Structure multi-échelle de grands graphes de terrain

By Thomas Aynaud and Jean-Loup Guillaume

in Technique et Science Informatiques, vol. 30/2, pp. 137-154, 2011


Most complex networks can be divided into dense sub-graphs called communities. These communities may also be divided recursively producing a hierarchical structure of communities, summarized in a tree named dendrogram. In this article we analyze this structure extracted from several complex networks. First we study the shape of the tree and, in particular, communities imbrications. Then we show that an excessive decomposition of communities can result in meaningless communities. We propose a couple of approaches to solve this problem.

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