Querying and viewing the semantic web: An RDF-based perspective

Abstract

Real-scale Semantic Web applications, such as Knowledge Portals and E-Marketplaces, require the management of voluminous repositories of resource metadata. At the same time, personalized access and content syndication involving diverse conceptual representations of information resources are key challenges for such applications. The Resource Description Framework (RDF) enables the creation and exchange of metadata as any other Web data and constitutes nowadays the core language for creating and exchanging resource descriptions worldwide. Although large volumes of RDF descriptions are already appearing, sufficiently expressive declarative query languages for RDF and full-fledged view definition languages are still missing. © Springer-Verlag Berlin Heidelberg 2004.