说明：  KPCA 核主成分分析 降维处理 与传统的PCA相比，KPCA具有主成份特征明显,贡献率集中,主成份参数维数较少等优点,其性能明显高于PCA的分析结果
(Nuclear dimension principal component analysis (KPCA Compared with the traditional PCA, KPCA with principal component characteristics significantly, contribution, principal component dimension the advantage such as less parameters, its performance is significantly higher than the PCA analysis results)