1. Comparison of Test Performance Metrics for Four Trained ML Models Calculated for 400 Test Ligands in the First Data Split .
| Model | RMSE (kcal/mol) | Pearson’s R | Spearman’s ρ |
|---|---|---|---|
| Linear Regression | 1.27 ±0.08 | 0.60 ± 0.04 | 0.64 ± 0.03 |
| Random Forest | 1.03 ± 0.06 | 0.75 ± 0.02 | 0.76 ± 0.02 |
| XGBoost | 1.01 ± 0.05 | 0.77 ± 0.02 | 0.78 ± 0.02 |
| GraphConv | 1.03 ± 0.05 | 0.75 ± 0.03 | 0.75 ± 0.03 |
The standard errors were estimated using bootstrapping with 1000 samples drawn with replacement.