Document (#39357)

Author

Small, H.G.

Title

Structural dynamics of scientific literature

Source

Knowledge organization. 42(2015) no.4, S.251-259

Year

2015

Abstract

A methodology is described for the structural analysis of scientific literature using the frequency with which items have been cited together (cocitation) as the measure of association between highly cited documents. A clustering procedure applied to these data results in the formation of groups of documents identifiable as research specialties. The principal concern of the paper is to analyze patterns of change in these structures from year to year, using data from the 1973 and 1974 Science Citation Index. The rate of change of clusters and the document turnover in clusters suggest that scientific research fronts are changing very rapidly. Change in the relationships among specialties is also observed by comparing configurations of clusters obtained by multidimensional scaling. By rotation of successive M-D-SCAL plots to a least squares congruence for corresponding clusters, it is possible to show how the clusters have "moved" relative to one another from one year to the next.

Content

Reprinted in digitized form from: International Classification. 3(1976) no.2, S.67-74. Vgl.: http://www.ergon-verlag.de/isko_ko/downloads/ko_42_2015_4.

Theme

Informetrie

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