Final dataset statistics:
Dataset: Yelp2018
Number of users: 55616
Number of items: 34945
Number of interactions: 1506777
Number of train interactions: 1205421
Number of test interactions: 301356
Density: 0.00078
Number of unique users in train: 55616
Number of unique items in train: 34945
Number of unique users in test: 51279
Number of unique items in test: 34944
N-core: 10
