Indexing width

Indexing width denotes the number of keywords or descriptors assigned to cover the technical content when indexing a document.

The DIN 31 623, Part 1, Section 5 defines assessment criteria for indexing results so (quotations from the standard):

"The indexing width indicates the degree of indexing in relation to the technical content of a document; it is expressed as a first approximation in the number of descriptors or notations assigned ."

The indexing width is used in information retrieval as an indicator for the expected recall during a search. The recall of a search increases with increasing indexing width , while a higher precision of a search can be expected with increasing indexing depth .

See also

• Indexing
• Indexing consistency

literature

• Lewandowski, Dirk: Web Information Retrieval: Technologies for information search in the Internet . - Frankfurt am Main: DGI, 2005 (DGI-Schrift Informationswwissenschaft; 7). - ISBN 3-925474-55-2
• Nohr, Holger: Basics of automatic indexing: A textbook . - 3rd, revised. Edition - Berlin: Logos Verlag, 2005. ISBN 3-8325-0121-5
• Stock, Wolfgang : Information Retrieval: Searching for and finding information . - Munich; Vienna: Oldenbourg, 2007.
• Siegmüller, Renate: Method of automatic indexing in library- related applications . - Berlin: Institute for Library and Information Science at the Humboldt University in Berlin, 2007. - 106 pp. (Berlin handouts on library and information science; issue 214)

Web links

• TU Berlin - Process of automatic indexing in library-related applications (PDF; 3.2 MB)
• Help design - found quickly: the index as an information finder (PDF; 882 kB)

Individual proof

1. ↑ A-Step automatic content indexing - learning module of the HAW Hamburg ( Memento of the original from December 23, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and not yet checked. Please check the original and archive link according to the instructions and then remove this notice.