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The SPARQL2XQuery Framework : Bridging the Gap between the XML and the Semantic Web Worlds[edit]

The SPARQL2XQuery Framework bridges the gap and creates an interoperable environment between the Web of Linked Data (OWL/RDF/SPARQL) and the XML (XML Schema/XML/XQuery) worlds.
Using the SPARQL2XQuery Framework, XML datasets can be turned into SPARQL endpoints. The SPARQL2XQuery Framework provides a generic method for SPARQL to XQuery translation, with respect to a set of predefined mappings between ontologies and XML Schemas.
Particularly, the SPARQL2XQuery Framework provides mechanisms for: (a) Query translation (SPARQL to XQuery) (b) Mapping specification & generation (Ontology to XML Schema)and (c) Schema transformation(XML Schema to OWL).

Key Features.[edit]

This SPARQL2XQuery Framework is an essential component in the Web of Linked Data that allows setting SPARQL endpoints over the existing XML data, as well as a fundamental part of ontology-based integration frameworks involving XML data sources.

  • Schema Transformation. XML Schema to OWL by using the XS2OWL framework.
  • Mapping Generation. The mappings between the XML Schemas and their OWL representations can be automatically detected and stored as XML documents.
  • Mappings Specification. Mappings between OWL-RDF/S ontologies and XML Schemas can be manually specified and used in the SPARQL to XQuery translation.
  • Query Translation. SPARQL to XQuery Translation: Every SPARQL query that is posed over ontologies (RDF/S - OWL), is translated into an XQuery query that can be answered from the XML data.
  • Query Results Transformation. The query results are transformed in the preferred SPARQL Query Result XML Format or in RDF format.
  • XML - RDF Transformation.Transformation of XML data in RDF syntax and vice versa.


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Related Projects.[edit]

  • SPARQL-RW : Ontology Mapping and SPARQL Query Rewriting.
  • XS2OWL : Transform XML Schema into OWL otnologies.