Complex Correspondences And Functions In Schema Mappings: An Introduction, Analysis And Implementation Approach For Semi-Automatic Detection
Arnold, Patrick; Arnold, Patrick
ISBN 10: 3639479335 ISBN 13: 9783639479331
Published by Av Akademikerverlag, 2013
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160 pages. 8.66x5.91x0.37 inches. In Stock. Seller Inventory # 3639479335
Synopsis:
Schema and Ontology Mapping play a crucial role whenever heterogeneous data sources are to be integrated or merged. There are already countless matching tools that semi-automatically calculate the correspondences between elements of diverse database schemas, however, there is hardly any solution that could discover many-to-one correspondences (complex correspondences) or transformation functions, which are inevitable prerequisites for precise schema mapping and accurate data transformation. In this study, we give a profound introduction in complex correspondences and transformation functions as part of schema mappings. Starting from theoretic aspects, use cases and examples, we reveal the shortcomings of today's schema and ontology mapping tools, and subsequently present versatile strategies how complex correspondences and transformation functions can be semi-automatically discovered in a given schema or ontology mapping, thus considerably reducing the manual effort of mapping post-processing. We finally explain how we integrated the approach in our schema and ontology matcher COMA++ and evaluate it w.r.t. to time complexity and precision. Among others, we could demonstrate that the obvious neglect of complex correspondence and function detection, both in academic research and industry, is by no means justified, and that there are decent strategies to actually cope with it.
About the Author: Patrick Arnold studied computer science in Leipzig and achieved his Master's degree in October 2011. He is now a PhD student at Leipzig University, database department, and works in the field of data integration, where he focuses particularly on the semantic enrichment and post-processing of schema and ontology mappings.
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Bibliographic Details
Title: Complex Correspondences And Functions In ...
Publisher: Av Akademikerverlag
Publication Date: 2013
Binding: Paperback
Condition: Brand New