Parzen窗估计法是一种具有坚实理论基础和优秀性能的非参数函数估计方法，它能够较好地描述多维数据的分布状态。-Parzen window estimation method is a non-parametric function estimation method has a solid theoretical basis and excellent performance, it can be used to describe the distribution of state of th

K近邻（KNN）：分类算法KNN是non-parametric分类器（不做分布形式的假设，直接从数据估计概率密度），是memory-based learning KNN不适用于高维数据（curse of dimension）-K-Nearest Neighbor (KNN): Classification Algorithm. KNN is a non-parametric classifiers (not to assume that the distribution of forms, fr