Xgboost Regression, Xgboost, Regression, Boosting, Ensemble Method.
be our second decision tree. Likewise, we can create multiple decision trees. Now our complete XgBoost output will be like this, Output = Base Model Value + α1 (Decision Tree 1 output) + α2 (Decision Tree 2 output) + ....... + αn (Decision Tree n output) Also, we can use γ value for post pruning