Krextor - An Extensible XML->RDF Extraction Framework.
Christoph Lange · 2009
Abstract. The semantics of an XML-based language can be specified by mapping an XML schema to an ontology, thus enabling the wide range of XML applications to contribute to the Semantic Web. The Krextor XML→RDF extraction framework proposes a practical solution to this problem, novel in its extensibility. We present its architecture and show how it can easily be extended to support additional input and output languages. 1 Introduction: Semantic Markup and RDF In the well-known and hotly debated layer cake architecture of the Semantic Web (see [9] for a survey of its different incarnations), XML has always been placed below RDF. This must not be misunderstood in a way that XML should only be used for encoding higher-layer formalisms like RDF or OWL in a standardized way