arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.07703cs.DB
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Is your Schema Good Enough to Answer my Query?

Yuanwei Zhao, Lan Huang, Bo Wang, Dongxu Zhang, Simone Bocca, Fausto Giunchiglia, Rui Zhang

摘要:

基于本体的数据集成已成为异构遗留数据库集成服务构建的实用方法之一。然而,这是既不有效,也不经济的跨领域本体构建在每个遗留数据库的模式为特定的集成应用程序比重用现有的本体。那么问题就在于现有的本体是否与跨域查询以及与所有遗留系统兼容。由于兼容性限制了集成服务的上行质量,因此迫切需要一个有效的标准来评估兼容性。本文从属性的角度研究了模式的语义相似性。它提供了一组深入的标准,即覆盖率和灵活性,以评估查询,模式和现有本体之间的兼容性。扩展了类的权值,使相容性计算更加精确.该准则在实际工程中的应用验证了该方法的适用性。

英文摘要:

Ontology-based data integration has been one of the practical methodologies for heterogeneous legacy database integrated service construction. However, it is neither efficient nor economical to build the cross-domain ontology on top of the schemas of each legacy database for the specific integration application than to reuse the existed ontologies. Then the question lies in whether the existed ontology is compatible with the cross-domain queries and with all the legacy systems. It is highly needed an effective criteria to evaluate the compatibility as it limits the upbound quality of the integrated services. This paper studies the semantic similarity of schemas from the aspect of properties. It provides a set of in-depth criteria, namely coverage and flexibility to evaluate the compatibility among the queries, the schemas and the existing ontology. The weights of classes are extended to make precise compatibility computation. The use of such criteria in the practical project verifies the applicability of our method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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