Across MovieLens and Amazon data, nDCG and Precision are the most discriminative metrics for hyperparameter tuning, and the number of latent factors dominates other BPR-MF hyperparameters.
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On the discriminative power of Hyper-parameters in Cross-Validation and how to choose them
Across MovieLens and Amazon data, nDCG and Precision are the most discriminative metrics for hyperparameter tuning, and the number of latent factors dominates other BPR-MF hyperparameters.