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[ANN] LENA: Lens-based RDF Browser

From: Thomas Franz <franz@uni-koblenz.de>
Date: Wed, 10 Oct 2007 11:43:40 +0200
Message-ID: <470C9ECC.6090803@uni-koblenz.de>
To: semantic-web@w3.org, people@semanticdesktop.org
CC: Jörg <jmkoch@uni-koblenz.de>

Dear Semantic-Web and Semantic-Desktop enthusiasts,

I'm pleased to announce the first official release of LENA [1], a
Fresnel Lens based RDF Navigator with SPARQL selector support.

[1] http://isweb.uni-koblenz.de/Research/lena

A demo is available here: http://dom.uni-koblenz.de:8080/lena

LENA stands for LEns based NAvigator. A lens represents a particular
view onto RDF data and is described by the Fresnel Display Vocabulary
[2]. LENA enables viewing RDF data in your web browser, rendered
according to the lens descriptions you provide. LENA supports the use of
multiple lenses and indicates if they are available for a resource, so
that a different view onto the same data is always just one click away!

To write lenses for complex RDF structures, LENA supports SPARQL
selectors. While SPARQL [3] is a designated Fresnel selector language,
an implementation did not yet exist. LENA provides an extension to
support Fresnel SPARQL selectors that is now integrated into the Simile
Fresnel engine [4].

The data which shall be processed by LENA, can either be put into the
provided directory or be accessed through a Sesame [5] HTTP repository.
For more information about the usage of LENA see the project page [1].

Work on LENA was funded by the X-Media project (www.x-media-project.org)
sponsored by the European Commission as part of the Information Society
Technologies (IST) programme under EC grant number IST-FP6-026978.

[1] http://isweb.uni-koblenz.de/Research/lena
[2] http://www.w3.org/2005/04/fresnel-info/
[3] http://www.w3.org/TR/rdf-sparql-query/
[4] http://simile.mit.edu/wiki/Fresnel
[5] http://www.openrdf.org/
Thomas Franz
ISWeb, University of Koblenz
Received on Wednesday, 10 October 2007 09:43:45 UTC

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