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caserec / CaseRecommender

Case Recommender: A Flexible and Extensible Python Framework for Recommender Systems
MIT License
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Evaluation of binary NMF #36

Closed danisben closed 2 years ago

danisben commented 4 years ago

Hi, Does CaseRecommender support the evaluation of binary non-negative matrix factorization? (All feedback are 0 or 1) I've tried to do that but the MAP/NDCG/PREC/RECALL was always zero. It doesn't seem to work. If I change the feedback to 0~5 on the same dataset, the evaluation metric works well.

philippschw commented 3 years ago

Hi @danisben and others, how did you solve the issue eventually? Did you implement your own solution or used another library? I am facing the same issue. I am building a recommendation engine, where I have a list of things that are encoded binary.