LC Classification as linked data

• Information

  DESCRIPTION

  161-176 p.

  NOTE

  • In 2009 and in 2011, the Library of Congress made two of its largest authority files – Subject Headings and Names – available as linked data via LC's Linked Data Service, ID.LOC.GOV. Both are offered in MADS/RDF and SKOS. It is LC's objective, in 2012, to publish another of its largest authority files as linked data: LC Classification. Whereas the source records for Subject Headings and Names are encoded in the MARC Authority format, from which there is a relatively straightforward mapping to MADS/RDF and SKOS, LC Classification records rely on the MARC Classification format. Mapping from LC Classification to MADS/RDF or SKOS has been a little more challenging.
  • For example, records that represent classification ranges, which are not Concepts intended to be assigned, are not easily accommodated in SKOS. This presents additional problems when needing to accurately represent the relationships in RDF for LC Classification. With comparison to the publication of LCSH and Names at ID.LOC.GOV, this paper will examine issues encountered – and how those challenges were addressed – during the conversion of LC Classification to MADS/RDF and SKOS for release as linked data at ID.LOC.GOV. [Publisher's Text].

  KEYWORDS

  • Library linked data, Library of Congress Classification, Ontology, SKOS, MARC21, Authority control
• In this issue

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