Yes, it is very impressive indeed! And it seems as though I still do not need any regularization, since training and testing accuracy are fairly close together

Thank you again! I am not at more than 98% accuracy for training and testing, with training still going

Thank you very much for the suggestion. I will have a look into it and then repo how good a result it gave me

That sounds somewhat similar to an A/B-test. Comparing my model against a random recommendation. Is that correct?

@Sycorax So far I did not find recent literature, which evaluates the accuracy of recommender systems. All I am interested in is how does the accuracy of this model compare to e.g. Amazon, Netflix or anyone else. I really have no idea, if 20% are awesome or terrible

@Sycorax Thank you very much for the hin. You are right, the language and framework are not really important here. Do you have an answer to the question, though