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Table 5 MRR based on user history only = 57%

From: Accuracy improvements for cold-start recommendation problem using indirect relations in social networks

User MRR User MRR
1 1/4 11 1
2 1/2 12 1
3 1/2 13 1/3
4 1 14 1/3
5 1 15 1/2
6 1/5 16 1/3
7 1/2 17 1
8 1/2 18 1/2
9 1/4 19 1
10 1/2 20 1/5