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Table 1 Spearman rho values used for evaluation of CATSCAN image ordering

From: Spectral embedding finds meaningful (relevant) structure in image and microarray data

Method rho
PCA (cor) 0.902
PCA (cov) 0.966
Nonmetric MDS 0.966
Kernel PCA (ε = 1,040) 0.989
Spectral-Ng et al. (ε = 70) 0.980
Spectral-Lafon 1.000
  1. Two linear methods and four nonlinear methods are considered. For both kernel PCA and the spectral method from Ng et al., the methods were optimized at the epsilon (ε) values provided.