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. 2021 Jun 10;18(12):6272. doi: 10.3390/ijerph18126272

Figure 2.

Figure 2

Brief pipeline of the preprocessing method with the complete mode. The complete mode requires the difference between the number of very negative samples and the number of very positive samples to be no more than one. This mode also requires the difference between the number of negative samples and the number of positive samples to be no more than one. Therefore, the resulting data set of the complete mode is completely balanced.