Document (#20638)

Author

Gil-Leiva, I.
Munoz, J.V.R.

Title

Analisis de los descriptores de diferentes areas del conocimiento indizades en bases de datos del CSIC : Aplicacion a la indizacion automatica

Source

Revista Española de Documentaçion Cientifica. 20(1997) no.2, S.150-160

Year

1997

Abstract

Studies the value of scientific articles' titles and abstracts as sources of terms for document indexing in relation to 6 areas of knowledge: library and information science, medicine, chemistry, biology, psychology and physics, indexed in the databases ISOC, IME and ICYT of the CSIC. Also examines the syntagmatic structures of the indexing terms found in the field 'descriptors'. as well as the relationship between length of document and number of descriptors. Concludes that if the abstracts are not well made and the titles are not precise, they are not definitive sources for the extractions of concepts; the most common syntactic structure is the noun phrase, followed by noun+adjective and noun+noun; and no significant relationship was found between length of document and number of descriptors assigned to it

Footnote

Übers. d. Titels: Descriptors analysis on different knowledge ares in CSIC databases: application on automatic indexing

Theme

Automatisches Indexieren

Field

Physik
Chemie
Medizin
Psychologie
Biologie
Informationswissenschaft
Bibliothekswesen

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