Literaturnachweis - Detailanzeige
Autor/in | Naranan, S. |
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Titel | “Power law” version of Bradford's law: Statistical tests and methods of estimation. |
Quelle | In: Scientometrics, (1989) 3-4, S.211-226
PDF als Volltext |
Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
ISSN | 0138-9130 |
DOI | 10.1007/BF02026411 |
Schlagwörter | Growth Rate; Relative Growth Rate; Likelihood Method; Maximum Likelihood Method; Integer Variable |
Abstract | Abstract Is is shown, using rigorous statistical tests, that the number of journals (J) carryingp papers in a given subject can be expressed as a simple power law functionJ(p)=K p−γ, K and γ being constants. The standard maximum likelihood method of estimating γ has been suitably modified to take acoount of the fact thatp is a discrete integer variable. The parameter γ entirely characterises the scatter of articles in journals in a given bibliography. According to a dynamic model proposed earlier by the author, γ is a measure of the relative growth rates of papers and journals pertaining to the subject. |
Erfasst von | OLC |
Update | 2023/2/05 |