# k近邻

主要了解距离的概念，计算出距离最近的k个点，其类别最大的那个作为本样本预测的类

* 距离评价参考：[距离评价](/pytorch/ji-suan-ji/ml/wen-da/ping-jia-zhi-biao.md)
* 寻找最近的k个点主要用的kdtree：[kdtree](/pytorch/ji-suan-ji/ml/kdtree.md)


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