Document (#28726)

Author

Losee, R.

Title

¬A performance model of the length and number of subject headings and index phrases

Source

Knowledge organization. 31(2004) no.4, S.245-251

Year

2004

Abstract

When assigning subject headings or index terms to a document, how many terms or phrases should be used to represent the document? The contribution of an indexing phrase to locating and ordering documents can be compared to the contribution of a full-text query to finding documents. The length and number of phrases needed to equal the contribution of a full-text query is the subject of this paper. The appropriate number of phrases is determined in part by the length of the phrases. We suggest several rules that may be used to determine how many subject headings should be assigned, given index phrase lengths, and provide a general model for this process. A difference between characteristics of indexing "hard" science and "social" science literature is suggested.

Footnote

Die Aussagen dieses Beitrages könnten einmal mit den RSWK in Verbindung gebracht werden

Theme

Indexierungsstudien

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5. Souza, R.R.; Raghavan, K.S.: ¬A methodology for noun phrase-based automatic indexing (2006) 0.28

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