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IEEE/ICACT20220190 Question.5 Questioner: rna0415@g.skku.edu 2022-02-16 오후 9:48:17	IEEE/ICACT20220190 Answer.5 Answer by Auhor quandh@vnu.edu.vn 2022-02-16 오후 9:48:17
Thank you for your work! I could see your motivation, and experiment with evaluation. I just want to ask you a little more detail about the cold-start. For example, terms of background, or scenarios. Thank you in advance	The item cold-start problem appears when new items arrive with no or very few interactions. In our experimental dataset, there are 141 movies received only 1 rating. Among them, we select items appeared in the test set, but not in the training set to perform experimental comparisons. By doing so, we can test with those completely new items since they are not observed in the training set. Hope this answer helps.

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