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Cheung

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17 Jun 2014 Kernel PCA and Pre-Image Reconstruction standard PCA, Gaussian kernel PCA, polynomial kernel PCA, pre-image reconstruction Author: Quan Wang

您好,请问在distanceMatrix函数中D=XX1+XX2-2*(X*X')起什么作用?如果使用gaussian的话,distance不应该直接就是||a-b||吗?请赐教,非常感谢!

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