Sparklis lets you explore a RDF dataset through a SPARQL endpoint without the need to read or write SPARQL queries. Queries are displayed in natural language syntax, and are incrementally built by clicking suggested query elements, and by inserting them at the current focus. Only relevant suggestions are made, so that empty results are avoided.
What is the Semantic Web? Read on for a brief introduction to the Semantic Web, how to get started using it, and to understand why we should invest in making our content semantic.
Ontotext GraphDB is a highly-efficient and robust graph database with RDF and SPARQL support. This documentation is a comprehensive guide, which explains every feature of GraphDB as well as topics such as setting up a repository, loading and working with data, tuning its performance, scaling, etc.
C. Kiefer, A. Bernstein, and M. Stocker. The Semantic Web --- Proceedings of the 6th International Semantic Web Conference and the 2nd Asian Semantic Web Conference (ISWC 2007 + ASWC 2007), November 11-15, 2007, Busan, Korea, volume 4825 of Lecture Notes in Computer Science, page 295--308. Springer, Berlin--Heidelberg, Germany, (November 2007)
C. Kiefer, A. Bernstein, and M. Stocker. Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, volume 4825 of LNCS, page 295--308. Berlin, Heidelberg, Springer Verlag, (November 2007)
O. Corby, and C. Faron-Zucker. Proceedings of the 15th International Conference on Conceptual Structures (ICCS 2007), volume 4604 of Lecture Notes in Artificial Intelligence, page 472-475. Berlin, Heidelberg, Springer-Verlag, (July 2007)