It proposes two data reduction models based on discernibility matrix and data analysis separately, improves the discernibility matrix algorithm and made the comparison between the two models.

提出了基于分辨矩阵和数据分析的两种数据约简模型，并对分辨矩阵算法做了改进，最后对这两种模型进行了比较。

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Also note that the matrix row identified in the first column in the data set is ALWAYS smaller than the corresponding matrix column identified in the second column of the data set.

还需注意数据集中第一列所确定的矩阵行值必须小于相应矩阵第二列所确定的行值。

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The great symbol of American mobility is morphing into a network device, a data-generating green machine plugged into a matrix of power grids, cloud computers and social media.

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