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Lecture Notes in Computer Science
In the last years ontologies have been applied increasingly as a conceptual view facilitating the federation of numerous data sources using different access methods and data schemes. Approaches such as ontology-based data integration (OBDI) are aimed at this purpose. According to these approaches, queries formulated in an ontology describing the knowledge domain as a whole are translated into queries formulated in vocabularies of integrated data sources. In such integrative environments thedoi:10.1007/978-3-319-11113-1_17 fatcat:g2bnxbi7bnhazev6dmcxqhzfta