RLUK and the European Library (of which the RLUK is now a member) have just released 17 million records as linked open data. They have released three sets (via Mike Mertens), for which links to the RDF turtle versions are below:
- Complete dataset (6.1 GB)
- Sample of one million records (335 MB)
- Sample of one thousand records (349 KB)
I’ve tried to have a quick look at the last just to get an idea and I’ve isolated what I think is all the data for one book, chosen at random. The whole block of turtle prefixes from the start of the file are included:
@prefix rdaa: <http://rdaregistry.info/Elements/a/> .
@prefix rdac: <http://rdaregistry.info/Elements/c/> .
@prefix rdae: <http://rdaregistry.info/Elements/e/> .
@prefix rdam: <http://rdaregistry.info/Elements/m/> .
@prefix rdaw: <http://rdaregistry.info/Elements/w/> .
@prefix rdau: <http://rdaregistry.info/Elements/u/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix edm: <http://www.europeana.eu/schemas/edm/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix frbrer: <http://iflastandards.info/ns/fr/frbr/frbrer/> .
@prefix ore: <http://www.openarchives.org/ore/terms/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix wgs84pos: <http://www.w3.org/2003/01/geo/wgs84_pos#> .<http://data.theeuropeanlibrary.org/BibliographicResource/3000084490807> a dcterms:BibliographicResource ;
rdam:P30004 "local identifier: http://data.copac.ac.uk/iid/65204626" ;
rdau:P60049 <http://rdvocab.info/termList/RDAContentType/1020> ;
rdam:P30003 "single unit"^^<http://rdvocab.info/termList/ModeIssue> ;
rdau:P60520 "Unkown"@en ;
rdam:P30004 "isbn: 0198750315" ;
rdam:P30156 "The philosophy of history" ;
rdau:P60339 "edited by Patrick Gardiner." ;
rdam:P30157 "Oxford readings in philosophy" ;
rdau:P60398 _:node18kdvnimbx4386 ._:node18kdvnimbx4386 a rdac:C10004 ;
rdaa:P50111 "Patrick L. Gardiner" ;
rdaa:P50121 "1922" .<http://data.theeuropeanlibrary.org/BibliographicResource/3000084490807> rdau:P60073 "1974" ;
rdau:P60099 <http://id.loc.gov/vocabulary/iso639-2/eng> ;
rdau:P60163 _:node18kdvnimbx4387 ._:node18kdvnimbx4387 rdau:P60366 "Oxford University Press" .
<http://data.theeuropeanlibrary.org/BibliographicResource/3000084490807> rdau:P60444 _:node18kdvnimbx4388 .
_:node18kdvnimbx4388 a rdac:C10005 ;
rdaa:P50032 "London" .<http://data.theeuropeanlibrary.org/BibliographicResource/3000084490807> rdau:P60163 <http://id.loc.gov/vocabulary/countries/uk> ;
dcterms:subject _:node18kdvnimbx4389 ._:node18kdvnimbx4389 a frbrer:C1007 ;
rdfs:label "History, Philosophy." ;
dcterms:hasPart _:node18kdvnimbx4390 ._:node18kdvnimbx4390 a frbrer:C1007 ;
rdfs:label "History" .<http://data.theeuropeanlibrary.org/BibliographicResource/3000084490807> dcterms:extent "224 p. ;" , "21 cm." ;
rdau:P60470 "Includes index." ;
dcterms:description "Bibliography: p. [218]-222." .
Some initial observations:
- Lots of RDA! And no ISBD.
- Various vocabularies used, if not all in this example, including: RDA, FRBR, DCTerms, Europeana Data Model (EDM), FOAF, OAI-ORE, OWL, SKOS, and WGS84 geodata.
- No Bibframe.
- Authors are given with RDA elements (as above) rather than headings as such and with VIAF links (although not in this example: see below for a snippet from another book).
A short snippet from another book showing a blank node asserted as being the same as a VIAF entity, having a relationship with a work using RDA, and the detailed RDA data elements for the name:
_:node18kdvnimbx245 owl:sameAs <http://viaf.org/viaf/17463572/> .<http://data.theeuropeanlibrary.org/BibliographicResource/3000087185802> rdau:P60398 _:node18kdvnimbx245 .
_:node18kdvnimbx245 a rdac:C10004 ;
rdaa:P50111 "Niccolo Pagliarini" ;
rdaa:P50121 "1717" ;
rdaa:P50120 "1795" .