DVE can be viewed as the nonlinear counterpart of PCA, and also be viewed as a variant of MVU that relaxes the strict distance-preserving constraints.
DVE可以看作是PCA算法的非线性扩展，同时也可以看作是对MVU算法严格局部等距约束的松弛改进。
DVE can be viewed as the nonlinear counterpart of PCA, and also be viewed as a variant of MVU that relaxes the strict distance-preserving constraints.
DVE可以看作是PCA算法的非线性扩展，同时也可以看作是对MVU算法严格局部等距约束的松弛改进。
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