S-PCA [4] method is used to predict and detect the face in which various energy ratios of even/odd symmetrical principal
components and their dissimilar sensitivities to sample differences are in use for feature selection which is based on a simple
idea of the even-odd decomposition. SPCA is built on the fact that PCA can be written as a regression-type resource issue, with
a quadratic forfeit; the lasso forfeit can then be directly merged into the retreat criterion, tends to a modified PCA with sparse
loadings