Zusammenfassung
Mobile phone calling is one of the most widely used communication methods in
modern society. The records of calls among mobile phone users provide us a
valuable proxy for the understanding of human communication patterns embedded
in social networks. Mobile phone users call each other forming a directed
calling network. If only reciprocal calls are considered, we obtain an
undirected mutual calling network. The preferential communication behavior
between two connected users can be statistically tested and it results in two
Bonferroni networks with statistically validated edges. We perform a
comparative analysis of the statistical properties of four networks, which are
constructed from the calling records of more than nine million individuals in
Shanghai over a period of 110 days. We find that these networks share many
common structural properties and also exhibit idiosyncratic features when
compared with previously studied large mobile calling networks. The empirical
findings provide us an intriguing picture of a representative large social
network that might shed new lights on the modelling of large social networks.
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