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Re: [igraph] signal diffusion and weighted networks

From: Hermann Norpois
Subject: Re: [igraph] signal diffusion and weighted networks
Date: Tue, 17 Mar 2015 14:14:09 +0100

Yes. I was not precise. I am not sure if diffusion is the correct term ... Imagine the edges are tubes and the weights are diameters and then you inject blue ink in vertex i the blue color will distribute according to the weighted edges (please forget the diluation effect). I wish to know what are the first 30 vertices that are affected. Thanks

2015-03-17 12:48 GMT+01:00 Tamas Nepusz <address@hidden>:

> I have a non-directed weighted network and I want to know: What are the
> neighboruing vertices of a certain vertex. Of course, I can use
> graph.neighborhood but it does not take into account that the edges are
> weighted. I am looking for a method that reflects how a signal "diffuses"
> if it starts at a certain vertex. Could anybody give me a hint?
Please provide a more detailed definition of what you mean by "diffusion" --
the neighborhoods of vertices do not change if the edges are weighted so I'm
pretty sure that you mean something else here and not just the neighboring


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