Document Server@UHasselt >
Research >
Research publications >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/10288

Title: The distribution of the uncitedness factor and its functional relation with the impact factor
Authors: Egghe, Leo
Issue Date: 2009
Citation: Larsen, B. & Leta, J. (Ed.) Proceedings of the 12th International Conference of the International Society for Scientometrics and Informetrics. p. 22-30.
Abstract: The uncitedness factor of a journal is its fraction of uncited articles. Given a set of journals (e.g. in a field) we can determine the rank-order distribution of these uncitedness factors. Hereby we use the Central Limit Theorem which is valid for uncitedness factors since it are fractions, hence averages. A similar result was proved earlier for the impact factors of a set of journals. Here we combine the two-rank order distributions, hereby eliminating the rank, yielding the functional relation between the impact factor and the uncitedness factor. It is proved that the decreasing relation has an S-shape: first convex then concave and that the inflexion point is in the point (μ',μ) where μ is the average of the impact factors and μ' is the average of the uncitedness factors.
URI: http://hdl.handle.net/1942/10288
ISI #: 000271081000003
Category: C1
Type: Proceedings Paper
Validation: ecoom, 2010
Appears in Collections: Research publications

Files in This Item:

Description SizeFormat
N/A271.59 kBAdobe PDF
N/A261.72 kBAdobe PDF

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.