CiteULike user–item
This is the bipartite network of users and publications in CiteULike. Each
edge represents a tag assignment that connects a users and a publication.
Since a user can be assign multiple tags to a publication, the network contains
multiple edges. The edges are annotated with the creation time of the tag
assignment.
Metadata
Statistics
Size  n =  754,484

Left size  n_{1} =  22,715

Right size  n_{2} =  731,769

Volume  m =  2,411,819

Unique edge count  m̿ =  842,426

Wedge count  s =  343,677,541

Claw count  z =  476,035,640,534

Cross count  x =  909,343,585,975,693

Square count  q =  962,735

4Tour count  T_{4} =  1,384,098,060

Maximum degree  d_{max} =  57,706

Maximum left degree  d_{1max} =  57,706

Maximum right degree  d_{2max} =  1,646

Average degree  d =  6.393 29

Average left degree  d_{1} =  106.177

Average right degree  d_{2} =  3.295 87

Fill  p =  5.068 10 × 10^{−5}

Average edge multiplicity  m̃ =  2.862 94

Size of LCC  N =  576,245

Diameter  δ =  20

50Percentile effective diameter  δ_{0.5} =  6.265 75

90Percentile effective diameter  δ_{0.9} =  8.501 64

Median distance  δ_{M} =  7

Mean distance  δ_{m} =  7.064 48

Gini coefficient  G =  0.747 683

Balanced inequality ratio  P =  0.209 926

Left balanced inequality ratio  P_{1} =  0.128 030

Right balanced inequality ratio  P_{2} =  0.303 091

Relative edge distribution entropy  H_{er} =  0.848 102

Power law exponent  γ =  9.072 94

Tail power law exponent  γ_{t} =  3.281 00

Degree assortativity  ρ =  −0.023 376 8

Degree assortativity pvalue  p_{ρ} =  0.000 00

Spectral norm  α =  1,448.25

Algebraic connectivity  a =  0.000 109 746

Spectral separation  λ_{1}[A] / λ_{2}[A] =  1.448 50

Controllability  C =  709,624

Relative controllability  C_{r} =  0.940 542

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]

Kevin Emamy and Richard Cameron.
CiteULike: A researcher's social bookmarking service.
Ariadne, (51), 2007.
