SJR Portal

[Loet Leydesdorff]

Dear Felix, 
 
I could not resist the temptation to correlate rank orders of the 229
countries for the different indicators. The results are as follows:
 
 
 
Spearman’s Rho Correlations 



 

 

Citable Documents

Cites

Self-Cites

Non-self cites

Cites per Doc

H index


Citable Documents

Correlation Coefficient

1.000

.945(**)

.956(**)

.860(**)

.113

.958(**)


 

Sig. (2-tailed)

.

.000

.000

.000

.088

.000


 

N

229

229

229

229

229

229


Cites

Correlation Coefficient

.945(**)

1.000

.960(**)

.957(**)

.236(**)

.971(**)


 

Sig. (2-tailed)

.000

.

.000

.000

.000

.000


 

N

229

229

229

229

229

229


Self-Cites

Correlation Coefficient

.956(**)

.960(**)

1.000

.873(**)

.188(**)

.970(**)


 

Sig. (2-tailed)

.000

.000

.

.000

.004

.000


 

N

229

229

229

229

229

229


Non-self cites

Correlation Coefficient

.860(**)

.957(**)

.873(**)

1.000

.245(**)

.891(**)


 

Sig. (2-tailed)

.000

.000

.000

.

.000

.000


 

N

229

229

229

229

229

229


Cites per Doc

Correlation Coefficient

.113

.236(**)

.188(**)

.245(**)

1.000

.277(**)


 

Sig. (2-tailed)

.088

.000

.004

.000

.

.000


 

N

229

229

229

229

229

229


H index

Correlation Coefficient

.958(**)

.971(**)

.970(**)

.891(**)

.277(**)

1.000


 

Sig. (2-tailed)

.000

.000

.000

.000

.000

.


 

N

229

229

229

229

229

229

**  Correlation is significant at the 0.01 level (2-tailed).

 

The significances are perhaps generated by the large N. As can be expected
citations and publications are highly correlated as indicators at this level
of aggregation. These indicators are also highly correlated with the
H-index, but much less so with c/p. Some small countries (notably islands)
are high on this indicator, but also the Switzerland, the USA, the
Scandinavian countries and the Netherlands:

 

1.	British Indian Ocean Territory
2.	United States Minor Outlying Islands
3.	Bermuda
4.	Faroe Islands
5.	Guinea-Bissau
6.	San Marino
7.	Panama
8.	Haiti
9.	Gambia
10.	Virgin Islands (British)
11.	Switzerland
12.	Saint Lucia
13.	Iceland
14.	United States
15.	Denmark
16.	Netherlands
17.	Seychelles
18.	Sweden
19.	Finland
20.	Montserrat
21.	Canada
22.	United Kingdom
23.	Greenland
24.	Belgium
25.	Israel

It provides a bit of a different perspective on the "wealth of nations",
doesn't it?

With best wishes, 

Loet



________________________________

Loet Leydesdorff
Amsterdam School of Communications Research (ASCoR),
Kloveniersburgwal 48, 1012 CX Amsterdam.
Tel.: +31-20- 525 6598; fax: +31-20- 525 3681
loet at leydesdorff.net ; http://www.leydesdorff.net/



> -----Original Message-----
> From: ASIS&T Special Interest Group on Metrics
> [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Félix de Moya Anegón
> Sent: Saturday, November 24, 2007 7:04 PM
> To: SIGMETRICS at LISTSERV.UTK.EDU
> Subject: [SIGMETRICS] SJR Portal
>
> Adminstrative info for SIGMETRICS (for example unsubscribe):
> http://web.utk.edu/~gwhitney/sigmetrics.html
>
> Dear collegue,
>
> We are very glad to announce the launch  of SJR (SCImago
> Journal & Country
> Rank) portal.
> SJR portal is based on the Scopus® data and include the
> SCImago Journal
> Rank Indicator. This portal makes  rankings by subject areas
> or subject
> categories showing  the visibility of journals and countries through
> scientific indicators like SJR, H-index, Total docs., Total
> refs., Total
> cites, Citable docs., Cites per docs., Self-citation, etc.,
> since 1996.
> These indicators have been calculated from the information 
> exported from
> the Scopus® database on March 2007 and will be updated
> periodically. For
> this reason some of the figures showed in the SJR portal and
> Scopus® may
> be not match. The coverage period at this moment of country
> and journal
> indicators is  from 1996 to 2006.
>
> The platform  is freely available at: http://www.scimagojr.com
>
> Please, any comments or suggestions will be welcomed.
>
> Best wishes
>
>
> *******************************
> Félix de Moya Anegón
> http://www.ugr.es/~felix/
> Grupo SCIMAGO
> http://www.scimago.es
> http://www.atlasofscience.net
> Universidad de Granada
> *******************************
> 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.asis.org/pipermail/sigmetrics/attachments/20071130/e16d4346/attachment.html>