Tag Archives: SPARQL

GSTAR web services; now with added GeoJSON

"A boundary is an array of an array of an array of arrays" by Paul Downey

“A boundary is an array of an array of an array of arrays” by Paul Downey

Following on from the last update concerning the GSTAR web services, the final pieces of infrastructure for the case studies and demonstrator are nearly complete. Building on the API, a GeoJSON output format has been added so that results from GeoSPARQL queries can a) be accessed via a simple URL as with all other outputs and b) visualised using a web map or indeed any platform which can consume GeoJSON.  Continue reading

GSTAR Web Services

Web by David Reid

Web by David Reid

With all the source data prepped and ready to go, the next step is to build some demonstrators to show how such geosemantic resources can be used in practice. Whilst very powerful, a Sparql endpoint is not the most friendly way of interacting with data resources, especially from within a web based application where options for programming are a bit limited. There is still quite some debate on this topic which will be covered in more detail in the thesis (watch this space; still on track for submission 1st/2nd quarter 2016!) but the approach I have opted for is an API using web services to provide a range of outputs via a combination of URLs and parameters. Continue reading

Linked Data: From interoperable to interoperating

Piazza Mercato, Siena

Piazza Mercato, Siena

Videos of all the presentations in this CAA session, held in Siena 2015, which I blogged about earlier. Full credit and thanks due to Doug Rocks-Macqueen and his Recording Archaeology project for recording and making this and other sessions available (see also the session on ArchaeoFOSS and the keynotes). Thanks also to Leif Isaksen and Keith May for organising and chairing the session.

The session outline:

Linked Data and Semantic Web based approaches to data management have now become commonplace in the field of heritage. So commonplace in fact, that despite frequent mention in digital literature, and a growing familiarity with concepts such as URIs and RDF across the domain, it is starting to see fall off in Computer Science conferences and journals as many of the purely technical issues are seen to be ‘solved’. So is the revolution over? We propose that until the benefits of Linked Data are seen in real interconnections between independent systems it will not properly have begun. This session will discuss the socio-technical challenges required to build a concrete Semantic Web in the heritage sector.

The videos for the accepted papers:

  • The Syrian Heritage Project in the IT infrastructure of the German Archaeological InstitutePhilipp Gerth, Sebastian Cuy (video)
  • Using CIDOC CRM for dynamically querying ArSol, a relational database, from the semantic webOlivier Marlet, Stéphane Curet, Xavier Rodier, Béatrice Bouchou-Markhoff (video)
  • How to move from Relational to Linked Open Data 5 Star – a numismatic exampleKarsten Tolle, David Wigg-Wolf (video)
  • The Labeling System: A bottom-up approach for enriched vocabularies in the humanitiesFlorian Thiery, Thomas Engel (video)
  • From interoperable to interoperating Geosemantic resourcesPaul J Cripps, Douglas Tudhope (video)

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From interoperable to interoperating Geosemantic resources

Ospedale Psichiatrico - the conference venue, aka the Asylum...

Ospedale Psichiatrico – the conference venue, aka (rather appropriately, perhaps) the Asylum…


Following on from my earlier post on CAA2015, my presentation entitled From interoperable to interoperating Geosemantic resources is now available on YouTube thanks to Doug Rocks-Macqueen and his Recording Archaeology project. Indeed, there are a whole collection of presentations from the conference (and numerous others conferences) available, all thanks to Doug’s dedication; his work is a great asset to the community and the growing resource he is creating is of enormous benefit so all thanks due to Doug.
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GSTAR @ Computer Applications in Archaeology (CAA) 2015

Conference

Conference

Following on from my presentation at CAA2014 in Paris, I was invited to submit a paper to a session at CAA2015 covering Linked Data (LD) and focussing on the difference between being theoretically interoperable and interoperating in practice. Continue reading

So long and thanks for all the fish… Hello G-STAR!

So long and thanks for all the fish...

So long and thanks for all the fish…

After over five years as the Geomatics Manager for Wessex Archaeology, I have now left to start a PhD in computer science, investigating geosemantic tools for archaeological research (G-STAR) based in the Hypermedia Research Unit at the University of Glamorgan with input from the Geographical Information Systems Research Unit. Continue reading