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DOI:
Journal of Software:2007.18(10):2495-2506

基于本体的异构信息集成查询划分及转换
李剑,宋靖宇,钟华
(中国科学院,软件研究所,软件工程技术研究开发中心,北京,100080)
Ontology-Based Query Division and Reformulation for Heterogeneous Information Integration
LI Jian,SONG Jing-Yu,ZHONG Hua
()
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Received:April 26, 2006    Revised:April 26, 2006
> 中文摘要: 使用本体赋予信息语义能够帮助用户准确查询所需要的信息.基于本体的异构信息集成中的关键问题是如何实现全局本体概念实例查询到局域信息数据查询的变换.提出了一种本体概念实例查询的操作表示,并基于这一查询操作表示给出了将全局查询划分为局域查询的方法,局域查询结果经过集成和转换后以统一的形式返回给用户.使用该方法来查询所集成的数据来源,可以获取用户所需要的正确查询结果.
Abstract:People can obtain information from heterogeneous data resources by semantic querying based on ontology. The difficult problem is how to reformulate a global query into multiple sub-queries over those local data bases. This paper presents a kind of uniform expression for queries of concept instances and a method in dividing the query expression into the local ones. All local query results can be integrated for the users’ purposes. Using these methods to query integrated data resources,users can get right results they desire.
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基金项目:Supported by the National High-Tech Research and Development Plan of China under Grant No.2004AA112010 (国家高技术研究发展计划(863)); the National Basic Research Program of China under Grant No.2002CB312005 (国家重点基础研究发展计划(973)) Supported by the National High-Tech Research and Development Plan of China under Grant No.2004AA112010 (国家高技术研究发展计划(863)); the National Basic Research Program of China under Grant No.2002CB312005 (国家重点基础研究发展计划(973))
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李剑,宋靖宇,钟华.基于本体的异构信息集成查询划分及转换.软件学报,2007,18(10):2495-2506

LI Jian,SONG Jing-Yu,ZHONG Hua.Ontology-Based Query Division and Reformulation for Heterogeneous Information Integration.Journal of Software,2007,18(10):2495-2506