Analysis of Dynamic Communities on Gnutella
This paper focus on the community dynamics on Gnutella topology.We defined the events involving communities and nodes and monitored the dynamic of communities by detecting these events.By testing on Gnutella,we find that nodes frequently join or leave.We defined the index that reflects stability of communities.Base on the topological data measured on Gnutella,we find that the communities on Gnutella are not stable because of the frequent appearance and disappearance of nodes.Furthermore,we defined the index that reflects the stability of nodes′ community.Testing on the Gnutella topology show that,nodes that didn′t disappear would always tend to change their communities.This is also caused by the frequent appearance and disappearance on nodes.