The initial DFT and ML models are both quite similar, which is likely due to the closeness of their prior parameter values. The largest di↵erence between the two is the magnitude of Figure : Gas phase flow rates observed in the unoptimized model (green marker), the optimized model (orange marker), and the experimental data reported by Horn et al. The shaded regions are the 2 (95% confidence) intervals for the uncertainty in the experimental data (light blue region), the MAP model (light orange region) and the initial model prior to BPE (light green region).