6533b85ffe1ef96bd12c103f

RESEARCH PRODUCT

Advanced RDB-to-RDF/OWL Mapping Facilities in RDB2OWL

Guntars BūmansKārlis ČErāns

subject

Information retrievalDocumentationConceptualizationComputer scienceRelational databaseTable (database)Web Ontology LanguageSpecification languagecomputer.file_formatRDFReusecomputercomputer.programming_language

description

We present advanced features of RDB2OWL mapping specification language that allows expressing RDB-to-RDF/OWL mappings in a concise and human comprehensible way. The RDB2OWL mappings can be regarded as documentation of the database-to-ontology relation. The RDB2OWL language uses the OWL ontology structure as a backbone for mapping specification by placing the database link information into the annotations for ontology classes and properties. Its features include reuse of database table key information, user defined scalar and aggregate functions, table-based functions and multiclass conceptualization that is essential to keep mappings compact in case when large tables are mapped onto several classes on the table field value existence basis.

https://doi.org/10.1007/978-3-642-24511-4_11