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do I need to pass user and item matrixes to predict method for known users and items in fit step #683

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unrepeat opened this issue Apr 6, 2023 · 0 comments

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@unrepeat
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unrepeat commented Apr 6, 2023

I've fitted the model with user and items matrixes:
model.fit( int_m, user_features = user_matrix, item_features = item_matrix)
Let's say I want to have predictions for one user and few items, can I do like this:
model.predict(1,[2,5,7,8,9])
or I need to again pass matrixes like this:
model.predict(1,[2,5,7,8],user_features = user_matrix, item_features = item_matrix))
Im asking because results are different:
[ -2.8424215 -12.3355665 -9.75003 -8.55455 -3.7264912]
vs
[-119.41913 -117.80002 -116.015114 -117.74599 -119.52765 ]

@unrepeat unrepeat changed the title do I need to pass metadata matrix for do I need to pass metadata matrixes to predict method for known users and items in fit step Apr 6, 2023
@unrepeat unrepeat changed the title do I need to pass metadata matrixes to predict method for known users and items in fit step do I need to pass user and item matrixes to predict method for known users and items in fit step Apr 6, 2023
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