Example graph for community or cluster detection

The graph 'Original_Karate_network' (Zachary’s karate club network) is used for demonstration in the Mathematica notebooks for cluster/community detection.

WW Zachary, An information flow model for conflict and fission in small groups, Journal of Anthropological Research 33(4), 452–473 (1977)

Girvan, M., Newman, M.E.J. Community structure in social and biological networks. PNAS 99(12), 7821-7826 (2002)