OWLIM 4.3 with SPARQL 1.1 federation and a new plug-in API and a range of updates for performance and robustness

[Apologies for cross-posting]

Ontotext are pleased to announce the release of OWLIM version 4.3 
<http://www.ontotext.com/owlim>. This release has been coordinated with 
the latest release of the Sesame openRDF framework 
<http://www.openrdf.org/> which has received major contributions from 
Ontotext <http://www.ontotext.com> and our partners FluidOps 
<http://www.fluidops.com/>.

OWLIM 4.3 is bundled with Sesame 2.6 
<http://www.openrdf.org/news.jsp#sesame-2.6.0> to deliver SPARQL 1.1 
Federation <http://www.w3.org/TR/sparql11-federated-query/>. This 
emerging SPARQL standard provides a means to distribute queries over 
multiple SPARQL end-points. The big advantage of this technology is the 
ability to enrich query results by 'joining' to other 3rd party 
resources, e.g. linked data services that provide a SPARQL interface.

Many of the advanced features of OWLIM are implemented as plug-ins and 
the API for building such extensions has been made public for this 
release. OWLIM plug-ins can communicate and share data via various 
'hooks' in to the processing pipelines. This allows custom indices to be 
used, and opens up many possibilities for improving performance and 
adding novel features.

OWLIM 4.4 is scheduled for release at the end of January 2012 and will 
include the much anticipated data-type index for improved performance 
when dealing with range queries over numeric and date/time types.

Full documentation for all OWLIM editions is available online 
<http://owlim.ontotext.com>.

The OWLIM team
November 2011