手法を比較

	勾配ブースティング	オンラインブースティング
分野	機械学習	機械学習
系統	Machine learning	Machine learning
提唱年	2001	2001
提唱者	Friedman, J. H.	Oza, N. C. & Russell, S.
種類	Ensemble (sequential boosting of decision trees)	Online ensemble (incremental boosting)
原典	Friedman, J. H. (2001). Greedy Function Approximation: A Gradient Boosting Machine. Annals of Statistics, 29(5), 1189–1232.	Oza, N. C., & Russell, S. (2001). Online Bagging and Boosting. In Artificial Intelligence and Statistics 2001 (pp. 105–112). Morgan Kaufmann.
別名	Gradient Boosting (GBM), GBM, gradient boosted trees, gradient boosting machine	streaming boosting, incremental boosting, online AdaBoost, online ensemble boosting
関連	5	6
概要	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.	Online Boosting adapts the classical boosting framework to data streams, updating an ensemble of weak learners one example at a time without storing the full dataset. The Oza-Russell formulation approximates AdaBoost's reweighting using Poisson-sampled instance counts, enabling accurate, adaptive classification in real-time or resource-constrained environments.