FW: GENERAL: accuracy of Thomson data

Loet Leydesdorff loet at LEYDESDORFF.NET
Tue Dec 18 14:50:06 EST 2007

Dear Christina and colleagues:


Incorrect journal abbreviations and non-ISI sources


J Phys Chem-US


Phys Rev


Biochim Biophys Acta




Am J Physiol




Am J Med Genet


J Bone Joint Surg


J Biomed Mater Res


J Chem Soc Perk T 1


Am Rev Respir Dis


P Soc Photo-Opt Ins


Acta Metall Mater


Mmwr-Morbid Mortal W


Table 4: Non-ISI sources and incorrect journal abbreviations with more than
10,000 citations in the JCR 2005.

"With its 54,139 citations, the J Phys Chem-US would belong to the top-50
journals of the database if it were included. However, this journal is
included in the ISI-database under the abbreviations J Phys Chem A and J
Phys Chem B with 32,086 and 59,826 citations, respectively. For some
journals, however, the different spellings in the references may have large
implications. Bornman et al. (2007, at p. 105) found 21.5% overestimation of
the impact factor of Angewandte Chemie in 2005 because of authors providing
references to both the German and international editions of this journal
(Marx, 2001)." 
Source: " <blocked::http://www.leydesdorff.net/cit_indicators/index.htm>
Caveats for the Use of Citation Indicators in Research and Journal
Evaluations," Journal of the American Society for Information Science and
Technology, February 2008 (forthcoming; available as Early View). 
With best wishes, 
Loet Leydesdorff

Loet Leydesdorff 
Amsterdam School of Communications Research (ASCoR)
Kloveniersburgwal 48, 1012 CX Amsterdam
 <blocked::mailto:loet at leydesdorff.net> loet at leydesdorff.net ;
<blocked::http://www.leydesdorff.net/> http://www.leydesdorff.net/ 

Visiting Professor,  <blocked::http://www.istic.ac.cn/Eng/brief_en.html>
ISTIC, Beijing; Honorary Fellow  <blocked::http://www.sussex.ac.uk/spru/>
SPRU, University of Sussex 
Now available:
129378> The Knowledge-Based Economy: Modeled, Measured, Simulated, 385 pp.;
US$ 18.95;
126956> The Self-Organization of the Knowledge-Based Society ;
126816> The Challenge of Scientometrics


> -----Original Message-----
> From: ASIS&T Special Interest Group on Metrics
> [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Pikas, Christina K.
> Sent: Tuesday, December 18, 2007 3:37 PM
> Subject: [SIGMETRICS] FW: GENERAL: accuracy of Thomson data
> Adminstrative info for SIGMETRICS (for example unsubscribe):
> http://web.utk.edu/~gwhitney/sigmetrics.html
> Interesting article -- this came across another listserv I'm on. 
> - Calls for an audit of WoS data. 
> - Suggests median measure
> - Points to errors caused by article type designations.
> Christina K. Pikas, MLS
> R.E. Gibson Library & Information Center
> The Johns Hopkins University Applied Physics Laboratory
> Voice  240.228.4812 (Washington), 443.778.4812 (Baltimore)
> Fax 443.778.5353
> -----Original Message-----
> From: PAMnet [mailto:PAMNET at listserv.nd.edu] On Behalf Of
> Carol Hutchins
> Sent: Tuesday, December 18, 2007 9:06 AM
> To: PAMNET at listserv.nd.edu
> Subject: GENERAL: accuracy of Thomson data
> The Suber blog has a pointer to an interesting editorial in
> the J. Cell
> Biology related to how articles are counted by Thomson ISI.
> Rather than repost here, I'll give the reference to JCB.  (Worthwhile
> for the cartoon alone!)
> http://www.jcb.org/cgi/content/full/179/6/1091
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