Figure 14.
The image presents three scatter plots showing relationships between actual second corrosion depth and predicted second corrosion depth for combined test data across time steps 1, 2, 3, 4, and 5. The top left plot shows predicted median values against actual values with a diagonal one-to-one reference line, indicating prediction accuracy. Points cluster below the reference line at higher actual depths, showing underprediction. The top right plot shows predicted 2.5 percentile values against actual values, where most points lie well below the reference line, indicating conservative lower bounds. The bottom plot shows predicted 97.5 percentile values against actual values, with many points above the reference line, indicating upper uncertainty limits. Together, the plots illustrate prediction spread, bias, and uncertainty relative to measured corrosion depth.Distribution of predicted and actual C2 values by BNN (Median, 2.5th percentile, 97.5th percentile)