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many communities with a single node #2

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seinecle opened this Issue Jan 31, 2019 · 1 comment

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@seinecle @vtraag
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seinecle commented Jan 31, 2019

The algo finds many communities which are made of just one node, even when these nodes are not isolated. That is not very useful and actually on large networks, this creates hundreds of communities which make the results impractical to process further.
Suggestion: it could be left to the user not to create communities that have a member count < n?

@vtraag vtraag referenced this issue Jan 31, 2019

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Leiden algo: many communities with a single node #203

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vtraag commented Jan 31, 2019

Yes, that may be one possibility. I am not sure if Gephi offers the possibility of not assigning a node to a cluster, I'll check it out. We are usually also not interested in the small communities, and sometimes actually force these small communities back into larger communities. I'll think about how to proceed.

But regardless of the small communities, Gephi should not become slow as a result of it. Is it possible for you to share your data with me, so that I can replicate the problem? Feel free to mail them to me instead of posting them here.
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