Flickr

This is the social network of Flickr users and their friendship connections.

Metadata

Code		`FL`
Internal name		`flickr-growth`
Name		Flickr
Data source		http://socialnetworks.mpi-sws.org/data-wosn2008.html
Availability		Dataset is available for download
Consistency check		Dataset passed all tests
Category		Online social network
Dataset timestamp		2008
Node meaning		User
Edge meaning		Friendship
Network format		Unipartite, directed
Edge type		Unweighted, no multiple edges
Temporal data		Edges are annotated with timestamps
Reciprocal		Contains reciprocal edges
Directed cycles		Contains directed cycles
Loops		Does not contain loops

Size	n =	2,302,925
Volume	m =	33,140,017
Loop count	l =	0
Wedge count	s =	23,342,941,288
Claw count	z =	83,140,847,127,775
Cross count	x =	252,648,787,555,767,328
Triangle count	t =	837,605,842
Square count	q =	712,355,262,231
4-Tour count	T₄ =	5,792,259,539,552
Maximum degree	d_max =	34,174
Maximum outdegree	d⁺_max =	26,367
Maximum indegree	d⁻_max =	21,001
Average degree	d =	28.780 8
Fill	p =	6.248 75 × 10⁻⁶
Size of LCC	N =	2,173,370
Size of LSCC	N_s =	1,605,184
Relative size of LSCC	N^r_s =	0.697 020
Diameter	δ =	23
50-Percentile effective diameter	δ_0.5 =	4.804 35
90-Percentile effective diameter	δ_0.9 =	6.886 64
Median distance	δ_M =	5
Mean distance	δ_m =	5.459 41
Gini coefficient	G =	0.880 189
Balanced inequality ratio	P =	0.119 649
Outdegree balanced inequality ratio	P₊ =	0.124 162
Indegree balanced inequality ratio	P₋ =	0.121 777
Relative edge distribution entropy	H_er =	0.827 805
Power law exponent	γ =	2.017 38
Tail power law exponent	γ_t =	1.711 00
Degree assortativity	ρ =	−0.002 700 53
Degree assortativity p-value	p_ρ =	2.014 28 × 10⁻⁷⁴
Clustering coefficient	c =	0.107 648
Directed clustering coefficient	c^± =	0.122 264
Spectral norm	α =	2,144.47
Operator 2-norm	ν =	1,127.13
Cyclic eigenvalue	π =	1,018.96
Reciprocity	y =	0.621 710
Non-bipartivity	b_A =	0.705 937
Normalized non-bipartivity	b_N =	0.001 780 25
Algebraic non-bipartivity	χ =	0.003 538 87
Spectral bipartite frustration	b_K =	4.229 84 × 10⁻⁵

[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, Hema Swetha Koppula, Krishna P. Gummadi, Peter Druschel, and Bobby Bhattacharjee. Growth of the Flickr social network. In Proc. Workshop on Online Soc. Netw., pages 25–30, 2008.