随机推荐 Random Article 洛杉矶之战主题曲 The Sun's Gone Dim And The Sky's Turned Black 最近文章 Recent Article ..
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它也可以度量系统做出合理推荐(不再是随机推荐)所需的评分个数的下限。
Also it might measure what is the cutoff in the number of ratings the system needs to be able to make reasonable recommendations and not almost random ones.
注意，由于本示例中的数据是随机的，所推荐的内容可能并不符合用户的期望。
Note that, because of the randomness of the data in this example, the recommendations may not be as expected.
他们随机地安排半数患者接受维生素D推荐每日用量（400个国际单位）并加服每周一次的50000个单位的维生素胶囊。
Half the group was randomly assigned to receive the recommended daily dose of vitamin D (400 international units) plus a 50,000-unit vitamin D capsule once a week.
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