78 CHAPTER 3 Objective 1 Table 2. Hyperparameters and thresholds used for RF, XGBoost and Lasso regression Hyperparameters and thresholds Threshold (average optimal) Lambda Tree depth Number of trees Random Forest 0.37 (0.01) NA default default XGBoost 0.36 (0.04) NA 2 51 Lasso regression 0.26 (0.04) 0.01 (0.003) NA NA Results based on analyses among study population of 4172 women Table 3. Results of the RF and sensitivity analyses for the six separate folds Metrics AUC F1-measure Precision Recall/ sensitivity Specificity Random Forest Average 0.98 (0.00) 0.70 (0.03) 0.74 (0.06) 0.66 (0.04) 0.98 (0.00) Fold 1 0.98 0.68 0.69 0.67 0.98 Fold 2 0.98 0.68 0.68 0.69 0.98 Fold 3 0.98 0.70 0.74 0.67 0.98 Fold 4 0.98 0.75 0.83 0.68 0.99 Fold 5 0.98 0.72 0.74 0.69 0.98 Fold 6 0.97 0.66 0.75 0.59 0.99 XGBoost Average 0.98 (0.00) 0.68 (0.04) 0.70 (0.02) 0.67 (0.08) 0.98 (0.00) Fold 1 0.98 0.68 0.68 0.69 0.98 Fold 2 0.98 0.68 0.68 0.69 0.98 Fold 3 0.98 0.61 0.70 0.55 0.98 Fold 4 0.98 0.75 0.72 0.77 0.98 Fold 5 0.98 0.66 0.74 0.60 0.99 Fold 6 0.97 0.70 0.71 0.70 0.98 Lasso regression Average 0.98 (0.01) 0.68 (0.04) 0.67 (0.07) 0.70 (0.07) 0.98 (0.01) Fold 1 0.97 0.64 0.54 0.78 0.96 Fold 2 0.98 0.71 0.65 0.77 0.98 Fold 3 0.97 0.65 0.71 0.60 0.98 Fold 4 0.98 0.74 0.74 0.73 0.98 Fold 5 0.98 0.66 0.68 0.64 0.98 Fold 6 0.97 0.69 0.70 0.67 0.98 Results based on analyses among study population of 4172 women
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