[Fis] THE FOURTH GREAT DOMAIN OF SCIENCE: INFORMATIONAL?

[Loet Leydesdorff]

Dear Soren, 

 

We formulated at p. 591 of: Loet Leydesdorff, Stephen Carley, and Ismael
Rafols, Global Maps of Science based on the new Web-of-Science Categories,
<http://arxiv.org/ftp/arxiv/papers/1202/1202.1914.pdf> Scientometrics 94(2)
(2013) 589-593; <open access
<http://link.springer.com/article/10.1007%2Fs11192-012-0784-8> >  [software
<http://www.leydesdorff.net/overlaytoolkit/> ], as follows: 

 

“The organization into these four groups (biomedical, physical,
environmental, and social sciences) is now provided as another (optional)
partition within the Pajek (.paj) file containing the base map, and is also
made available as input to VOSviewer.”

 

The partitioning into four and six domains was generated by my co-authors. I
prefer to use the 19 disciplines on the basis of factor analysis of the
matrix. However, one can ask for a four-factor solution, and then one is
free to designate the factors.

 

In the figure below, I overlaid Pedro’s 23 publications included in WoS in
terms of these four major domains. Making such portfolio overlays is the
main purpose of the technique.

 



 

The nodes are sized with the log(n+1); n is the number of publications. (The
“+1” prevents single publications from disappearing.)

 

Best,

Loet

 

PS. This is my second mailing during this week. L.

 

 

  _____  

Loet Leydesdorff 

Emeritus University of Amsterdam
Amsterdam School of Communication 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

 

 

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