AW: [SIGMETRICS] New paper

Bornmann Lutz lutz.bornmann at GESS.ETHZ.CH
Thu Jul 16 03:49:53 EDT 2009

Yes, this is always a problem if you use bibliometric data. Internationally well known scientists are always most suitable for bibliometric analyses. The more publication and citation data the better the analyses.


-----Ursprüngliche Nachricht-----
Von: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at LISTSERV.UTK.EDU] Im Auftrag von K S Chudamani
Gesendet: Donnerstag, 16. Juli 2009 09:42
Betreff: Re: [SIGMETRICS] New paper

The proposal may be correct. But, in practice, lot of the citation in 
local conferences, etc. go unnoticed. This may be most suitable for 
prolific internationally well known authors


On Thu, 16 Jul 2009, Bornmann Lutz wrote:

> Adminstrative info for SIGMETRICS (for example unsubscribe):
> Dear colleague,
> Please find attached a recently published paper (pdf-file) that might be
> of interest to you:
> Bornmann, L. & Daniel, H.-D. (2009). Universality of citation
> distributions - A validation of Radicchi et al.'s relative indicator cf
> = c/c0 at the micro level using data from chemistry. Journal of the
> American Society for Information Science and Technology, 60(8),
> 1664-1670.
> Abstract: In a recently published PNAS paper, Radicchi, Fortunato, and
> Castellano (2008) propose the relative indicator cf as an unbiased
> indicator for citation performance across disciplines (fields, subject
> areas). To calculate cf , the citation rate for a single paper is
> divided by the average number of citations for all papers in the
> discipline in which the single paper has been categorized. cf values are
> said to lead to a universality of discipline-specific citation
> distributions. Using a comprehensive dataset of an evaluation study on
> Angewandte Chemie International Edition (AC-IE), we tested the advantage
> of using this indicator in practical application at the micro level, as
> compared with (1) simple citation rates, and (2) z-scores, which have
> been used in psychological testing for many
> years for normalization of test scores. To calculate zscores, the mean
> number of citations of the papers within a discipline is subtracted from
> the citation rate of a single paper, and the difference is then divided
> by the citations' standard deviation for a discipline. Our results
> indicate that z-scores are better suited than cf values to produce
> universality of discipline-specific citation distributions.
> Sincerely yours,
> Lutz Bornmann
> ------------------------------------------------------------------------
> -------------------------------------
> Dr. Lutz Bornmann
> ETH Zurich, D-GESS
> Professorship for Social Psychology and Research on Higher Education
> Zaehringerstr. 24 / ZAE
> CH-8092 Zurich
> Phone: 0041 44 632 48 25
> Fax: 0041 44 632 12 83
> <>
> bornmann at <mailto:bornmann at>

This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.

More information about the SIGMETRICS mailing list