This is the trust network of Advogato. Advogato is an online community platform for developers of free software launched in 1999. Nodes are users of Advogato and the directed edges represent trust relationships. A trust link is called a "certification" on Advogato, and three different levels of certifications are possible on Advogato, corresponding to three different edge weights: certifications as apprentice (0.6), journeyer (0.8) and master (1.0). A user without any trust certificate is called an observer. It is possible to trust oneself on Advogato, and therefore the network contains loops.


Internal nameadvogato
Data source
AvailabilityDataset is available for download
Consistency checkDataset passed all tests
Online social network
Node meaningUser
Edge meaningTrust
Network formatUnipartite, directed
Edge typePositive weights, no multiple edges
ReciprocalContains reciprocal edges
Directed cyclesContains directed cycles
LoopsContains loops


Size n =6,541
Volume m =51,127
Loop count l =3,992
Wedge count s =3,197,651
Claw count z =466,990,179
Cross count x =71,381,614,071
Triangle count t =98,300
Square count q =3,571,636
4-Tour count T4 =41,442,262
Maximum degree dmax =943
Maximum outdegree d+max =786
Maximum indegree dmax =722
Average degree d =15.632 8
Fill p =0.001 195 71
Size of LCC N =5,042
Size of LSCC Ns =3,140
Relative size of LSCC Nrs =0.480 049
Diameter δ =9
50-Percentile effective diameter δ0.5 =2.730 57
90-Percentile effective diameter δ0.9 =3.818 14
Median distance δM =3
Mean distance δm =3.287 99
Gini coefficient G =0.690 622
Balanced inequality ratio P =0.228 500
Outdegree balanced inequality ratio P+ =0.225 771
Indegree balanced inequality ratio P =0.225 634
Relative edge distribution entropy Her =0.888 720
Power law exponent γ =1.683 19
Tail power law exponent γt =3.041 00
Tail power law exponent with p γ3 =3.041 00
p-value p =0.019 000 0
Outdegree tail power law exponent with p γ3,o =3.141 00
Outdegree p-value po =0.050 000 0
Indegree tail power law exponent with p γ3,i =3.121 00
Indegree p-value pi =0.583 000
Degree assortativity ρ =−0.095 094 6
Degree assortativity p-value pρ =3.111 87 × 10−157
In/outdegree correlation ρ± =+0.689 148
Clustering coefficient c =0.092 223 9
Directed clustering coefficient c± =0.123 560
Spectral norm α =75.557 9
Operator 2-norm ν =48.084 5
Cyclic eigenvalue π =26.458 5
Algebraic connectivity a =0.092 830 6
Spectral separation 1[A] / λ2[A]| =1.645 31
Reciprocity y =0.385 159
Non-bipartivity bA =0.603 415
Normalized non-bipartivity bN =0.130 758
Algebraic non-bipartivity χ =0.194 738
Spectral bipartite frustration bK =0.002 936 84
Controllability C =1,038
Relative controllability Cr =0.158 740


Fruchterman–Reingold graph drawing

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 Laplacian

Spectral graph drawing based on the normalized adjacency matrix

Degree assortativity

Zipf plot

Hop distribution

Double Laplacian graph drawing

Delaunay graph drawing

In/outdegree scatter plot

Edge weight/multiplicity distribution

Clustering coefficient distribution

Average neighbor degree distribution


Matrix decompositions plots



[1] Jérôme Kunegis. KONECT – The Koblenz Network Collection. In Proc. Int. Conf. on World Wide Web Companion, pages 1343–1350, 2013. [ http ]
[2] Paolo Massa, Martino Salvetti, and Danilo Tomasoni. Bowling alone and trust decline in social network sites. In Proc. Int. Conf. Dependable, Auton. and Secure Comput., pages 658–663, 2009.