MEDIATION WITHOUT A GLOBAL SCHEMA - Matching Queries and Local Schemas Through an Ontology

Michel Schneider, Damien Thevenet

2006

Abstract

Approaches by mediation to make multiple sources interoperable were essentially investigated when one are able to resolve a priori the heterogeneity problems. This requires that a global schema must be elaborated or that mappings between local schemas must be established before any request can be posed. The object of this paper is to study to what extend a mediation approach can be envisaged when none of these features are a priori available. Our solution consists in matching a query with each of the local schema by using an ontology of the domain. Such a solution is particularly suitable when sources are liable to evolve all the time. We are investigating this solution by considering the mediation of heterogeneous XML sources. Local schemas are represented in the OWL language. Queries are formulated using an XQUERY-like language. Matching of names is solved by using the an ontology of the domain. We have developed a prototype and conducted a number of experiments to evaluate the capacity of the approach.

Paper Citation

in Harvard Style

Schneider M. and Thevenet D. (2006). MEDIATION WITHOUT A GLOBAL SCHEMA - Matching Queries and Local Schemas Through an Ontology . In Proceedings of WEBIST 2006 - Second International Conference on Web Information Systems and Technologies - Volume 1: WEBIST, ISBN 978-972-8865-46-7, pages 5-12. DOI: 10.5220/0001249700050012

in Bibtex Style

@conference{webist06,
author={Michel Schneider and Damien Thevenet},
title={MEDIATION WITHOUT A GLOBAL SCHEMA - Matching Queries and Local Schemas Through an Ontology},
booktitle={Proceedings of WEBIST 2006 - Second International Conference on Web Information Systems and Technologies - Volume 1: WEBIST,},
year={2006},
pages={5-12},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001249700050012},
isbn={978-972-8865-46-7},
}

in EndNote Style

TY - CONF
JO - Proceedings of WEBIST 2006 - Second International Conference on Web Information Systems and Technologies - Volume 1: WEBIST,
TI - MEDIATION WITHOUT A GLOBAL SCHEMA - Matching Queries and Local Schemas Through an Ontology
SN - 978-972-8865-46-7
AU - Schneider M.
AU - Thevenet D.
PY - 2006
SP - 5
EP - 12
DO - 10.5220/0001249700050012