The Note at the bottom of Table 6 was corrected from "x : means ROC-AUC value; SE: standard error; df: degree of freedom; LCL and UCL: lower and upper 95 confidence limits; p: two-tailed significance level; Sig.: column indicates statistical significance (* = p 0.5, x < 0.5, x = 0.5: counts of ROC-AUC values above, below, and equal to the random baseline (0.5); p: two-tailed significance level from the sign test; Sig.column indicates statistically significant differences (* = p < 0.05,
Hiroki Tanioka (Fri,) studied this question.