Filters & questions

Computing metrics, community detection and data handling
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vieirae
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Filters & questions

Post by vieirae » 11 Nov 2013 19:37

Greetings:

I have three questions, If I may:

1) Is there available a document that explains all of the filtering tools in Gephi?
2) Please excuse the rudimentary nature of my question. What exactly is the partition count filter?
3) How might I filter specific betweenness centrality value ranges for communities? In other words, I wish to create a graph with the top six betweenness centrality nodes per each community. So, the ranges vary (rank ordered top six) by community. Any assistance would be greatly appreciated.

Thank you.
Ed

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seinecle
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Re: Filters & questions

Post by seinecle » 13 Nov 2013 23:13

Hi Ed,

1. Not to my knowledge. Trust me that's on a priority list somewhere.
2. It will filter out all nodes belonging to partitions that have less than n members (you decide what n is with a slider)
3. For such complex filtering queries I'd personally write a plugin for that, not expecting filters to be pwoerful enough in a near future to accomplish that. In contrast, that's trivial to realize in a plugin. That implies coding in Java and some time getting familiar with the way to code plugins, however. Sorry there is not a straightforward answer...

Best,

Clement

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seinecle
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Re: Filters & questions

Post by seinecle » 13 Nov 2013 23:15

PS: you can get a hint on what each filter does by selecting the filter with the mouse. Then you can hover on it with the mouse, and a one line description is displayed. That's how I got the explanation for the partition count filter - verifying then its functioning on Les Miserables.gexf! ;)

vieirae
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Re: Filters & questions

Post by vieirae » 30 Sep 2014 12:55

Clement:

I use Gephi for content analysis (text network analysis). I assume that edges are determined by contiguous placement of nodes or a 2 word (node) gap pass. Questions:

1) Can Gephi be modified to include a 5 word (node) gap as well so that the 2 and 5 word (node) passes are weighted? Also, would these two approaches have different modularity class results?
2) I assume that a directed or undirected graph will result in different modularity classes. Is this correct?

Thank you.

Ed

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seinecle
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Re: Filters & questions

Post by seinecle » 30 Sep 2014 19:46

Hi Ed,
I have difficulties understanding your question, because if this "gap pass" expression that I don't know. Can you possibly rephrase your problem in a different way? ;-) Thanks!
Best,
Clement

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seinecle
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Re: Filters & questions

Post by seinecle » 30 Sep 2014 19:47

Hi,
Also, open this question as a new issue, for clarity! (ie, not on this thread)

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Re: Filters & questions

Post by jmoyano » 02 Oct 2014 15:08

Hi,
How you work with "text network analysis"?, I have not found a plugin in this web.

I found two years ago (https://gephi.org/plugins/alchemyapi-plugin/) but now doesn't work

please, can you help me?

best regards

julio

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