Figure 7
A bar graph compares the coefficient of variation for fixed P I N N and G A P I N N models. The horizontal axis is labeled with two categories: Fixed P I N N and G A P I N N. The vertical axis is labeled Coefficient of Variation (C V) and ranges from 0.00 to 0.25. There are two vertical bars, one for each category. The bar for Fixed P I N N has a value of 0.2485, and the bar for G A P I N N has a value of 0.2597. Both bars are colored blue.Coefficient of variation (CV) of residual RMSE across multiple random initializations for fixed-weight and GA-optimized PINN models