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Table 3
Representation of a community structure
Community-ID	List of members
community-ID₁	{user-ID_a; user-ID_b; … ; user-ID_c}
community-ID₂	{user-ID_i; user-ID_j; … ; user-ID_k}
⋯	{⋯}
community-ID_N	{user-ID_x; user-ID_y; … ; user-ID_z}

Ferrara EPJ Data Science 2012 1:9 doi:10.1186/epjds9

Table 3