Example: User A gave a 1 to Item I and a 1.5 to Item J. User B gave a 2 to Item I. How do you think User B rated Item J?
例: User A 对 Item I 评分为1 对Item J.评分为1.5 User B 对 Item I 评分为2. 你认为 User B 会给 Item J 打几分?