如何处理机器学习中的离群值
原文英文,约1400词,阅读约需5分钟。发表于: 。Outliers are unusual data points that stand out from the rest of your data because they are either much higher or much lower than the rest. Imagine a classroom where most students score between 50...
离群值是与数据集差异较大的数据点,可能影响分析。处理方法包括:Z-Score适用于正态分布;IQR利用四分位数识别;修改后的Z-Score更稳健;箱线图直观识别;Winsor化限制极端值;对数变换减少影响。选择方法需视数据特性而定。