KNN is easy to understand and works well on small datasets.
KNN 很容易理解,并且在小型数据集上效果不错。
In high-dimensional spaces, KNN often suffers from the curse of dimensionality, so feature scaling and careful choice of distance metric become crucial.
在高维空间中,KNN 常受“维度灾难”影响,因此特征缩放和谨慎选择距离度量就变得非常关键。