Monday, April 18, 2016

Nomisma.org Is Now a Functioning Pelagios Commons Hub

Given the interest of our partners (like Berlin and the Prehistory Museum of Valencia) in participating in the Pelagios Project, while perhaps lacking the funding to develop export scripts directly, I have extended the functionality of Nomisma to support exporting directly into the Pelagios Open Annotation RDF model. This was a fairly straightforward task which required two new XML pipelines in the Page Flow Controller in Orbeon: one for the VoID metadata RDF and one for the data dump (or dumps, since each dump is chunked into 5,000 coins).

The pipelines execute SPARQL queries that are piped through XSLT transformations into RDF. The VoID RDF aggregates subsets bound to the void:Datasets described in the Nomisma triplestore in order to provide descriptive metadata and license URLs for our partners (e.g., http://nomisma.org/pelagios-objects.void.rdf). The data dumps execute a SPARQL query that generates a list of nmo:NumismaticObjects linked to mints implicitly by coin types (nmo:hasTypeSeriesItem). Since ancient mints defined on Nomisma are linked to URIs in the Pleiades Gazetteer of Ancient Places, it is fairly simple to make ancient coins that have been ingested into the Nomisma triplestore available in Pelagios.

I also updated the Pelagios icon on the front page of Nomisma.

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