Validation of the neural network-based mapping function ℳ that translates stellar physical parameters to H-R diagram coordinates. Left panels: Comparison between true and predicted B-R color, showing good agreement with minimal bias (0.001) and scatter (0.021). Right panels: Validation of absolute G-magnitude (M_G) predictions, displaying negligible bias (0.003) and low scatter (0.026). The bottom panels show residuals (predicted minus true values) across the parameter range, demonstrating no systematic trends.