Journal of Big Data

Table 2 Statistics of the studied datasets

From: An efficient annealing-assisted differential evolution for multi-parameter adaptive latent factor analysis

No.	Name	#User	#Item	#Interaction	Density*
D1	Douban	129,490	58,541	16,830,839	0.22%
D2	MovieLens 20 M	138,493	26,744	20,000,263	0.54%
D3	Flixter	147,612	48,794	8,196,077	0.11%
D4	Yahoo-R2	200,000	136,736	76,344,627	0.076%
D5	Epinion	120,492	775,760	13,668,320	0.015%

^* Density denotes the percentage of observed entries in the dataset

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