1. Jester dataset.
https://goldberg.berkeley.edu/jester-data/
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3. Del Corso, G.M., Romani, F.: Adaptive nonnegative matrix factorization and measure comparisons for recommender systems. Appl. Math. Comput. 354, 164–179 (2019)
4. Eskandanian, F., Mobasher, B., Burke, R.D.: User segmentation for controlling recommendation diversity. In: RecSys Posters (2016)
5. Goldberg, K., Roeder, T., Gupta, D., Perkins, C.: Eigentaste: a constant time collaborative filtering algorithm. Inf. Retrieval 4(2), 133–151 (2001)