|
Title
|
|
|
|
Characterizations of the generalized Wu- and Kosmulski-indices in Lotkaian systems
|
|
|
Author
|
|
|
|
|
|
|
Abstract
|
|
|
|
| We define the generalized Wu- and Kosmulski-indices, allowing for general parameters of multiplication or exponentiation. We then present formulae for these generalized indices in a Lotkaian framework. Next we characterise these indices in terms of their dependence on the quotient of the average number of items per source in the m-core divided by the overall average (m is any generalized Wu- or Kosmulski-index). As a consequence of these results we show that the fraction of used items (used in the definition of m) in the m-core is independent of the parameter and equals one divided by the overall average. |
|
|
|
Language
|
|
|
|
English
|
|
|
Source (journal)
|
|
|
|
Journal of informetrics. - Amsterdam
|
|
|
Publication
|
|
|
|
Amsterdam
:
2011
|
|
|
ISSN
|
|
|
|
1751-1577
|
|
|
DOI
|
|
|
|
10.1016/J.JOI.2011.03.006
|
|
|
Volume/pages
|
|
|
|
5
:3
(2011)
, p. 439-445
|
|
|
ISI
|
|
|
|
000291032500012
|
|
|
Full text (Publisher's DOI)
|
|
|
|
|
|