The number of clusters is NOT consistent

Computing metrics, community detection and data handling
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farscape2012
Posts:7
Joined:07 Aug 2012 13:04
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The number of clusters is NOT consistent

Post by farscape2012 » 28 Nov 2012 12:49

I found that the number of clusters was always changing when I reload the graph and ran modulity function.

Why do this happen ? Did anyone find similar issue?

pegerp
Posts:124
Joined:21 Dec 2011 17:10
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Re: The number of clusters is NOT consistent

Post by pegerp » 28 Nov 2012 13:41

Hello farscape.

You mean modularity. There is earlier discussion about this at http://forum.gephi.org/viewtopic.php?f=32&t=2038&p=7062. The modularity computation algorithm uses approximation methods which is why the results may vary between different runs of the algorithm

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