Research Article
Dynamic Group Recommendation Algorithm Based on Member Activity Level
Table 1
Statistics of the datasets.
| Dataset | #Users | #Items | #Ratings | Rating range | Sparsity (%) |
| ML-100K | 943 | 1682 | 100000 | [1, 5] | 93.7 | Netflix | 480189 | 17770 | 100480507 | [1, 5] | 98.8 |
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