[seek-dev] [Bug 1258] New: - store, query, and access ontologies in ecogrid

Bertram Ludaescher ludaesch at sdsc.edu
Thu Jan 15 14:20:18 PST 2004


Thanks for sending this nice summary. I'm cc-ing Shawn and Kai (from
GEON) explicitely too...


>>>>> "RW" == Rich Williams <rwilliams at nceas.ucsb.edu> writes:
RW> Hi -
RW> I saw this bug posting in my email and thought I could provide some helpful
RW> context.  There are some tools available in the semantic web community that
RW> address many of the needs of the ecogrid system, though of course not in a
RW> grid computing environment.
RW> Jena (http://jena.sourceforge.net/) is a set of open source Java tools that
RW> grew out of the HP semantic web effort.  They were chosen by the Protege
RW> group when they decided to add OWL support to Protege, a choice that I
RW> believe is indicative of the relative maturity of the Jena tools.  Jena
RW> includes parsing of RDF and OWL from various text representations,
RW> persistent (database) storage of RDF triples, RDF and OWL APIs, an RDF query
RW> language, and support for inference engines.  I recently began working with
RW> the Jena APIs and found them relatively easy to learn and it has so far been
RW> reliable.
RW> There are various European based semantic web initiatives that provide tools
RW> in various states of development.  Check out
RW> http://wonderweb.semanticweb.org/ and http://www.ontoknowledge.org/.  I've
RW> been adapting the WonderWeb OWLAPI for use in the OWL version of
RW> OntoBrowser.  It definitely shows its 'alpha' status - the code for reading
RW> ontologies and exposing them in a set of Java classes is well developed, but
RW> the code for writing the ontology back out in OWL/RDF is not as reliable and
RW> I've had to fix some bugs in it.
RW> I hope this is useful.
RW> Rich
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