Falagas ME, Kouranos VD, Arencibia-Jorge R, Karageorgopoulos DE, Drosos E. "Comparison of SCImago journal rank indicator with journal impact factor more options " FASEB JOURNAL 22(8): 2623-2628 , August 2008
Eugene Garfield
garfield at CODEX.CIS.UPENN.EDU
Thu Dec 17 17:37:27 EST 2009
E-mail Addresses: m.falagas at aibs.gr
TITLE : Comparison of SCImago journal rank indicator with journal impact
factor more options
Author(s): Falagas ME (Falagas, Matthew E.)1,2,3, Kouranos VD (Kouranos,
Vasilios D.)1, Arencibia-Jorge R (Arencibia-Jorge, Ricardo)4,
Karageorgopoulos DE (Karageorgopoulos, Drosos E.)1
Source: FASEB JOURNAL Volume: 22 Issue: 8 Pages: 2623-2628
Published: AUG 2008
Times Cited: 7 References: 41 Citation Map
Abstract: The application of currently available sophisticated algorithms
of citation analysis allows for the incorporation of the "quality" of
citations in the evaluation of scientific journals. We sought to compare
the newly introduced SCImago journal rank (SJR) indicator with the journal
impact factor ( IF). We retrieved relevant information from the official
Web sites hosting the above indices and their source databases. The SJR
indicator is an open-access resource, while the journal IF requires paid
subscription. The SJR indicator ( based on Scopus data) lists considerably
more journal titles published in a wider variety of countries and
languages, than the journal IF ( based on Web of Science data). Both
indices divide citations to a journal by articles of the journal, during a
specific time period. However, contrary to the journal IF, the SJR
indicator attributes different weight to citations depending on
the "prestige" of the citing journal without the influence of journal self-
citations; prestige is estimated with the application of the PageRank
algorithm in the network of journals. In addition, the SJR indicator
includes the total number of documents of a journal in the denominator of
the relevant calculation, whereas the journal IF includes only "citable"
articles ( mainly original articles and reviews). A 3-yr period is analyzed
in both indices but with the use of different approaches. Regarding the top
100 journals in the 2006 journal IF ranking order, the median absolute
change in their ranking position with the use of the SJR indicator is 32
(1st quartile: 12; 3rd quartile: 75). Although further validation is
warranted, the novel SJR indicator poses as a serious alternative to the
well-established journal IF, mainly due to its openaccess nature, larger
source database, and assessment of the quality of citations.
Document Type: Article
Language: English
Reprint Address: Falagas, ME (reprint author), Alfa Inst Biomed Sci, 9
Neapoleos St, Maroussi 15123, Greece
Addresses:
1. AIBS, Athens, Greece
2. Tufts Univ, Sch Med, Dept Med, Boston, MA 02111 USA
3. Henry Dunant Hosp, Dept Med, Athens, Greece
4. Natl Ctr Sci Res, Network Scientometr Studies Higher Educ, Havana 6880,
Cuba
E-mail Addresses: m.falagas at aibs.gr
Publisher: FEDERATION AMER SOC EXP BIOL, 9650 ROCKVILLE PIKE, BETHESDA, MD
20814-3998 USA
IDS Number: 332NI
ISSN: 0892-6638
DOI: 10.1096/fj.08-107938
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