| Ref. | Datasets | Main evaluation metrics | Objective function |
| [19] | Amazon [58] Red dataset [59] | Recall, AP, MAE, NDCG | C-HMF, S-HMF | [26] | MovieLens | Precision, coverage, Gini coefficient | 5D-score | [31] | MovieLens, Jester, Netflix | Precision, diversity, novelty | Accuracy, nonpopular items metric (novelty) | [32] | MovieLens, Netflix | Precision, recall, coverage, MAE | MAE, coverage | [33] | MovieLens, Netflix | Precision, RMSE, personalized diversity metric, novelty | Diversity, long-tailed distribution, accuracy |
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