Keywords given by authors of scientific articles in database descriptors

Gil-Leiva, Isidoro and Alonso-Arroyo, Adolfo Keywords given by authors of scientific articles in database descriptors. Journal of the American Society for Information Science and Technology, 2007, vol. 58, n. 8, pp. 1175-1187. [Journal article (Paginated)]

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English abstract

This paper analyses the keywords given by authors of scientific articles and the descriptors assigned to the articles in order to ascertain the presence of the keywords in the descriptors. 640 INSPEC, CAB abstracts, ISTA and LISA database records were consulted. After detailed comparisons it was found that keywords provided by authors have an important presence in the database descriptors studied, since nearly 25% of all the keywords appeared in exactly the same form as descriptors, with another 21% while normalized, are still detected in the descriptors. This means that almost 46% of keywords appear in the descriptors, either as such or after normalization. Elsewhere, three distinct indexing policies appear, one represented by INSPEC and LISA (indexers seem to have freedom to assign the descriptors they deem necessary); another is represented by CAB (no record has fewer than four descriptors and, in general, a large number of descriptors is employed; in contrast, in ISTA, a certain institutional code towards economy in indexing, since 84% of records contain only four descriptors.

Spanish abstract

Se analizan las palabras clave proporcionadas por los autores de los artículos científicos y los descriptores asignados a esos artículos para averiguar la presencia de las mismas en los descriptores. Para ello, se manejaron 640 registros de las Bases de datos INSPEC, CAB Abstracts, ISTA y LISA. Una vez realizadas minuciosamente las comparaciones se concluyó que las palabras clave de los autores tienen una presencia importante en los descriptores de las bases de datos estudiadas, ya que el 25% de todas las palabras clave aparecen exactamente igual como descriptores; y otro 21% aunque ha sufrido un proceso de normalización se sigue detectando en los descriptores, lo que propicia que el 45% de las palabras clave aparezcan exactas o normalizadas como descriptores. Por otra parte, se observa lo que parecen tres políticas de indización distintas, una representada por INSPEC y LISA (los indizadores parecen tener libertad para asignar los descriptores que estimen necesarios); otra por CAB (ningún registro posee menos de cuatro descriptores y en general, se emplea un cuantioso número de descriptores); y por el contrario, en ISTA se percibe cierta consigna institucional hacia el ahorro en la indización, ya que el 84% de los registros tiene sólo cuatro descriptores.

Item type: Journal article (Paginated)
Keywords: Descriptors ; Indexing ; Automatic indexing ; Journal papers ; Databases ; Comparative study ; INSPEC ; CAB ; ISTA ; LISA Descriptores ; Indización ; Indización automática ; Artículos de revista ; Bases de datos ; Estudio comparativo ; INSPEC ; CAB ; ISTA ; LISA.
Subjects: I. Information treatment for information services > IB. Content analysis (A and I, class.)
Depositing user: Isidoro Gil Leiva
Date deposited: 10 Jun 2008
Last modified: 02 Oct 2014 12:11
URI: http://hdl.handle.net/10760/11726

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