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Autorec (Autoencoders Meet Collaborative Filtering)
In test_model() method, you use below dictionary to feed model:
feed_dict={self.input_R: self.test_R, self.input_mask_R: self.test_mask_R}
so you feed model with test_R to predict test ratings! Isn't it wrong?I believe the feed_dict must be as below:
feed_dict={self.input_R: self.train_R, self.input_mask_R: self.test_mask_R}
so the model won't see test_R before predicting it.
Hi!
I cannot understand a technical step. If only the weights related to the observed ratings are updated during backpropagation, this means that the weights related to the ratings of the test set will never be touched.
Is this not a network with extreme overfitting ?
How is it able to generalize ?
May I know what the training error is in your case? When I plot it, the training error(RMSE) goes up while the testing error decreases.
Thanks
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