In: Computing and Informatics, vol. 31, no. 1
Antoni Myłka - Alina Myłka - B. Kryza - J. Kitowski
Rok, strany: 2012, 189 - 223
Data management, data integration, semantics, ontologies, conversion, RDF, integrity constraints, semantic optimization, SPARQL
In this paper we present X2R, a system for integrating heterogeneous data sources in an ontological knowledge base. The main goal of the system is to create a unified view of information stored in relational, XML and LDAP data sources within an organization, expressed in RDF using a common ontology and valid according to a prescribed set of integrity constraints. X2R supports a wide range of source schemas and target ontologies by allowing the user to define potentially complex transformations of data between the original data source and the unified knowledge base. A rich set of integrity constraint primitives has been provided to ensure the quality of the unified data set. They are also leveraged in a novel approach towards semantic optimization of SPARQL queries.
Myłka, A., Myłka, A., Kryza, B., Kitowski, J. 2012. Integration of Heterogeneous Data Sources in an Ontological Knowledge Base. In Computing and Informatics, vol. 31, no.1, pp. 189-223. 1335-9150.
Myłka, A., Myłka, A., Kryza, B., Kitowski, J. (2012). Integration of Heterogeneous Data Sources in an Ontological Knowledge Base. Computing and Informatics, 31(1), 189-223. 1335-9150.