Hi Michael, This is really exciting news, especially for those of us Linked Data enthusiasts in the world of libraries and archives. Congratulations!
I haven't fully read the wiki page yet, so I apologize if this question is already answered there. I was wondering why you chose to mint multiple URIs for the same concept in different languages. For example: uqbar:~ ed$ rapper -o turtle http://dewey.info/class/641/ @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix xhtml: <http://www.w3.org/1999/xhtml/vocab#> . @prefix cc: <http://creativecommons.org/ns#> . @prefix dct: <http://purl.org/dc/terms/> . @prefix skos: <http://www.w3.org/2004/02/skos/core#> . <http://dewey.info/class/641/2009/08/about.en> cc:attributionName "OCLC Online Computer Library Center, Inc." ; cc:attributionURL <http://www.oclc.org/dewey/> ; cc:morePermissions <http://www.oclc.org/dewey/about/licensing/> ; dct:isVersionOf <http://dewey.info/class/641/> ; dct:language "en"^^dct:RFC4646 ; a skos:Concept ; xhtml:license <http://creativecommons.org/licenses/by-nc-nd/3.0/> ; skos:broader <http://dewey.info/class/64/2009/08/about.en> ; skos:inScheme <http://dewey.info/scheme/2009/08/about.en> ; skos:notation "641"^^<http://dewey.info/schema-terms/Notation> ; <http://dewey.info/class/641/2003/08/about.de> cc:attributionName "OCLC Online Computer Library Center, Inc." ; cc:attributionURL <http://www.oclc.org/dewey/> ; cc:morePermissions <http://www.oclc.org/dewey/about/licensing/> ; dct:isVersionOf <http://dewey.info/class/641/> ; dct:language "de"^^dct:RFC4646 ; a skos:Concept ; xhtml:license <http://creativecommons.org/licenses/by-nc-nd/3.0/> ; skos:broader <http://dewey.info/class/64/2003/08/about.de> ; skos:inScheme <http://dewey.info/scheme/2003/08/about.de> ; skos:notation "641"^^<http://dewey.info/schema-terms/Notation> ; skos:prefLabel "Essen und Trinken"@de . ... I kind of expected the assertions to hang off of a language and version agnostic URI, with perhaps dct:hasVersion links to previous versions. <http://dewey.info/class/641/> cc:attributionName "OCLC Online Computer Library Center, Inc." ; cc:attributionURL <http://www.oclc.org/dewey/> ; cc:morePermissions <http://www.oclc.org/dewey/about/licensing/> ; dct:hasVersion <http://dewey.info/class/641/2009/08/> ; dct:language "de"^^dct:RFC4646 ; a skos:Concept ; xhtml:license <http://creativecommons.org/licenses/by-nc-nd/3.0/> ; skos:broader <http://dewey.info/class/64/2003/08/about.de> ; skos:inScheme <http://dewey.info/scheme/2003/08/about.de> ; skos:notation "641"^^<http://dewey.info/schema-terms/Notation> ; skos:prefLabel "Food & drink"@en, "Essen und Trinken"@de . See how multiple skos:prefLabel assertions can be made using the same subject? To illustrate why I think this is important consider how someone may use the resources at dewey.info: <http://openlibrary.org/b/OL11604988M> dct:subject <http://dewey.info/class/641/> . If we follow our nose to http://dewey.info/class/641 we will get back some RDF, but the description we get isn't about the subject <http://dewey.info/class/641/> so what are we to make of the above assertion? Another unrelated thing I noticed is that the RDFa doesn't seem to be usable by the RDFa Distiller: http://tinyurl.com/nm8lfa Sorry if this was too long. Let me just say again how exciting it is to see this work coming out of OCLC. //Ed
