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Authors: Sonia Bergamaschi 1 ; Mirko Orsini 1 ; Francesco Guerra 1 and Claudio Sartori 2

Affiliations: 1 Università di Modena e Reggio Emilia, Italy ; 2 Università di Bologna, Italy

ISBN: 978-972-8865-88-7

Keyword(s): Metadata, querying, data integration, data mining.

Related Ontology Subjects/Areas/Topics: Coupling and Integrating Heterogeneous Data Sources ; Databases and Information Systems Integration ; Enterprise Information Systems

Abstract: Research on data integration has provided languages and systems able to guarantee an integrated intentional representation of a given set of data sources. A significant limitation common to most proposals is that only intentional knowledge is considered, with little or no consideration for extensional knowledge. In this paper we propose a technique to enrich the intension of an attribute with a new sort of metadata: the “relevant values”, extracted from the attribute values. Relevant values enrich schemata with domain knowledge; moreover they can be exploited by a user in the interactive process of creating/refining a query. The technique, fully implemented in a prototype, is automatic, independent of the attribute domain and it is based on data mining clustering techniques and emerging semantics from data values. It is parameterized with various metrics for similarity measures and is a viable tool for dealing with frequently changing sources, as in the Semantic Web context.

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Paper citation in several formats:
Bergamaschi S.; Orsini M.; Guerra F.; Sartori C. and (2007). RELEVANT VALUES: NEW METADATA TO PROVIDE INSIGHT ON ATTRIBUTE VALUES AT SCHEMA LEVEL.In Proceedings of the Ninth International Conference on Enterprise Information Systems - Volume 3: ICEIS, ISBN 978-972-8865-88-7, pages 274-279. DOI: 10.5220/0002376202740279

@conference{iceis07,
author={Sonia Bergamaschi and Mirko Orsini and Francesco Guerra and Claudio Sartori},
title={RELEVANT VALUES: NEW METADATA TO PROVIDE INSIGHT ON ATTRIBUTE VALUES AT SCHEMA LEVEL},
booktitle={Proceedings of the Ninth International Conference on Enterprise Information Systems - Volume 3: ICEIS,},
year={2007},
pages={274-279},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002376202740279},
isbn={978-972-8865-88-7},
}

TY - CONF

JO - Proceedings of the Ninth International Conference on Enterprise Information Systems - Volume 3: ICEIS,
TI - RELEVANT VALUES: NEW METADATA TO PROVIDE INSIGHT ON ATTRIBUTE VALUES AT SCHEMA LEVEL
SN - 978-972-8865-88-7
AU - Bergamaschi, S.
AU - Orsini, M.
AU - Guerra, F.
AU - Sartori, C.
PY - 2007
SP - 274
EP - 279
DO - 10.5220/0002376202740279

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