Geometric journal impact factors correcting for individual highly cited articles

被引：59

作者：

Thelwall, Mike ^{[1
]}

Fairclough, Ruth ^{[1
]}

机构：

[1] Wolverhampton Univ, Stat Cybermetr Res Grp, Sch Math & Comp Sci, Wolverhampton WV1 1LY, W Midlands, England

来源：

JOURNAL OF INFORMETRICS | 2015年 / 9卷 / 02期

关键词：

Journal impact factors; Mendeley; Altmetrics; ACADEMIC JOURNALS; RANKINGS; SCIENCE; METRICS; INFORMATION; CITATIONS; ECONOMICS;

D O I：

10.1016/j.joi.2015.02.004

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Journal impact factors (JIFs) are widely used and promoted but have important limitations. In particular, JIFs can be unduly influenced by individual highly cited articles and hence are inherently unstable. A logical way to reduce the impact of individual high citation counts is to use the geometric mean rather than the standard mean in JIF calculations. Based upon journal rankings 2004-2014 in 50 sub-categories within 5 broad categories, this study shows that journal rankings based on JIF variants tend to be more stable over time if the geometric mean is used rather than the standard mean. The same is true for JIF variants using Mendeley reader counts instead of citation counts. Thus, although the difference is not large, the geometric mean is recommended instead of the arithmetic mean for future JIF calculations. In addition, Mendeley readership-based JIF variants are as stable as those using Scopus citations, confirming the value of Mendeley readership as an academic impact indicator. (c) 2015 Elsevier Ltd. All rights reserved.

引用

页码：263 / 272

页数：10

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