Results from the synthetic-oversampling LOO CV performed on the 119 stars in common between this study and the high-resolution spectroscopic sample of Aoki et al. (2013). The synthetic-oversampling method predicted [Fe/H], [Fe/H]_SOM, is shown relative to the Subaru/HDS measured [Fe/H]. Stars are color coded by their SSPP measured [Fe/H]. The solid, black line shows the relation for perfect 1:1 regression. All stars with predicted [Fe/H] ≤−2.707 are considered EMP candidates. The areas corresponding to true positives and true negatives are shaded in the lower-left and upper-right corners, respectively. False negatives and false positives are shown in the upper-left and lower-right corners, respectively.