Isidro F. Aguillo isidro.aguillo at CCHS.CSIC.ES
Wed Jul 9 03:40:36 EDT 2014

Dear colleagues,

The list analyzed by this paper is very important as it is one of the 
key variables used in ARWU, the Shanghai Ranking. The authors point out 
to problems in the "secondary affiliations" of some of these HCR, but 
dismiss it as according to the preprint ARWU is considering only primary 
affiliations. But after checking the published methodology in the ARWU 

the following paragraph appears:

"The number of Highly Cited Researchers in 21 subject categories. These 
individuals are the most cited within each category. If a Highly Cited 
Researcher has two or more affiliations, he/she was asked to estimate 
his/her weights (or number of weeks) for each affiliation. More than 2/3 
of those multi-affiliated Highly Cited Researchers provided such 
estimations and their affiliations receive the weights accordingly. For 
those who did not answer, their first affiliation is given a weight of 
84% (average weight of the first affiliations for those who replied) and 
the rest affiliations share the remaining 16% equally".

On 09/07/2014 9:21, Bornmann, Lutz wrote:
>   Which of the world's institutions employ the most highly cited
>   researchers? An evaluation of the data from
> Lutz Bornmann 
> <>, Johann 
> Bauer <>
> A few weeks ago, Thomson Reuters published a list of the highly cited 
> researchers worldwide ( Since the data is freely 
> available for downloading and includes the names of the researchers' 
> institutions, we produced a ranking of the institutions on the basis 
> of the number of highly cited researchers per institution.
> Available at:
> ---------------------------------------
> Dr. Dr. habil. Lutz Bornmann
> Division for Science and Innovation Studies
> Administrative Headquarters of the Max Planck Society
> Hofgartenstr. 8
> 80539 Munich
> Tel.: +49 89 2108 1265
> Mobil: +49 170 9183667
> Email: bornmann at <mailto:bornmann at>
> WWW: <>
> ResearcherID:
> ResearchGate:


Isidro F. Aguillo, HonDr.
The Cybermetrics Lab, IPP-CSIC
Grupo Scimago
Madrid. SPAIN

isidro.aguillo at
ORCID: 0000-0001-8927-4873
ResearcherID: A-7280-2008
Scholar Citations: SaCSbeoAAAAJ
Twitter: @isidroaguillo
Rankings Web:


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