Management of Meta Knowledge for RDF Repositories

The integration of knowledge from heterogeneous information sources and applications does not only require the conceptual mapping of information structures, but it also requires the treatment of semantic meta knowledge (i.e. knowledge about knowledge) in a generic manner. We describe a generic mechanism for (i) modeling and (ii) querying semantic meta knowledge in the context of RDF repositories. We substantiate our approach by use cases from a project about multi-modal information integration from different information sources.