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The UNIMARC in RDF project: namespaces and linked data. Mirna Willer, Gordon Dunsire, Predrag Perožić Presented at Session 222, IFLA WLIC 2013, 22 August 2013, Singapore. The project. Representation of UNIMARC structure and code lists in RDF (Resource Description Framework)
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The UNIMARC in RDF project: namespaces and linked data Mirna Willer, Gordon Dunsire, Predrag Perožić Presented at Session 222, IFLA WLIC 2013, 22 August 2013, Singapore
The project • Representation of UNIMARC structure and code lists in RDF (Resource Description Framework) • Funded for first year by Permanent UNIMARC Committee • Focus on UNIMARC Bibliographic format • Will take more than 1 year … • Further funding required …
Constructing the element set • “classes and attributes used to describe entities of interest” • W3C Library Linked Data Incubator Group • Represented as RDF classes and properties • In the Open Metadata Registry (OMR) • Uploaded from spread-sheets • Representation at finest level of granularity to avoid loss of information
URI Label U21011a Place of publication … in Publication, distribution, etc. (Current or latest publisher) (Not published …)
Semantic information embedded in content 200 1#$aBibliographicabelgica $fCommission belge de bibliographie $f= BelgischeCommissievoorbibliografie U2001_f : First Statement of Responsibility “= “ : Parallel ??? : Parallel First Statement of Responsibility
UNIMARC Alignment with ISBD Alignment is equal, broader, and narrower!
Value vocabularies • “thesauri, code lists, term lists, classification schemes, subject heading lists, …” • W3C Library Linked Data Incubator Group • Often represented in RDF using Simple Knowledge Organization System (SKOS)
110 (CODED DATA FIELD: CONTINUING RESOURCES) $a (Continuing Resource Coded Data) U110__a0 U110__a1 U110__a2 Property URI = Subfield URI + Character position
“daily”@en “giornaliera”@it unimarcb:U110__a0 crtype: c “diária”@pt resource: 123 unimarcb:U110__a1 freq: a skos:prefLabel “a” reg: a skos:notation unimarcb:U110__a2 Frequency map for Dublin Core, MARC 21, and RDA