Figure 9From: A survey of results on mobile phone datasets analysis Geographic partitioning of countries. (Top) Communities in Belgium, obtained through modularity optimization. Communities are geographically well-balanced and are centred around important cities (gray dots). Figure reproduced from [61]. (Bottom) Communication network in Great Britain (80% of strongest links). The colors correspond to the communities found by spectral modularity optimization. Figure reproduced from [63].Back to article page