Collaboration network puzzle

Loet Leydesdorff loet at LEYDESDORFF.NET
Fri May 22 05:20:24 EDT 2015

Dear Gohar Feroz, 


We don’t know the subject, but if you have such a large cluster of 326 institutions, the network may be very globalized. 

Individuals can then team up within this internationalized and networked domain? 


Just a hypothesis. 






Loet Leydesdorff 

Emeritus University of Amsterdam
Amsterdam School of Communication Research (ASCoR)

 <mailto:loet at> loet at ;  <> 
Honorary Professor,  <> SPRU, University of Sussex; 

Guest Professor  <> Zhejiang Univ., Hangzhou; Visiting Professor,  <> ISTIC, Beijing;

Visiting Professor,  <> Birkbeck, University of London; 



From: ASIS&T Special Interest Group on Metrics [mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of Gohar F. Khan
Sent: Friday, May 22, 2015 8:58 AM
Subject: [SIGMETRICS] Collaboration network puzzle


Dear Colleagues:


Please help me solve the following puzzle.


Using the Web of Science publication data, I have constructed two networks, 1) author level collaboration network, and 2) institutional level collaboration networks. The publications are in a particular research field.   


The problem is that the author network is composed of several small disconnected clusters with largest component consisting of only 43 nodes or authors. However, the institutional level collaboration network is well connected with 326 institutions in a single component. 


I just wonder what could explain these differences? Normally, when I construct such networks, the institutional network is sparse as compared to the authors network, as all the publications (or nodes) from a particular institute are merged into a single node when creating an institutional level collaboration network. But, here it is the opposite. 


What could cause this to happen? Any ideas? 






Gohar Feroz Khan, PhD
Assistant Professor
Korea University of Technology & Education (KoreaTECH)

Stay tuned for my new book on  <> 7 Layers of s <> ocial media analytics to be available soon....

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