Friday, September 6, 2019

Kerameikos is now a functioning Pelagios Network hub

As per the specifications we outlined in our National Endowment for the Humanities Digital Humanities Advancement Grant application, Kerameikos.org is now a functioning data hub for the Pelagios Network. Like Nomisma.org, objects aggregated into the Kerameikos SPARQL endpoint can be outputted into the Pelagios Open Annotated-based RDF model with a SPARQL query response that is piped through XSLT into RDF/XML. The export model includes some references to IIIF services for a few vases from Harvard Art Museums (as a proof of concept).

While there are over 300 vases in the Kerameikos SPARQL endpoint at the moment, the export includes just under 200 objects that are currently connected to Pleiades URIs through skos:exactMatch with Kerameikos place URIs. In our initial prototype from 2014, a few dozen vases from the Getty Museum were encoded in Getty TGN URIs and British Museum vases were linked to the BM's internal place thesaurus. Using Kerameikos as a bridge between vocabulary systems, the SPARQL query for the Pelagios output includes all vases linked directly to a Kerameikos URI as a production place (?object crm:P108i_was_produced_by/crm:P7_took_place_at ?place) as well as vases linked to any URI that is a skos:exactMatch for a Kerameikos URI. The Pleiades URI is then extracted into the ?match variable.

Coverage of Kerameikos partners in Peripleo.

?object crm:P108i_was_produced_by/crm:P7_took_place_at ?place .
{?place skos:exactMatch ?match FILTER strStarts(str(?match), "https://pleiades")}
UNION {?place^skos:exactMatch ?kid .
  ?kid skos:inScheme kid: ;
       skos:exactMatch ?match FILTER strStarts(str(?match), "https://pleiades")}


The partners whose vases have been integrated into Peripleo include the British Museum, Getty Museum, Ure Museum at the University of Reading, Fralin Museum at the University of Virginia, Indianapolis Museum of Art at Newfields, and the Harvard Art Museums. We expect the list of contributors to grow as more museums and archaeological datasets become part of the Kerameikos Linked Open Data cloud as as we begin to expand our geographic coverage (which is extremely limited at the moment, with URIs created for only a small handful of places).

No comments:

Post a Comment