U. Rovira i Virgili
This is the email communication network at the University Rovira i Virgili in
Tarragona in the south of Catalonia in Spain. Nodes are users and each edge
represents that at least one email was sent. The direction of emails and the
number of emails between two persons are not stored.
Metadata
Statistics
Size  n =  1,133

Volume  m =  5,451

Loop count  l =  0

Wedge count  s =  96,415

Claw count  z =  817,974

Cross count  x =  6,550,542

Triangle count  t =  5,343

Square count  q =  43,591

4Tour count  T_{4} =  745,290

Maximum degree  d_{max} =  71

Average degree  d =  9.622 24

Fill  p =  0.008 500 21

Size of LCC  N =  1,133

Diameter  δ =  8

50Percentile effective diameter  δ_{0.5} =  3.179 35

90Percentile effective diameter  δ_{0.9} =  4.475 95

Median distance  δ_{M} =  4

Mean distance  δ_{m} =  3.654 76

Gini coefficient  G =  0.491 113

Relative edge distribution entropy  H_{er} =  0.942 894

Power law exponent  γ =  1.561 09

Tail power law exponent  γ_{t} =  6.771 00

Degree assortativity  ρ =  +0.078 201 0

Degree assortativity pvalue  p_{ρ} =  2.915 87 × 10^{−16}

Clustering coefficient  c =  0.166 250

Spectral norm  α =  20.747 0

Algebraic connectivity  a =  0.332 560

Spectral separation  λ_{1}[A] / λ_{2}[A] =  1.223 03

Nonbipartivity  b_{A} =  0.592 240

Normalized nonbipartivity  b_{N} =  0.235 829

Algebraic nonbipartivity  χ =  0.334 159

Spectral bipartite frustration  b_{K} =  0.008 681 95

Controllability  C =  60

Relative controllability  C_{r} =  0.040 000 0

Plots
Matrix decompositions plots
Downloads
References
[1]

Jérôme Kunegis.
KONECT – The Koblenz Network Collection.
In Proc. Int. Conf. on World Wide Web Companion, pages
1343–1350, 2013.
[ http ]

[2]

Roger Guimerà, Leon Danon, Albert DíazGuilera, Francesc Giralt, and Alex
Arenas.
Selfsimilar community structure in a network of human interactions.
Phys. Rev. E, 68(6):065103, 2003.
