DERI researchers have developed a new high-speed RDF search engine capable of answering search queries with more than seven billion RDF statements in mere fractions of a second.
Zhdanova, A.V., Krummenacher, R., Henke, J., Fensel, D. "Community-Driven Ontology Management: DERI Case Study". In Proceedings of the IEEE/WIC/ACM International Conference on Web Intelligence, 19-22 September 2005, Compiegne, France, IEEE Computer Societ