A Framework for Ontology-Based Top-K Global Schema Generation
A Framework for Ontology-Based Top-K Global Schema Generation
复制标题
基于本体的 Top-K 全局模式生成框架
DOI:
10.1007/s13740-016-0075-2
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发表时间:
2017-03
影响因子:
--
通讯作者:
Feng Tian
中科院分区:
文献类型:
--
作者:
Longzhuang Li;Yuzhe Wei;Feng Tian
Global schema generation is the problem of generating a unified and merged schema based on existing heterogeneous local schemas and a set of correspondences which are generated by a schema-matching algorithm. The existing schema integration approaches only target the flat schema structure, but cannot handle hierarchical schema structure well, and may produce redundant information in the global schema due to the weak entities in local schemas. To deal with these kinds of problems, a framework for ontology-based top-kglobal schema generation is proposed in this paper. The framework employs ontology as a base-merging model to create the global schema with higher quality but less user involvement, because ontology can provide semantic and detailed constraints and develop ways to preserve the hierarchical structure and remove redundant entities. The proposed approach consists of three contiguous steps: (1) local schemas are converted to local ontologies; (2) local ontologies are merged and top-kglobal ontologies are generated; (3) the user chooses one merged global ontology, which is converted automatically back to the global schema. After comparing the proposed approach with an existing state-of-the-art schema integration approach, the proposed approach better preserves the hierarchical structure and removes the redundant information. As a result, the quality of the generated global schema is higher.
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DOI:
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发表时间:
2000-07
期刊:
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作者:
Natasha Noy;M. Musen
通讯作者:
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2011
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作者:
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通讯作者:
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10.1145/1559845.1559913
发表时间:
2009-06
期刊:
Proceedings of the 2009 ACM SIGMOD International Conference on Management of data
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作者:
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通讯作者:
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2008-10
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通讯作者:
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2007
期刊:
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作者:
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通讯作者:
J. Euzenat;Malgorzata Mochól;P. Shvaiko;H. Stuckenschmidt;Ondřej Šváb;V. Svátek;W. V. Hage;Mikalai Yatskevi