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Industry news and comment, from practical tips for publishing open data to inspiring accounts of how open data has changed businesses.
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OWL 2 for RDF Vocabularies
I was at the Bristol Vocamp recently (a fun event) and there was a lot of discussion around issues of validating RDF and checking conformance with lightweight RDF vocabularies. There was some talk about constraint expression languages but I suggested that OWL, and especially OWL 2, already do quite a lot of that. Couple that…
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RDF Result sets
In some recent semantic web applications, where we’ve been creating user interfaces over REST style interfaces over RDF data sets, we found a common pattern emerging – ResultSets. The approach we took has been documented but it’s buried in other details so I’d like to pull out the essential pattern in this post. Situation The…
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Investigating VoID and CKAN
For some experiments we’re doing at the moment, I need some datasets from CKAN that also include VoID markup. Fortunately, the metadata from CKAN has been translated to RDF: there’s no official reference that I can find, but this thread describes the main points. Sadly, the CKAN RDF does not include any elements from VoID.…
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Epimorphics launched
On November 9th we launched Epimorphics limited, a new company providing consultancy, software tools and services for the web of data.