Towards multi-ego-centered communities: a node similarity approach

Abstract : In this paper, we investigate the notion of ego-centred community structure, i.e., the community structure around a given node. We propose a new similarity measure between nodes based on opinion dynamics to study such a structure. We call it the carryover opinion. In addition to be parameter-free, the carryover opinion can be calculated in a very time-efficient way and can thus be used in very large graphs. We also go further in the idea of ego-centred communities by introducing the new concept of multi-ego-centred communities, i.e., focusing on the communities around a set of nodes rather than around a single node. A key idea is that, although one node generally belongs to numerous communities, a small set of appropriate nodes can fully characterise a single community.
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https://hal-paris1.archives-ouvertes.fr/hal-00823315
Contributor : Bénédicte Le Grand <>
Submitted on : Thursday, May 16, 2013 - 3:56:00 PM
Last modification on : Thursday, March 21, 2019 - 1:11:19 PM

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Maximilien Danisch, Jean-Loup Guillaume, Bénédicte Le Grand. Towards multi-ego-centered communities: a node similarity approach. International Journal of Web Based Communities, Inderscience, 2013, 9 (3), pp.299-322. ⟨10.1504/ijwbc.2013.054906⟩. ⟨hal-00823315⟩

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