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	オンラインブースティング	勾配ブースティング
分野	機械学習	機械学習
系統	Machine learning	Machine learning
提唱年	2001	2001
提唱者	Oza, N. C. & Russell, S.	Friedman, J. H.
種類	Online ensemble (incremental boosting)	Ensemble (sequential boosting of decision trees)
原典	Oza, N. C., & Russell, S. (2001). Online Bagging and Boosting. In Artificial Intelligence and Statistics 2001 (pp. 105–112). Morgan Kaufmann.	Friedman, J. H. (2001). Greedy Function Approximation: A Gradient Boosting Machine. Annals of Statistics, 29(5), 1189–1232.
別名	streaming boosting, incremental boosting, online AdaBoost, online ensemble boosting	Gradient Boosting (GBM), GBM, gradient boosted trees, gradient boosting machine
関連	6	5
概要	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.	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.