WikiLens

The is the bipartite rating network of WikiLens, an academic project to create a wiki-like site (WikiLens) on which any type of could be rated.

Metadata

Code		`WL`
Internal name		`wikilens-ratings`
Name		WikiLens
Data source		https://grouplens.org/datasets/wikilens/
Availability		Dataset is available for download
Consistency check		Dataset passed all tests
Category		Rating network
Dataset timestamp		2004 ⋯ 2008
Node meaning		User, ratee
Edge meaning		Rating
Network format		Bipartite, undirected
Edge type		Ratings, no multiple edges
Temporal data		Edges are annotated with timestamps

Size	n =	5,437
Left size	n₁ =	326
Right size	n₂ =	5,111
Volume	m =	26,937
Wedge count	s =	6,316,744
Claw count	z =	1,796,063,698
Cross count	x =	540,054,945,973
Square count	q =	6,558,573
4-Tour count	T₄ =	77,798,334
Maximum degree	d_max =	1,721
Maximum left degree	d_1max =	1,721
Maximum right degree	d_2max =	80
Average degree	d =	9.908 77
Average left degree	d₁ =	82.628 8
Average right degree	d₂ =	5.270 40
Fill	p =	0.016 166 9
Size of LCC	N =	5,416
Diameter	δ =	9
50-Percentile effective diameter	δ_0.5 =	3.249 34
90-Percentile effective diameter	δ_0.9 =	3.877 23
Median distance	δ_M =	4
Mean distance	δ_m =	3.410 53
Gini coefficient	G =	0.770 079
Balanced inequality ratio	P =	0.193 359
Left balanced inequality ratio	P₁ =	0.204 774
Right balanced inequality ratio	P₂ =	0.267 736
Relative edge distribution entropy	H_er =	0.810 709
Power law exponent	γ =	1.860 94
Tail power law exponent	γ_t =	2.201 00
Tail power law exponent with p	γ₃ =	2.201 00
p-value	p =	0.052 000 0
Left tail power law exponent with p	γ_3,1 =	1.711 00
Left p-value	p₁ =	0.000 00
Right tail power law exponent with p	γ_3,2 =	3.601 00
Right p-value	p₂ =	0.009 000 00
Degree assortativity	ρ =	−0.274 528
Degree assortativity p-value	p_ρ =	0.000 00
Spectral norm	α =	36.156 7
Algebraic connectivity	a =	0.004 639 83
Spectral separation	\|λ₁[A] / λ₂[A]\| =	1.167 54
Negativity	ζ =	0.437 465
Algebraic conflict	ξ =	0.191 540
Spectral signed frustration	φ =	0.004 816 06
Controllability	C =	4,793
Relative controllability	C_r =	0.881 552

[1]	Jérôme Kunegis. KONECT – The Koblenz Network Collection. In Proc. Int. Conf. on World Wide Web Companion, pages 1343–1350, 2013. [ http ]
[2]	Dan Frankowski, Shyong K. Lam, Shilad Sen, F. Maxwell Harper, Scott Yilek, Michael Cassano, and John Riedl. Recommenders everywhere: The WikiLens community-maintained recommender system. In Proc. Int. Symp. on Wikis, pages 47–60, 2007.