방법 비교

	정규화 부스팅	그래디언트 부스팅
분야	머신러닝	머신러닝
계열	Machine learning	Machine learning
기원 연도	2001–2016	2001
창시자	Friedman, J. H.; extended by Chen & Guestrin	Friedman, J. H.
유형	Regularized ensemble (boosting with shrinkage/penalty)	Ensemble (sequential boosting of decision trees)
원전	Friedman, J. H. (2001). Greedy function approximation: A gradient boosting machine. Annals of Statistics, 29(5), 1189–1232.	Friedman, J. H. (2001). Greedy Function Approximation: A Gradient Boosting Machine. Annals of Statistics, 29(5), 1189–1232.
별칭	shrinkage boosting, penalized boosting, regularized gradient boosting, L1/L2 boosting	Gradient Boosting (GBM), GBM, gradient boosted trees, gradient boosting machine
관련	5	5
요약	Regularized boosting extends gradient boosting by adding explicit controls — shrinkage (learning rate), L1/L2 weight penalties, subsampling, and tree-complexity limits — to the objective function and the update rule. These constraints reduce overfitting, stabilise the model on noisy or small datasets, and are the core reason why systems such as XGBoost and LightGBM consistently outperform vanilla boosting on real-world tabular benchmarks.	Gradient Boosting is an ensemble learning method, formalised by Jerome H. Friedman in 2001, that combines a sequence of weak learners — typically shallow decision trees — so that each new tree is fitted to minimise the residual errors of the trees before it. It is the core algorithm behind popular implementations such as XGBoost, LightGBM and CatBoost.