在大数据集的情况下，这样的算法不可行，除非使用维度降低、抽样或区隔——所有这些都降低了推荐的品质。
The algorithm is impractical on large data sets, unless it USES dimensionality reduction, sampling, or partitioning - all of which reduce recommendation quality.
结果与结论我国现行药品抽样检验存在缺陷，不能有效控制药品质量；
RESULTS&CONCLUSION:The current drug sampling test method is far from perfect and by which the quality of drugs was unable to be effectively controlled.
为掌握小型西瓜生长发育规律，采用分期抽样和定量检测方法，对黄小玉、红小玉生长过程中生育期、干物质积累、养分的吸收分配和果实品质变化进行了研究。
In this article, the development stage, dry matter accumulation, nutrient absorption and distribution, fruit quality changes during growth stage of Huang Xiaoyu and Hong Xiaoyu were studied.
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