why convert to implicit scenario

HarshdeepGupta / recommender_pytorch

A recommender system in PyTorch from scratch.

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why convert to implicit scenario #2

Open stellaywu opened 5 years ago

stellaywu commented 5 years ago

wondering why the ratings are all set to 1 in the dataset as implicit scenario. Thanks!

HarshdeepGupta commented 5 years ago

In the implicit scenario, you are just deciding weather to recommend a movie or not, it becomes a binary problem. Hence you just use 0 or 1, instead of fine granular rating. This is mostly picked up from the literature on recommender systems, and is not something new for this model.

stellaywu commented 5 years ago

Thank you! Did not realize it was trying to simplify the number of classes.