Figure 2

The parameter selection for feature selection is show in (a), the radiomics score histogram of primary cohort and validation cohort is shown in (b) and (c) respectively. The mean absolute error was plotted versus log(λ) in (a). The positive of ALN metastasis was indicated by red bar, and the negative of ALN metastasis was indicated by blue bar. The y-axis denoted the value of radiomics score in (b) and (c).