This model is the primary nonlinear AO2 profitability model for H2. It trains an XGBoost Gradient Boosting regressor to estimate order-level profitability from the same leakage-safe AO2 predictors and ...

The effect of thoracentesis on pulmonary gas exchange was studied in 33 patients with unilateral pleural effusions of various causes. Arterial blood gases were measured before thoracentesis and at 20 ...

This evaluation pack organizes the validation-slice evidence for the AO2 profitability models. It compares the existing Ridge baseline and Gradient Boosting Regressor ...