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.
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.
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.
K. Cheung, H. Frost, M. Marshall, E. Prud'hommeaux, M. Samwald, J. Zhao, and A. Paschke. BMC Bioinformatics, (2009)"We have explored a tool called "FeDeRate", which enables a global SPARQL query to be decomposed into subqueries against the remote databases offering either SPARQL or SQL query interfaces.".
T. Green, G. Karvounarakis, and V. Tannen. PODS '07: Proceedings of the twenty-sixth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, page 31--40. New York, NY, USA, ACM, (2007)
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K. Cheung, H. Frost, M. Marshall, E. Prud'hommeaux, M. Samwald, J. Zhao, and A. Paschke. BMC Bioinformatics, (2009)"We have explored a tool called "FeDeRate", which enables a global SPARQL query to be decomposed into subqueries against the remote databases offering either SPARQL or SQL query interfaces.".
M. Martin, and T. Riechert. Catalogus Professorum Lipsiensis -- Konzeption, technische Umsetzung und Anwendungen für Professorenkataloge im Semantic Web, volume 21 of Leipziger Beiträge zur Informatik, chapter 7, Leipziger Informatik-Verbund (LIV), (February 2010)
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F. Amarger, O. Haemmerlé, N. Hernandez, and C. Pradel. Proceedings of the 21th International Conference on Conceptual Structures (ICCS 2013), volume 7735 of Lecture Notes in Computer Science, page 75-89. Springer, (2013)
R. Jäschke, and S. Rudolph. Contributions to the 11th International Conference on Formal Concept Analysis, page 19--34. Technische Universität Dresden, (May 2013)
R. Jäschke, and S. Rudolph. Contributions to the 11th International Conference on Formal Concept Analysis, page 19--34. Technische Universität Dresden, (May 2013)
A. Ahmeti, D. Calvanese, and A. Polleres. Proceedings of the 13th International Semantic Web Conference (ISWC), volume 8796 of Lecture Notes in Computer Science, page 441-456. Springer, (2014)
A. Ahmeti, D. Calvanese, and A. Polleres. Proceedings of the 27th International Workshop on Description Logics (DL), volume 1193 of CEUR Electronic Workshop Proceedings, \upshape\protecthttp://ceur-ws.org/, page 8-20. (2014)
R. Jäschke, and S. Rudolph. Contributions to the 11th International Conference on Formal Concept Analysis, page 19--34. Technische Universität Dresden, (May 2013)
R. Jäschke, and S. Rudolph. Contributions to the 11th International Conference on Formal Concept Analysis, page 19--34. Technische Universität Dresden, (May 2013)
A. Andreevski, R. Stojanov, M. Jovanovik, and D. Trajanov. Proceedings of the 12th International Conference on Informatics and Information Technologies (CIIT 2015), page 131--134. Faculty of Computer Science and Engineering, Skopje, (2015)
P. Fafalios, T. Yannakis, and Y. Tzitzikas. 20th International Conference on Theory and Practice of Digital Libraries (TPDL'16), Hannover, Germany, (2016)
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