Library of Congress Linked Data Service

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]

Library of Congress Linked Data Service
OwnerLibrary of Congress
URLid.loc.gov
CommercialNo
Content license
Public domain
Written inPython

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

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 cross linked with RAMEAU (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]

gollark: We will not* edit your brain**.
gollark: Of course, we foolish mortals will just randomly die after some amount of time anyway, thus upload your mind into the osmarks.tk™ brain emulation network™.
gollark: That's not strictly NEEDED, you won't die as long as all the other conditions are maintained despite your floating.
gollark: You use spotify and not osmarks internet radio™?
gollark: Weaponization of the sun via Nicoll-Dyson beam WHEN?!

See also

References
  1. "About". LC Linked Data Service. Library of Congress. Retrieved 1 June 2014.
  2. Ford, Kevin (January 2013). "Library of Congress Classification as linked data". JLIS.it (Italian Journal of Library & Information Science). 4 (1). doi:10.4403/jlis.it-5465. Retrieved 1 June 2014.
  3. Guenther, Rebecca (2011-01-09). LC's Authorities and Vocabularies Web Service: experimenting with Linked Data (PDF). American Library Association Mid-Winter Conference. San Diego, CA. Retrieved 1 June 2014.
  4. Ford, Kevin (2 November 2010). ID.LOC.GOV, 1 ½ Years: Review, Changes, Future Plans, MADS/RDF (PDF). Digital Library Federation Fall Forum. Palo Alto, CA. Retrieved 1 June 2014.
  5. 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 (2013): 35–49. arXiv:0805.2855. doi:10.1016/j.websem.2013.05.001.
  6. "Technical Center". LC Linked Data Service. Retrieved 1 June 2014.


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