Title: Theoretical and Empirical Studies of the Tail of Scientometric Distributions
Authors: Glänzel, Wolfgang
Issue Date: 1988
Publisher: Elsevier Science Publisher
Host Document: Informetrics 87/88 pages:75-83
Conference: Proceedings of the 1st International Conference on Bilbliometrics and Information Retrieval location:Diepenbeek (Belgium) date:24-28 August 1987
Abstract: The distributions of non-negative random variables occurring in scientometrics are said to have a proper tail if they asymptotically obey "Zipf's Law", i.e., if lim (1-F(k))*k^alpha = const for some real alpha > 0 where F denotes the cumulative distribution. The tail of scientometric distributions has a particular significance because it generally contains the most "prominent" elements of the population (e.g. highest cited papers or most productive authors). In addition, the tail parameter, alpha, is a sensitive indicator of several fundamental features of the whole distribution. It is shown that, among others, the tail parameter governs order and rank statistics. New estimation methods of alpha as well as statistical tests for extreme values and ranked tail elements are developed. The methods are illustrated on empirical samples of citation rates and publication activity.
ISBN: 0-444-70425-6
Publication status: published
KU Leuven publication type: IHb
Appears in Collections:Non-KU Leuven Association publications

Files in This Item:
File Description Status SizeFormat
theoretical and empirical studies.pdf Published 223KbAdobe PDFView/Open Request a copy

These files are only available to some KU Leuven Association staff members


All items in Lirias are protected by copyright, with all rights reserved.