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数据库元数据的自动语义标注 被引量:3

Automatic Semantic Annotation for Metadata in Databases
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摘要 语义异构是异构数据库信息集成中要解决的关键问题。为了使关系数据库的表和字段具有语义信息,将数据库元数据自动标注成语义元数据成为研究的热点。基于概念名和概念结构的语义相似度计算,提出了一种数据库元数据自动语义标注方法。首先从关系数据库的元数据中提取隐含的语义信息,并据此创建领域本体,然后通过计算元数据与本体实体间的语义相似度对提取的元数据进行自动语义标注,提出的相似度算法综合考虑了概念名称和结构的相似性,并采取了必要的优化措施进行改进。经实验测试证明,该方法具有较高的标注正确率,是一种行之有效的语义标注方法。 语义异构是异构数据库信息集成中要解决的关键问题。为了使关系数据库的表和字段具有语义信息,将数据库元数据自动标注成语义元数据成为研究的热点。基于概念名和概念结构的语义相似度计算,提出了一种数据库元数据自动语义标注方法。首先从关系数据库的元数据中提取隐含的语义信息,并据此创建领域本体,然后通过计算元数据与本体实体间的语义相似度对提取的元数据进行自动语义标注,提出的相似度算法综合考虑了概念名称和结构的相似性,并采取了必要的优化措施进行改进。经实验测试证明,该方法具有较高的标注正确率,是一种行之有效的语义标注方法。
出处 《计算机科学》 CSCD 北大核心 2012年第S3期159-162,共4页 Computer Science
关键词 语义标注 元数据 本体 数据库 Semantic annotation Metadata Ontology Database
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参考文献14

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二级参考文献22

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共引文献24

同被引文献27

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