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Web NDL Authorities

Web NDL Authorities is able to offer both subject authority data (subject headings and subject subdivisions) and name authority data (personal names, family names, corporate names, uniform titles and geographic names) as Linked Open Data (LOD) on a single interface.
The data contained in the Web NDL Authorities are linked to those of the Library of Congress Subject Headings (LCSH) and the Virtual International Authority File (VIAF). *

Web NDL Authorities

Web NDL Authorities provides NDL authority data as LOD. The NDL uses SKOS-XL, SKOS, DC-NDL, RDFS, Dublin Core, FOAF and OWL as terms for authority data descriptions. Web NDL Authorities provides an API via SPARQL to download data.
For more details, please refer to the following specifications in English:

In addition, there are two formats in files for batch download: RDF/XML and TSV. These files contain data of the National Diet Library List of Subject Headings (NDLSH).

For the latest news, see the top page of the Web NDL Authorities.

  • *Virtual International Authority File (VIAF) is a system that is managed by the Online Computer Library Center, Inc. (OCLC) and which links multiple name authority data from national libraries and organizations to create cluster data for each unique name. The VIAF includes the URI from NDL authority data, e.g. http://id.ndl.go.jp/auth/entity/00104237. Web NDL Authorities also provides links to the VIAF. Hence, authority data from the NDL or other organizations are linked through the VIAF, which enables users to find Japanese authority data even when searching in languages other than Japanese.

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