Where E [-] is the expectation operation with respect to X.And K - K2 is the norm squared value. We know that PCA.Transformation u is of size D experience h and it is used to do dimensionality.Reduction from d-dimensional space to h-dimensional.Feature, space i.e. U: X! Y or y = uTx. It should be.Noted that in, this transformation x is assumed to be zero.Mean if mean, is not zero then y can be represented as.
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