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How to detect scale free networks

Computing metrics, community detection and data handling

How to detect scale free networks

Postby cinus » 25 Sep 2013 17:27

I am working on a hyperlink network of 554 websites. I would like to know if there is a statistic or a plugin that can tell me if this network is scale free, and how much it adheres to a scale free model in comparison with the average web. I have the impression that this network is not scale free at all, but at the moment I can affirm that only through visualization.
cinus
 
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Re: How to detect scale free networks

Postby admin » 25 Sep 2013 19:17

Of course you can't through visualization, and it's even really difficult with statistical measures.

See the most reliable methods here:
http://tuvalu.santafe.edu/~aaronc/powerlaws/
http://vserver1.cscs.lsa.umich.edu/~crs ... g/491.html
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Re: How to detect scale free networks

Postby cinus » 26 Sep 2013 10:27

It seems feasible with python, too, but maybe I am on the wrong way.
So, can I ask you a suggestion? I have this network of 554 websites, and I have the impression that the nodes are interconnected in a stronger way in comparison with what i expected: they don't appear (from visualization) to form communities, but a dense network of communication instead, at the periphery of the network,too. It is because of that that I though about a scale free test. What would you do, instead, to quickly test if the network is more horizontal, with a not so fragmented periphery? In terms of statistics more than of visualization, if possible.
cinus
 
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