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Diffusion Cascades: Spreading Phenomena in Blog Network Communities

Abdelhamid Salah Brahim, Bénédicte Le Grand and Matthieu Latapy

Parallel Processing Letters 22(1): (2012)

A diffusion cascade occurs when information spreads from one node to the rest of the network through a succession of diffusion events. So far diffusion phenomena have been mostly considered at a macroscopic scale i.e. by studying all nodes of the network. We give a complementary way to analyse network interactions by considering the problem at different scales. To that purpose, we use the community structure of the network to characterize diffusion between nodes (and between communities) and to identify interactions behaviour patterns.

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Some Insight on Dynamics of Posts and Citations in Different Blog Communities

Abdelhamid Salah Brahim, Bénédicte Le Grand and Matthieu Latapy

IEEE ICC 2010 workshop « SocNets », Cape Town, South Africa, May 2010

This paper explores new approaches and methods to characterize post and citation dynamics in different blog communities. In particular, evolution of post popularity over time is studied, as well as information spreading cascades. This methodology goes beyond traditional approaches by defining classes of dynamic behaviors based on topological features of the post network, and by investigating the impact of topical communities on post popularity dynamics and on information spreading cascades. This methodology has been applied to a corpus of active French blogs monitored during 4 months.

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