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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Implementing a GraphQL API for a Graph Database
Simon, one of our senior engineers talks about his experiences implementing a GraphQL API for a Graph Database.
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Regression testing and data checking using SPARQL
Many of our projects involve the transformation of source data from a tabular format into RDF that has been aligned with classes and properties drawn from RDF vocabularies. Over time the source data, target vocabularies and the transforms themselves can be subject to change. We have a growing number of relatively generic regression checks that…
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Building a SPARQL query editor in VueJS
This summer, for three months, I had the chance to work for Epimorphics as an Intern on an internal project to rewrite Qonsole in Vue JS. Qonsole is a project that my mentor, Ian, worked on seven years ago, as a simple console for running SPARQL queries on the web. The goal of this project…
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XML Summer School
This year Stuart is supporting the SPARQL and Data Modelling sessions at the 2018 XML Summer School.
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What has linked-data ever done for us?
In one of the more memorable scenes of The Life of Brian, John Cleese’s character Reg asks his assembled group "What have the Romans ever done for us?" Followed, as most people know, by a long litany of everything the Romans had indeed done for them.
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Data Autopsy by SPARQL – looking for things that don’t join up
As we take data from different sources data quality issues are something that we have to look out for. This post is about the generic SPARQL queries we use to track down ‘dangling references’ and to develop some insight into the systemic causes of the breakage… a “Data Autopsy by SPARQL”
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Elementary my dear Jena
We’ve been thinking about Jena quite a bit lately with the move into Apache incubation. We can tell from all the emails we handle on Jena that it is used pretty heavily but we don’t always get to hear about where it is being used. Which made it fun to discover recently that IBM Watson,…