About Web NDL Authorities
1. Overview of the Service | 2.What is Authority Data? | 3. The Scope of Provision and Standards for Creation of Authority Data | 4. Handling Personal Information in the Creation and Provision of Authority Data | 5. Notes
In addition to being able to search authority data via “keyword search” and “classification number search”, you can download individual files of all types of the authority data and batch files of the National Diet Library Subject Headings (NDLSH) .
Web NDL Authorities provides a variety of search functions, including search for the relevant bibliographic data by author or subject headings in collaboration with NDL Search.
Web NDL Authorities is based technically on the Semantic Web, which assigns semantically clear data to information resources on the Web. Each record in the authority data can be referenced via a URI in conformance to the Resource Description Framework (RDF) data model, and is searchable via SPARQL.
Authority data is automatically updated daily with new additions, corrections, and deletions. Additionally, notifications are provided via RSS feed for newly established subject headings within the NDLSH.
To control these headings, authority data is organized to indicate alternative headings, synonyms, and the basis of selection for the headings.
|→||Shakespeare, William, 1564-1616|
Authority data for the heading “Shakespeare, William, 1564-1616”
|Type of Authority||Personal Name|
|Heading||Shakespeare, William, 1564-1616|
For more information about the data item, please refer to “Help>Table 2. List of Detail Screen item list”.
Authority data is divided roughly into “Authority File for Authors” and “Subject Authority File”. The same Authority File for Authors and Subject Authority File for personal names, corporate body names, and country names, and geographical authorities corresponding to administrative units are used.
For information on how to select and form the author headings, please refer to the “Rules for Selection and Form of Headings for Personal Names (Since January 2012)” (in Japanese) and the “Rules for Selection and Form of Headings for Corporate Body Names (Since January 2012)” (in Japanese).
For guidelines on subject heading creation and assignment, please refer to the “National Diet Library Subject Cataloging Manual (March 2016) (PDF: 1.45MB)” (in Japanese) and the “National Diet Library Subject Headings (NDLSH) Subdivisions List (March 2016) (PDF: 720KB)” (in Japanese).
Handling of Personal Information in bibliographic data”(in Japanese).