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Verk i lenkede data fra europeiske nasjonalbibliotek/OCLC Kim Tallerås, ABI/HiOA Veien til et verksregister Nasjonalbiblioteket 14. oktober 2016
19. OKTOBER 2016
Verk i et Linked data-perspektiv
– Verk i noen utvalgte – Linked data-modeller/vokabular/ontologier – publiserte samlinger av Linked data
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http://eksempel.org/dag_solstad
http://eksempel.org/genanse_og
verdighet
eksempel:Person eksempel:Verk
rdf:type rdf:type
eksempel:harForfatter
RDF/vokabularer/ontologier
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BIBFRAME Schema.org FRBRoo
Manifestasjon bf:Instance schema:CreativeWork frbroo:F3_Manifestations_Product_Type frbroo:F4_Manifestation_Singleton
Uttrykk bf:Work schema:CreativeWork frbroo:F2_Expression ++
Verk bf:Work schema:CreativeWork frbroo:F1_Work ++
BNE BNB BNF DNB OCLC
Manifestasjon bne:C1003 bibo:Book dct:BibliographicResource rda:Manifestation bibo:Document schema:CreativeWork
Uttrykk bne:C1002 rda:Expression schema:CreativeWork
Verk bne:C1001 rda:Work schema:CreativeWork
bf http://id.loc.gov/ontologies/bibframe.html# bibo http://purl.org/ontology/bibo/ bne http://datos.bne.es/def/ dct http://purl.org/dc/terms/ frbroo http://erlangen-crm.org/efrbroo/ rda http://rdvocab.info/uri/schema/FRBRentitiesRDA/ schema http://schema.org/
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“Work that is an expression of a described Work. For use to relate Works under FRBR/RDA rules.” http://id.loc.gov/ontologies/bibframe.html#p_hasExpression
http://eksempel.org/ dag_solstad
http://eksempel.org/ genanse_og_verdighet
bf:Person
bf:Work
rdf:type
bf:contributor
http://eksempel.org/ shyness_and_dignity
rdf:type
bf:hasExpression
bf:Work
rdf:type
WEMI-relasjoner i BIBFRAME
http://eksempel.org/ genanse_og_verdighet
_9788249511402 bf:Instance
rdf:type
bf:hasInstance
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“A creative work that this work is an example/instance/realization/derivation of. http://schema.org/exampleOfWork
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http://eksempel.org/ dag_solstad
http://eksempel.org/ genanse_og_verdighet
schema: Person
schema: CreativeWork
rdf:type
schema:author http://eksempel.org/ shyness_and_dignity
rdf:type
schema:exampleOfWork
rdf:type
WEMI-relasjoner i Schema.org
schema: CreativeWork
Verk hos OCLC
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Verk hos OCLC
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Verk hos OCLC
<http://worldcat.org/entity/work/id/55914218> <http://schema.org/alternateName> "Shyness & dignity" . <http://worldcat.org/entity/work/id/55914218> <http://schema.org/name> "A mellékszereplo pillanata"@hu . <http://worldcat.org/entity/work/id/55914218> <http://schema.org/name> "A mellékszereplo pillanata" . <http://worldcat.org/entity/work/id/55914218> <http://schema.org/workExample> <http://www.worldcat.org/oclc/180977241> . <http://worldcat.org/entity/work/id/55914218> <http://schema.org/contributor> <http://worldcat.org/entity/person/id/2632477612> . <http://worldcat.org/entity/work/id/55914218> <http://schema.org/name> "Ostych a dustojnost" . <http://worldcat.org/entity/work/id/55914218> <http://schema.org/name> "Genanse och verdighet : roman" . <http://worldcat.org/entity/work/id/55914218> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/CreativeWork> . <http://worldcat.org/entity/work/id/55914218> <http://schema.org/workExample> <http://www.worldcat.org/oclc/66430229> . <http://worldcat.org/entity/work/id/55914218> <http://schema.org/author> <http://worldcat.org/entity/person/id/2632720711> . <http://worldcat.org/entity/work/id/55914218> <http://schema.org/workExample> <http://www.worldcat.org/oclc/636738305> . <http://worldcat.org/entity/work/id/55914218> <http://schema.org/workExample> <http://www.worldcat.org/oclc/224597201> .
Bibliografiske entiteter i europeiske Linked data-samlinger
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DNB
Klasse Antall entiteter
Andel av entiteter i settet
bibo:Document 10045241 30,70 %
BNB
Klasse Antall entiteter
Andel av entiteter i settet
dct:BibliographicResource 3194701 31,50 % bibo:Book 2957614 29,20 %
BNE
Klasse Antall entiteter
Andel av entiteter i settet
bne:C1003 (Manifestasjon) 1950465 33,80 % bne:C1001 (Verk) 1451069 25,20 % bne:C1002 (Uttrykk) 319332 5,50 %
BNF
Klasse Antall entiteter
Andel av entiteter i settet
rda:Manifestation 8423213 27,50 % rda:Expression 8423213 27,50 % rda:Work 520671 1,70 %
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Interlinking av verk
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Subjektets klasse Predikat Objekt-domene Antall unike entiteter
Fullstendighet for klasse
http://datos.bne.es/def/C1005 (Pers) http://www.w3.org/2002/07/owl#sameAs http://viaf.org/viaf/ 385727 31,25 % http://datos.bne.es/def/C1006 (Corp) http://www.w3.org/2002/07/owl#sameAs http://viaf.org/viaf/ 65578 21,26 % http://datos.bne.es/def/C1001 (Work) http://www.w3.org/2002/07/owl#sameAs http://viaf.org/viaf/ 41593 2,87 % http://datos.bne.es/def/C1002 (Exp) http://www.w3.org/2002/07/owl#sameAs http://viaf.org/viaf/ 15960 5,00 % ??? http://www.w3.org/2002/07/owl#sameAs http://viaf.org/viaf/ 50062
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What is the point of FRBRizing catalogs, if catalogs can be RDFized and LLDized without being previously FRBRized? Who, in the Linked data universe, apart from loony librarians, cares about those too subtle distinctions between Work, Expression, and Manifestation? A book is a book is a book. FRBR is a has-been. FRBR is an archaic model from last century. At BNF, we provide an RDF version of our records, on the data.bnf.fr site, using a model that is derived from FRBR, but is not a fully developed implementation of FRBR: the Work and Manifestation levels are clearly displayed, but the Expression level is only hinted at. And that is great: in the LLD world, there may be no need for a dogmatic and mechanical application of the “WEMI” structure. Data.bnf.fr does its job perfectly well, without having to speak FRBR fluently. Le Boeuf, P. (2012). Foreword. Cataloging & Classification Quarterly, 50(5-7), 355–359. http://doi.org/10.1080/01639374.2012.682001
Hvilke problemer kan man løse med RDF og Linked data? • Kan man f.eks. konvertere fra MARC til RDF og få med Verk/FRBR på kjøpet? • Hvis Linked data grunnleggende sett handler om interoperabilitet, hvordan oppnår man mest
mulig av det? Hvilke lenker? Hvilken semantikk? Hva er sammenhengen mellom underliggende datamodell og brukergrensesnitt?
• Innebærer datakvalitet, eller «fitness for use», det samme for sluttbrukere, Linked data-konsumenter eller fremtidige utviklere? Hva er «fitness» og hva er «use» når det gjelder verk?