This is the bipartite network of Orkut users and their group memberships.


Internal nameorkut-groupmemberships
Data sourcehttp://socialnetworks.mpi-sws.org/data-imc2007.html
AvailabilityDataset is available for download
Consistency checkDataset passed all tests
Affiliation network
Node meaningUser, group
Edge meaningMembership
Network formatBipartite, undirected
Edge typeUnweighted, no multiple edges


Size n =11,514,053
Left size n1 =2,783,196
Right size n2 =8,730,857
Volume m =327,037,487
Wedge count s =2,528,039,357,274
Maximum degree dmax =318,240
Maximum left degree d1max =40,425
Maximum right degree d2max =318,240
Average degree d =56.806 7
Average left degree d1 =117.504
Average right degree d2 =37.457 7
Fill p =1.345 85 × 10−5
Size of LCC N =11,508,023
Diameter δ =15
50-Percentile effective diameter δ0.5 =3.678 65
90-Percentile effective diameter δ0.9 =4.993 95
Mean distance δm =4.290 25
Gini coefficient G =0.874 319
Balanced inequality ratio P =0.130 289
Left balanced inequality ratio P1 =0.213 783
Right balanced inequality ratio P2 =0.119 824
Relative edge distribution entropy Her =0.853 523
Power law exponent γ =1.494 86
Degree assortativity ρ =+0.000 575 114
Degree assortativity p-value pρ =2.467 45 × 10−25
Spectral norm α =3,037.36


Degree distribution

Cumulative degree distribution

Lorenz curve

Spectral distribution of the adjacency matrix

Spectral distribution of the normalized adjacency matrix

Spectral distribution of the Laplacian

Spectral graph drawing based on the adjacency matrix

Spectral graph drawing based on the normalized adjacency matrix

Degree assortativity

Hop distribution



[1] Jérôme Kunegis. KONECT – The Koblenz Network Collection. In Proc. Int. Conf. on World Wide Web Companion, pages 1343–1350, 2013. [ http ]
[2] Alan Mislove, Massimiliano Marcon, Krishna P. Gummadi, Peter Druschel, and Bobby Bhattacharjee. Measurement and analysis of online social networks. In Proc. Internet Measurement Conf., 2007.