Dimitris Paraschakis

Support for cross-validation in scenarios

4

Scenarios currently cover single train-test-validation splits. It would be nice to have a mechanism for cross-validation as well.

Just reporting that the Random recommender has the same issue as in #4. As an alternative, I want to share my implementation of the Random recommender, which I found to...

Recommending 'consumed' items

3

I might be wrong, but by looking at the code of Popularity recommender, it seems that it recommends the same set of items to every user. It is actually stated...

Popularity recommender with less than K items

1

A minor thing that could be an issue for smaller datasets. Since the default value for K is 200 for popularity recommender, it will fail with a ValueError if the...