Title




The distribution of the uncitedness factor and its functional relation with the impact factor


Author






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 rankorder 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 rankorder 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 Sshape: first convex, then concave and that the inflection 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. 


Language




English


Source (journal)




Scientometrics: an international journal for all quantitative aspects of the science of science and science policy.  Amsterdam


Publication




Amsterdam
:
2010


ISSN




01389130
[print]
15882861
[online]


Volume/pages




83
:3
(2010)
, p. 689695


ISI




000277418400007


Full text (Publisher's DOI)






Full text (publisher's version  intranet only)





