Eigenfactor and article influence scores in the Journal Citation Reports
| Date | 20 April 2010 |
| Published date | 20 April 2010 |
| Pages | 339-348 |
| DOI | https://doi.org/10.1108/14684521011037034 |
| Author | Péter Jacsó |
| Subject Matter | Information & knowledge management,Library & information science |
SAVVY SEARCHING
Eigenfactor and article influence
scores in the Journal Citation
Reports
Pe
´ter Jacso
´
University of Hawaii, Honolulu, Hawaii, USA
Abstract
Purpose – This sequel to the earlier testing and evaluation of the five-year Journal Impact Factor
(JIF-5) in the enhanced version of the Journal Citation Reports (JCR) (released in January and July 2009
for the 2007 and 2008 journal collections, respectively) seeks to assess and compare the impact on the
ranking of journals by two other performance indicators.
Design/methodology/approach – Both the Eigenfactor Score (EFS) and the Article Influence Score
(AIS) use a five-year target window in the algorithm to quantify the scholarly impact at the overall
journal level and at the article level, respectively.
Findings – The paper examines how the rank positions of 52 library and information science
journals change when the set of journals are ranked by the Eigenfactor metrics in relation to the JIF-5
indicator.
Originality/value – The principle behind Google’s PageRank is where a web page or site got ranked
in the search results based not merely on the number of incoming links, but also on the status/prestige
of the linking sites based on the PageRank scores of those linking sites. This is a recursively calculated
permanent value until the next year’s edition.
Keywords Influence, Information science, Serials,Eigenvalues and eigenfunctions,Libraries
Paper type Literature review
This sequel to the earlier testing and evaluation of the five-year Journa l Impact Factor
(JIF-5) in the enha nced version of the Journal Citation Reports (JCR) (released in
January and July 2009 for the 2007 and 2008 journal collections, respectively) assesses
and compares the impact on the ranking of journals by two other performance
indicators. Both the Eigenfactor Score (EFS) and the Article Influence Score (AIS) use a
five-year target window in the algorithm to quantify the scholarly impact at the overall
journal level and at the article level, respectively. This issue examines how the rank
positions of 52 library and information science journals change when the set of journals
are ranked by the Eigenfactor metrics in relation to the JIF-5 indicator.
Background
The JCR have been available for nearly 40 years if we count the print, microfiche,
CD-ROM and online formats. The JCR and the traditional Journal Impact Factor based
on a two-year target window ( JIF-2) have been controversial but have also been widely
(if not always wisely) used directly or as a proxy for a variety of purposes, ranging
from library collection development to evaluating the research quality of college
departments, institutions and countries, to making decisions in tenure, promotion and
grant applications.
The current issue and full text archive of this journal is available at
www.emeraldinsight.com/1468-4527.htm
Eigenfactor and
article influence
scores
339
Online Information Review
Vol. 34 No. 2, 2010
pp. 339-348
qEmerald Group Publishing Limited
1468-4527
DOI 10.1108/14684521011037034
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