Current self-citation rates

[Loet Leydesdorff]

Dear Jim, 

 

I agree. 

In terms of journal self-citation rates, the following on the basis of JCR
2012:

 


Statistics


 

Self-citations as percentage of references

Self-citations as percentage of citations


N

Valid

10611

10936


Missing

325

0


Mean

9.25841

11.73770


Median

6.13000

7.97500


Std. Deviation

10.245547

12.145664


Variance

104.971

147.517

 

16 journals are exclusively referencing within the journal; 2 journals are
exclusively cited within the journal.

 

Best,

Loet

 

  _____  

Loet Leydesdorff 

Professor Emeritus, University of Amsterdam
Amsterdam School of Communications Research (ASCoR)

 <mailto:loet at leydesdorff.net> loet at leydesdorff.net ;
<http://www.leydesdorff.net/> http://www.leydesdorff.net/ 
Honorary Professor,  <http://www.sussex.ac.uk/spru/> SPRU, University of
Sussex; 

Guest Professor  <http://www.zju.edu.cn/english/> Zhejiang Univ., Hangzhou;
Visiting Professor,  <http://www.istic.ac.cn/Eng/brief_en.html> ISTIC,
Beijing;

Visiting Professor,  <http://www.bbk.ac.uk/> Birkbeck, University of London;


 <http://scholar.google.com/citations?user=ych9gNYAAAAJ&hl=en>
http://scholar.google.com/citations?user=ych9gNYAAAAJ&hl=en  



 

From: ASIS&T Special Interest Group on Metrics
[mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of James Hartley
Sent: Friday, April 04, 2014 2:27 PM
To: SIGMETRICS at LISTSERV.UTK.EDU
Subject: Re: [SIGMETRICS] Current self-citation rates

 


We need to distinguish between journal self citation rates and author self
citation rates..

 

Jim Hartley

 

From: ASIS&T Special Interest Group on Metrics [
<mailto:SIGMETRICS at LISTSERV.UTK.EDU> mailto:SIGMETRICS at LISTSERV.UTK.EDU] On
Behalf Of Marie McVeigh
Sent: 04 April 2014 12:45
To:  <mailto:SIGMETRICS at LISTSERV.UTK.EDU> SIGMETRICS at LISTSERV.UTK.EDU
Subject: Re: [SIGMETRICS] Current self-citation rates

 

http://web.utk.edu/~gwhitney/sigmetrics.html 

Here is an old (but more recent than Seglen) reference that will give you
some sense of the distribution of self-citation rates in the Science edition
of JCR:   <http://wokinfo.com/essays/journal-self-citation-jcr/>
http://wokinfo.com/essays/journal-self-citation-jcr/  

 

As a point of interest and comparison with Loet's number, I would suggest
also looking at the average journal-level self-citation rate.  With the
following in mind: a journal with a very low overall citation count can have
a high % of journal self-citations without this representing any problematic
pattern.   That's why multiple criteria other than journal self-citation
rate are used to consider suppression from the JCR (see:
<http://wokinfo.com/media/pdf/jcr-suppression.pdf>
http://wokinfo.com/media/pdf/jcr-suppression.pdf)

 

Marie E McVeigh

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.asis.org/pipermail/sigmetrics/attachments/20140404/d8a53e49/attachment.html>