SPARQL 1.1 introduces the idea of federated SPARQL queries – this enables you to execute part of your SPARQL query against a remote SPARQL endpoint. I thought I’d provide some examples of using this feature in government linked open data. …

Federating SPARQL Queries Across Government Linked Data Read more »

Please note in some of the examples below I have been having trouble with wordpress ‘correcting’ quote marks in my text. If you find the queries don’t work you may need to manually replace the copied quote marks from below …

Ordnance Survey Linked Data: The Search API Read more »

A colleague was asking me if I knew how to plot SPARQL query results from the Ordnance Survey linked data onto an OS OpenSpace map. Although I’d done it a few times before, it was never something I’d blogged. So …

Putting SPARQL on the Map with Ordnance Survey Linked Data & OS OpenSpace Read more »

I just wanted to quick mention one feature of the Ordnance Survey linked data SPARQL endpoints that I think it pretty neat.  Go to the SPARQL endpoint and try one of the queries from my last four blogs posts. In …

Ordnance Survey SPARQL Endpoint Read more »

Publishing data is a start, and publishing it in a common standard that others can understand and re-use is the next step; but wouldn’t it be even more useful if you could see correlations between seemingly unrelated sets of data? …

‘Linked data’: making connections between unrelated datasets Read more »