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• Learn about the Semantic Web
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• Frequently Asked Questions
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News

• RIF is now a W3C Recommendation [06/23/10]
• OWL 2 is now a W3C Recommendation [10/28/09]
• OWL 2 is a Proposed Recommendation [09/25/09]
• OWL 2 is now a Candidate Recommendation [06/18/09]

Upcoming Conferences

• June 21-25 : Semantic Technology Conference (SemTech 2010)
  San Francisco, CA
• October 21-23 : 4th International Web Rule Symposium (RuleML 2010)
  Alexandria, VA
• November 7-11 : 9th International Semantic Web Conference (ISWC 2010)
  Shanghai, China

Project News

• Parliament is in session!
• Ontobase 3.3.4 released
• Downtime - 12/30/2008
• OntoBase 3.3 released

Top Downloads

(123,609) OWL-S Editor
(41,252) OWLS-MX Semantic Web Service Matchmaker
(31,532) SWeDE
(29,826) OWL-S IDE
(27,238) OWL-S UDDI Matchmaker Client
(18,710) OWL-S UDDI Matchmaker
(16,512) OWL-S API
(11,033) OWL-S VM
(10,835) OWL-S Service Retrieval Test Collection
(10,818) wsdl2owl-s

New Projects

(08/10) Process-Based Service Matchmaker
(04/19) iSeM Intelligent Service Matchmaker
(11/02) Geospatial Ontologies
(10/22) S*QL
(09/18) Query Rewriting-Based Service Composer
(09/15) SWRL Test Suite
(08/01) Pena, PHP port of Jena
(07/05) TANGRAM
(07/05) LOCO-Analyst
(05/25) Model-Driven Semantic Service Matchmaker