31 Experiment Protocol  Test the sensitivity of the proposed model to the amount of training data Vary the number of training users MovieRating dataset: 100 and 200 training users EachMovie dataset: 200 and 400 training users  Test the sensitivity of the proposed model to the information needed for the test user Vary the number of rated items provided by the test user  5, 10, and 20 items are given with ratings
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