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Clustering Schema Elements for Semantic Integration of Heterogeneous Data Sources

Clustering Schema Elements for Semantic Integration of Heterogeneous Data Sources

Huimin Zhao, Sudha Ram
Copyright: © 2004 |Volume: 15 |Issue: 4 |Pages: 18
ISSN: 1063-8016|EISSN: 1533-8010|ISSN: 1063-8016|EISBN13: 9781615200566|EISSN: 1533-8010|DOI: 10.4018/jdm.2004100105
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MLA

Zhao, Huimin, and Sudha Ram. "Clustering Schema Elements for Semantic Integration of Heterogeneous Data Sources." JDM vol.15, no.4 2004: pp.89-106. http://doi.org/10.4018/jdm.2004100105

APA

Zhao, H. & Ram, S. (2004). Clustering Schema Elements for Semantic Integration of Heterogeneous Data Sources. Journal of Database Management (JDM), 15(4), 89-106. http://doi.org/10.4018/jdm.2004100105

Chicago

Zhao, Huimin, and Sudha Ram. "Clustering Schema Elements for Semantic Integration of Heterogeneous Data Sources," Journal of Database Management (JDM) 15, no.4: 89-106. http://doi.org/10.4018/jdm.2004100105

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Abstract

Interschema relationship identification (IRI), that is, determining the relationships among schema elements in heterogeneous data sources, is an important step in integrating the data sources. This article proposes a cluster analysis based approach to semi-automating the IRI process, which is typically very time-consuming and requires extensive human interaction. The authors apply multiple clustering techniques, including K-means, hierarchical clustering, and self-organizing map (SOM) neural network, to identify similar schema elements from heterogeneous data sources, based on a combination of features such as naming similarity, document similarity, schema specification, data patterns, and usage patterns. An SOM prototype the authors have developed provides users with a visualization tool for display of clustering results as well as for incremental evaluation of candidate similar elements.

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