KNN classifier average performance with standard deviation on versions of the Two Moons dataset resampled using either PCU or other techniques.

The Semi-Guided method significantly reduces the impact of noise on the subsequent KNN classifier. Symbol †: Statistically significant compared to Semi-Guided method. Symbol ‡: Statistically significant compared to Fully-Guided method.

半引导方法（Semi-Guided method）可显著降低噪声对后续K近邻分类器（KNN Classifier）的影响。符号†：相较于半引导方法存在统计学显著性差异。符号‡：相较于全引导方法（Fully-Guided method）存在统计学显著性差异。