If you've ever had to work with some OWL-ontologies, you have definitely heard the name Pellet. It is perhaps the most wildly use opensource OWL-reasoner/engine out there. Yesterday Evren Sirin announced the release of the first release candidate of the upcoming version 2.0, that (among other things) includes preliminary support for OWL 2.0. But there is also a catch ...
Read more about "Pellet 2.0rc1 ... and a big surprise" ...Archive for [<Tag: owl>]
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Pellet 2.0rc1 ... and a big surprise
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Making OWL files readable
While working on some projects I started also looking into transforming ontology files (and OWL/XML in particular) into something more pleasing to the eye -- such as HTML.
I guess, the obvious first choice here is XSL(T) simply because it's what you want to use if you need to transform one XML file into another (or something different). So I looked around and found among tons of other people doing it some really great work ) by Masahide Kanzaki (whose Exif ontology I absolutely love) as well as some other XSL-stylesheets. Since I hadn't worked with XSLT in ages I also started tinkering around with a stylesheet on my own. The result of that is nothing really great, so far, but if you absolutely have to take a look you can find it within my owltools repository on github. I've only tried it with the OWL-files that Protégé 4.0.x produces and also with Masahide Kanzaki's Exif ontology, so I can at least be fairly sure, that it works ;-)
There still remains the problem, though, that XSLT might not be the ideal tool to render OWL or any kind of RDF application for that matter given the syntax-independence there. For now this XSLT does what I want it to do but eventually the repository might also see some Jena/Pellet-based tool that will treat OWL files more like RDF graphs. I guess that's again something for my life after the final exam ;-)
