Survival Analysis, Data Science, Xgboost, Hands On Tutorials, Explore.
survival estimator such as the Kaplan Meier we can check that for each step of 0.5 in aft_loss_distribution_scale we move roughly one decile to the right in the curve. Also, we don't see a full survival curve: XGBoost only outputs point time-to-event predictions (no confidence intervals either).