S. Bischof, D. Decker, T. Krennwallner, N. Lopes, A. Polleres:
"Mapping between RDF and XML with XSPARQL";
Bericht für Digital Enterprise Research Institute, National University of Ireland, Galway; Berichts-Nr. DERI-TR-2011-04-04, 2011; 44 S.

One of the promises of Semantic Web applications is to seamlessly deal with heterogeneous data. While the Extensible Markup Language (XML) has become widely adopted as an almost ubiquitous interchange format for data, along with transformation languages like XSLT and XQuery to translate from one XML format into another, the more recent Resource Description Framework (RDF) has become another popular standard for data representation and exchange, supported by its own powerful query language SPARQL, that enables extraction and transformation of RDF data. Being able to work with these two languages using a common framework eliminates several unnecessary steps that are currently necessary when handling both formats side by side. In this report we present the XSPARQL language that, by combining XQuery and SPARQL, allows to query XML and RDF data using the same framework and, respectively transform one format into the other. We focus on the semantics of this combined language and present an implementation, including discussion of query optimisations along with benchmark evaluation.

XML, RDF, SPARQL, XQuery

http://www.deri.ie/fileadmin/documents/DERI-TR-2011-04-04.pdf

Projektleitung Thomas Eiter:
Net2¿A Network for Enabling Networked Knowledge