... 金属热还原、metallothermic reduction 降维处理、reduction of dimensionality 碱性还原、alkaline reduction ...
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The algorithm is impractical on large data sets, unless it USES dimensionality reduction, sampling, or partitioning - all of which reduce recommendation quality.
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。
Such technique pursues, through the study of the eigenvalues, the reduction of the dimensionality in the representation space.
这种方法是通过对特征值的研究，追求表征空间的维数压缩。
Multidimensional scaling is a powerful tool for dimensionality reduction in the field of pattern recognition and data mining.
多维尺度分析是模式识别与数据挖掘领域一个有力的降维工具。
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