w3c semweb use cases and lcsh
Via Ivan Herman I learned that the Semantic Web Use Cases use concepts from lcsh.info. For example look at the RDFa in this case study for the Digital Music Archive for the Norwegian National Broadcaster. You can also look at the Document metadata in a linked data browser like OpenLink. Click on the âDocumentâ and then on the various subject âconceptsâ and youâll see the linked data browser go out and fetch the triples from lcsh.info for âSemantic Webâ and âBroadcastingâ.
One of the downsides to linked-data browsers (for me) is that they hide a bit of whatâs going on. Of course this is by-design. For a more rdf centric view on the data take a look at this output of rapper.
ed@curry:~$ rapper -o turtle http://www.w3.org/2001/sw/sweo/public/UseCases/NRK/ rapper: Serializing with serializer turtle @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix bibo: <http://purl.org/ontology/bibo/> . @prefix dc: <http://purl.org/dc/terms/> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix xhv: <http://www.w3.org/1999/xhtml/vocab#> . @prefix xml: <http://www.w3.org/XML/1998/namespace> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . <http://www.w3.org/2001/sw/sweo/public/UseCases/NRK/> a bibo:Document; dc:rights "\u00A9 Copyright 2007, ESIS, NRK."@en-us; dc:subject <http://lcsh.info/sh85017004#concept>, <http://lcsh.info/sh2002000569#concept>; dc:date "2007-09"^^xsd:dateTime; dc:title "Case Study: A Digital Music Archive (DMA) for the Norwegian National Broadcaster (NRK) using Semantic Web techniques"@en-us; bibo:distributor <http://www.w3.org/>; bibo:authorList ( [ a foaf:Person; foaf:workplaceHomepage <http://www.esis.no>; foaf:name "Dr. Robert H.P. Engels"@nl ] [ a foaf:Person; foaf:workplaceHomepage <http://www.nrk.no>; foaf:name "Jon Roar T\u00F8nnesen"@no ] ) . <http://www.w3.org/2001/sw/sweo/public/UseCases/NRK/Overview.html> xhv:stylesheet <http://www.w3.org/2001/sw/sweo/public/UseCases/style/ucstyle.css> .
You can see Ivanâs using the dc, foaf, skos and bibo vocabularies, and the links out lcsh Concepts. Fun stuff.