LightGBM prediction of ﹩{k}_{{\rm{FP}}}^{11}﹩ with different features (200 ms). The blue line corresponds to the Boltzmann–radiation–hydrodynamics code and the green line to the M1 closure method. The black line is the LightGBM prediction with basic features (ll. 1–6 of Table 1), the orange line with combined features, and the red line with all engineered features: combined features, nonlocal features, and differential features.