> Why are there some user-item interactions in the train_5core but not in the train?

A minor question.

Posted by: dhy @ Dec. 23, 2021, 1:20 p.m.

You can think of train_5core as filtered users with 5 ratings, and items with 5 ratings from their corresponding train.tsv file. However, we applied other criteria as well for extracting those files and operations such as normalizing the ratings for train_5core.tsv.

Posted by: hamedrab @ Dec. 25, 2021, 3:33 p.m.
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