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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/3513

Title: On the influence of production on utilization functions - obsolescence or increased use
Authors: EGGHE, Leo
RAO, Ravichandra
ROUSSEAU, Ronald
Issue Date: 1995
Publisher: Kluwer Academic Publishers B.V.
Citation: SCIENTOMETRICS, 34(2). p. 285-315
Abstract: We study the influence of production on utilization functions. A concrete example of this is the influence of the growth of literature on the obsolescence (aging) of this literature. Here, synchronous as well as diachronous obsolescence is studied. Assuming an increasing exponential function for production and a decreasing one for aging, we show that, in the synchronous case, the larger the increase in production, the larger the obsolescence. In the diachronous case the opposite relation holds: the larger the increase in production the smaller the obsolescence rate. This has also been shown previously by Egghe but the present proof is shorter and yields more insight in the derived results. If a decreasing exponential function is used to model production the opposite results are obtained. It is typical for this study that there are two different time periods: the period of production (growth) and - per year appearing in the production period - the period of aging (measured synchronously and diachronously). The interaction of these periods is described via convolutions (discrete as well as continuous).
Notes: UNIV INSTELLING ANTWERP,INFORMAT & BIBLIOTHEEKWETENSCHAP,B-2610 WILRIJK,BELGIUM. DRTC,ISI,BANGALORE 56059,KARNATAKA,INDIA. KIHWV,B-8400 OOSTENDE,BELGIUM.EGGHE, L, LIMBURGS UNIV CENTRUM,UNIV CAMPUS,B-3590 DIEPENBEEK,BELGIUM.
URI: http://hdl.handle.net/1942/3513
DOI: 10.1007/BF02020425
ISI #: A1995TH59000008
ISSN: 0138-9130
Type: Journal Contribution
Appears in Collections: Research publications

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