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Performance evalution in the recommender extension

bernardo_pagnonbernardo_pagnon Member, University Professor Posts: 64 University Professor
edited March 2020 in Help
Hello,

I am using the recommender extension and there is one thing I don't get it. In the item recommendation, the operator gives a ranking prediction of unseen movies for a user (unlike the rating prediction). In this case, how can one evaluate the quality of the estimator? Does it make sense to use the split operator for instance? There is no label, no benchmark!

Best,
Bernardo 


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    bernardo_pagnonbernardo_pagnon Member, University Professor Posts: 64 University Professor
    Hello Brian,

    thank you for your reply. I agree with everything that you said, validating an unsupervised ML method is usually tricky. I am doing exactly as you said, looking at the different top-rated movies
    and trying to gain some insight. 

    Best,
    Bernardo
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