All,
OpenLink Software are pleased to announce a new release of Virtuoso,
Open-Source Edition, version 5.0.1.
This version includes:
* An enhanced cost-based optimizer
* Use of fixed rather than dynamically generated statistics,
enhancing the Inference Engine
* Added larger sample in query cost model sampling
* Enhanced SPARQL support:
* Added wide row BREAKUP function to Virtuoso SQL enabling further
optimization of RDF Views of SQL data
* Added support for LIMIT and OFFSET clauses to CONSTRUCT and DESCRIBE
* Significant performance optimizations
* Added QUAD MAP <...> { ... } group pattern which adds granularity
to "Triple Provenance" management
* Documentation updates
* Significant update of all ODS applications
* Added compliance with the latest SIOC vocabulary
* Added Calendar Data Space for managing events and exposing data as RDF
* Added OpenID login and registration
* Added new SIOC spec subclasses which exploit Virtuoso's RDF-
inference engine
* Added AddressBook Data Space for managing Social Networks via SIOC
* Other Bug fixes
For more information please see:
Virtuoso Open Source Edition Links:
Home Page: http://virtuoso.openlinksw.com/wiki/main/
Download Page: http://virtuoso.openlinksw.com/wiki/main/Main/VOSDownload
OpenLink Data Spaces Links:
Home Page: http://virtuoso.openlinksw.com/wiki/main/Main/OdsIndex
SPARQL Usage Examples (re. SIOC, FOAF, AtomOWL, SKOS):
http://virtuoso.openlinksw.com/wiki/main/Main/ODSSIOCRef
Interactive SPARQL Demo: http://demo.openlinksw.com/isparql/
OpenLink AJAX Toolkit (OAT) Links:
Project Page: http://sourceforge.net/projects/oat
Live Demonstration: http://demo.openlinksw.com/DAV/JS/oat/index.html
Regards,
~Tim
--
Tim Haynes
OpenLink Software
<http://www.openlinksw.com/>
