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.
2003年进行了两次住户满意度调查，抽样调查结果指出了住宅品质的改进方向，并且阐明了北京住宅市场的现实和潜在需求。
Results from two sample investigations, which were made in the years 2002 and 2003, point to the way to improve housing quality and potential and realistic requirement of Beijing housing market.
为对工业产品质量状况进行综合评价，提出了一种以模糊数学为基础的非离散抽样理论。
A non discrete sample theory was developed using fuzzy mathematics for the comprehensive evaluation of industrial product quality.
计量抽样检查是对产品质量特性进行检查，以确定一批产品是否接收的统计方法。
The Sampling inspection by variables is a statistical method for the quality inspection of products.
针对不同的种类进行理化分析和抽样检查，探究原因，提出对策方案，以提高产品质量和模具寿命。
In term of different types physical and chemical analysis and sample inspection are proceeded to explore their causes. Its solution is put forward to increase product quality and die longevity.
实践证明：计量抽样检验是产品质量管理中的重要技术。
The sample number is reduced obviously, and more subtle quality imformation can be supplied during the study processes.
产品质量连续几年经质量技术监督部门抽样检测均为合格产品。
It is an acceptable product that product quality has been sampled to measure by the superintendent office of quality technology for several years in succession.
该产品经国家产品质量监督部门抽样检测，各项指标均可达到或超过国家标准。
The products have been sampled and tested by the State Products Quality Control Department, all technical properties are up to or exceed the latest national standard.
该产品经国家产品质量监督部门抽样检测，各项指标均可达到或超过国家标准。
The products have been sampled and tested by the State Products Quality Control Department, all technical properties are up to or exceed the latest national standard.
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