Table 3 Social metrics
From: Content distribution and protocol design issue for mobile social networks: a survey
Social metrics | Description |
|---|---|
Betweenness centrality [69] | Indicates the bridge node or edge between two adjacent nodes or clusters |
Social ties [70] | Meaningful social relationships characterized by a combination of the amount of the amount of time and social homogeneity |
Closeness centrality [71] | Indicates the node which has the shortest path to all other nodes |
Social neighbors [72] | The set of nodes with which a host is related through special social |
Degree centrality [73] | Indicates the number of connection (direct or indirect) to other nodes in the network |
Communities [74] | A clustering of entities that are closely linked to each other |
Similarity [75] | Indicates the grouping of nodes depending upon common contacts or interest |
Edge expansion [76] | The “worst case” exit capacity from a set of nodes, in proportion to its downlink updates traffic |
Tie strength [77] | Indicates the characteristics (i.e., strength) of a link between two nodes (e.g., using frequency and duration of an encounter) |