Table 1.
User–item rating matrix.
Table 2.
Flattened data format derived from Table 1.
Fig 1.
Frequency distributions of ratings.
Fig 2.
Workflow of the methods for analyzing distributed datasets.
Table 3.
Testing RMSE for the MovieLens 100K dataset (m = 9).
Table 4.
Testing RMSE for the SUSHI preference dataset (m = 50).
Fig 3.
Testing RMSE as a function of the number of involved parties.