Community dynamics in social networks

Gergely Palla; Albert-László Barabási; Tamás Vicsek

doi:10.1117/12.724517

15 June 2007 Community dynamics in social networks

Gergely Palla, Albert-László Barabási, Tamás Vicsek

Proceedings Volume 6601, Noise and Stochastics in Complex Systems and Finance; 660106 (2007) https://doi.org/10.1117/12.724517
Event: SPIE Fourth International Symposium on Fluctuations and Noise, 2007, Florence, Italy

Abstract

We study the statistical properties of community dynamics in large social networks, where the evolving communities are obtained from subsequent snapshots of the modular structure. Such cohesive groups of people can grow by recruiting new members, or contract by loosing members; two (or more) groups may merge into a single community, while a large enough social group can split into several smaller ones; new communities are born and old ones may disappear. We find significant difference between the behaviour of smaller collaborative or friendship circles and larger communities, eg. institutions. Social groups containing only a few members persist longer on average when the fluctuations of the members is small. In contrast, we find that the condition for stability for large communities is continuous changes in their membership, allowing for the possibility that after some time practically all members are exchanged.

Citation Download Citation

Gergely Palla, Albert-László Barabási, and Tamás Vicsek "Community dynamics in social networks", Proc. SPIE 6601, Noise and Stochastics in Complex Systems and Finance, 660106 (15 June 2007); https://doi.org/10.1117/12.724517

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