I am studying latent factor model for recommendor system. It does matrix factorization(like SVD) on the user-item rating matrix. What I am not sure is, does a trained model work for a new user that is not included in the training dataset?

  • $\begingroup$ I miss some information about the model and training process you allude to, but if generalisation is a feature of the training then yes it should work $\endgroup$ – Nikos M. Jan 15 at 16:05

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