National Library of France

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Authorities: persons, corporate bodies, and titles
Email : coordination.catalogue@bnf.fr

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Indexing policy

The adoption by a library of reference systems (classifications, documentary languages or thesauruses, etc.) entails choices that comprise the institution’s indexing policy. Indexing policy is aligned with the institution’s cataloging policy.
Some search engines now offer statistical or associative analysis (e.g. word frequency within a document), linguistic analysis (use of vocabulary and grammar), and semantic analysis (automatic classification of words found in the text, thesaurus browsing, etc.), drawing in particular on subject repositories. Such search engines open up a new avenue for subject research.
See

Librarians can provide added value through subject indexing by analyzing materials and creating additional access points, particularly to titles and authors, enabling users to access them via the catalog. Such indexing relies on various reference systems and authority files. Systems used by BnF include RAMEAU and the Dewey system.

In today’s web environment, subject access via search engines does not involve document analysis, but relies instead on the automatic indexing of all the words in a text and its metadata (digital materials, web pages, bibliographic records, titles, etc.).

Tuesday, July 26, 2011