are organized as an ontology-based virtual organization; by uniformly defined domain semantics, database could be semantically registered and seamlessly integrated together to provide database service, and b)we raise the level of interaction with the data base system to a domain-cognizant model in which query request are specified in the terminology and knowledge of the domain(s), which enable the users to publish, discovery ,query databases only at a semantic or knowledge level. We explore the essential and fundamental roles played by data semantics, and implement some innovative semantic functionalities such as semantic browse, semantic query and semantic registration. We also reports on application results from Traditional Chinese Medicine (TCM) that requires data-intensive collaboration.