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There has been a significant body of work on evaluating node criticality in information networks. However, most of the existing works are developed for static networks and are not applicable to dynamic settings where connectivities among nodes change frequently over time. In this paper, we treat an opportunistic mobile social network as a time-evolving, dynamic graph, and propose a scheme to ascertain...
Conventional methods with measuring information propagation in static networks mainly rely on paths or the shortest path connecting nodes, whereas in opportunistic mobile social networks the existence of a path or the shortest path between nodes cannot be assumed due to the dynamic topological partition nature of the networks. This paper extends the concept of walk to dynamic settings and combines...
Although social-aware opportunistic networking paradigms are considered to have broad potential applications, so far very little is known about which nodes are more important in both sustaining the network topology and forwarding or disseminating messages. To address this issue, this paper redefines the concept of walk and extends traditional Katz Centrality measurement to dynamic opportunistic social...
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