Blog
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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Generating RDF from CSV – example using xlwrap
Although there is a dump of the RDF data from CKAN available on-line, it’s the full CKAN dataset and not the UK Government-specific set. For some ongoing experiments, I want some CKAN data in RDF for the published government data listed on data.hmg.gov.uk. The source data is published, however, in CSV and JSON format. This…
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Why Epimorphics?
First and foremost it’s a nice name. And no-one’s used it before. But it does have some significance. Our goal in building linked data solutions is to provide complete solutions to particular problems by bringing together data from multiple sources – and our name tries to capture this goal. Combining data from multiple sources involves…
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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.
