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IEEE Intelligent Systems
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IEEE Intelligent Systems
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DEXA '02 Proceedings of the 13th International Workshop on Database and Expert Systems Applications
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ISWC '02 Proceedings of the First International Semantic Web Conference on The Semantic Web
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Data & Knowledge Engineering - Special issue: Data integration over the Web
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IDEAS '04 Proceedings of the International Database Engineering and Applications Symposium
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IEEE Intelligent Systems
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Proceedings of the 13th International Conference on Information Integration and Web-based Applications and Services
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International Journal of Metadata, Semantics and Ontologies
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We present a data integration approach to enable multi-agency partners to share their agricultural data sources. We perform the integration in three phases. First, a structural integration phase, based on the use of XML documents warehouses (called dataweb), allows to create a warehouse for each partner. A second step consists in the integration of these dataweb by associating an ontology-based knowledge to each warehouse. That is done by a semi-automatic building of OWL ontology starting from dataweb and by re-use of the Agricultural Ontology Service. A third mediation phase permits to query in a uniform manner these different semantic dataweb.