Gephi forums

Concerning speed: I do not know how Louvain is implemented in Pajek. In Gephi, it is not as efficient as it could since the whole graph is copied and the algorithm works on its own copy of the graph. Another optimisation is to stop the algorithm when the modularity does not raise of more than epsilo...

Hi,

There is no way to directly use the modularity. One good layout if you want to show the cluster of your graph is OpenOrd, available in the plugins.

Hi,

It is described in :
R. Lambiotte, J.-C. Delvenne, M. Barahona Laplacian Dynamics and Multiscale Modular Structure in Networks 2009


It is the simple version which just add a *t somewhere in the modularity definition.

Hi, Currently, Gephi does not handle directions and weights. I am working on using weight for modularity, it needs debugging but I will do my best to finish it for the next release. It is more difficult for directed graphs, because modularity is not defined for them. Community detection is IMHO stil...

Hello, The whole gephi source is at https://launchpad.net/gephi/+download You can also browse it at http://bazaar.launchpad.net/~gephi.team/gephi/0.8/files Finally, modularity code is at http://bazaar.launchpad.net/~gephi.team/gephi/0.8/view/head:/StatisticsPlugin/src/org/gephi/statistics/plugin/Mod...

It is more complicated I think. "First level" is imprecise, it could be the first level found by the algorithm (the one whith lowest modularity, but the highest number of communities) or the level the closest of the root (the one with the lowest number of communities and the highest modularity). It ...

It seems you are using Gephi 0.7 which contains a bug in the algorithm to count triangles. It should be already solved in gephi 0.8 which gives 0.267 for your graph and produces also the number of triangles a node is involved in to verify.

It is as Luizibeiro said. The plugin uses java scripting api and jython to execute the script. It builds one object of type ScriptExporter and push it into the script with the name gephi. This object gives access to Lookup and models API of gephi to the script, and thus the script can do almost ever...

Hello, First release of the plugin! Documentation and examples: http://wiki.gephi.org/index.php/Script_plugin nbm: http://perso.crans.org/aynaud/software/org-gephi-scriptconsole.nbm sources: http://perso.crans.org/aynaud/software/sources.zip These are temporary. I use this because the gephi website ...

Hello, Sorry to appear like that in the thread, I do not read gephi forum very regularly. I am currently writing a similar python plugin on my spare time and the main difficulty is clearly not the language of the console but the api. Writting a console using one JSR 223 language is done(I use now jy...