Library of Congress Linked Data Service
| Owner | Library of Congress |
|---|---|
| Website | id |
| Commercial | No |
Content license | Public domain |
| Written in | Python |
The LC Linked Data Service is an initiative of the Library of Congress that publishes authority data as linked data.[1] It is commonly referred to by its URI: id.loc.gov.[2]
The first offering of the LC Linked Data Service was the Library of Congress Subject Headings (LCSH) dataset, which was released in April 2009.[3]
Datasets
- Library of Congress Subject Headings (LCSH)
- Library of Congress Name Authority File (LCNAF)
- Library of Congress Classification—because LC Classification uses a different MARC format than LC Authorities, mapping LC Classification to MADS/RDF was more difficult than mapping LCSH or LCNAF.[2]
- Library of Congress Thesaurus for Graphic Materials
- Various MARC codes
- Various preservation vocabularies
Formats
The service presents data in MADS/RDF and SKOS where appropriate, but also uses its own ontology to describe classification resources and relationships more accurately.[2] All records are available individually via content negotiation as XHTML/RDFa, RDF/XML, N-Triples, and JSON.[4]
Each vocabulary is also available to download in its entirety. Id.loc.gov does not currently provide a SPARQL endpoint.[5][6]
Uses
All of LCSH are crosslinked with RAMEAU (d) (Répertoire d’autorité-matière encyclopédique et alphabétique unifié), an authority file from the Bibliothèque nationale de France.[4]
Technical aspects
The id.loc.gov site initially used a fairly lightweight Python program to serve linked data.[5]
See also
References
- ↑ "About". Library of Congress. https://id.loc.gov/about/.
- ↑ 2.0 2.1 2.2 "Library of Congress Classification as linked data". JLIS.it 4 (1). January 2013. doi:10.4403/jlis.it-5465. http://leo.cilea.it/index.php/jlis/article/download/5465/7863. Retrieved 2014-06-01.
- ↑ "LC's Authorities and Vocabularies Web Service: experimenting with Linked Data". American Library Association Mid-Winter Conference. San Diego, California, USA. 2011-01-09. https://id.loc.gov/static/presentations/rgue-controlledvocabs-ala-mw2011-1.pdf. Retrieved 1 June 2014.
- ↑ 4.0 4.1 "ID.LOC.GOV, 1 ½ Years: Review, Changes, Future Plans, MADS/RDF". Digital Library Federation Fall Forum. Palo Alto, California, USA. 2010-11-02. https://id.loc.gov/static/presentations/kefo_dlf_id.pdf. Retrieved 2014-06-01.
- ↑ 5.0 5.1 Summers, Ed; Isaac, Antoine; Redding, Clay; Krech, Dan; Schreiber, Guus; Summers, Ed (2008). "LCSH, SKOS and Linked Data". Web Semantics: Science, Services and Agents on the World Wide Web 20 (May 2013): 35–49. doi:10.1016/j.websem.2013.05.001. (NB. This appears to be two sources mixed up.)
- ↑ "Technical Center". https://id.loc.gov/techcenter/searching.html.
External links
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