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基础推荐算法演示数据
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user_001,book_001,4 | |
user_001,book_002,3 | |
user_001,book_005,5 | |
user_002,book_001,5 | |
user_002,book_003,4 | |
user_002,book_005,4 | |
user_003,book_001,4 | |
user_003,book_003,5 | |
user_003,book_004,3 | |
user_003,book_005,4 | |
user_004,book_002,3 | |
user_004,book_006,5 | |
user_005,book_002,4 | |
user_005,book_006,4 | |
user_006,book_003,2 | |
user_006,book_004,4 | |
user_006,book_006,5 |
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