手法を比較

	ロバストバギング	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	1996–2000s	1990–1997
提唱者	Breiman, L. (bagging); robust variants developed by various authors in 2000s	Schapire, R. E.; Freund, Y.
種類	Ensemble (robust bootstrap aggregating)	Sequential ensemble (iterative reweighting)
原典	Breiman, L. (1996). Bagging predictors. Machine Learning, 24(2), 123–140.	Freund, Y. & Schapire, R. E. (1997). A decision-theoretic generalization of on-line learning and an application to boosting. Journal of Computer and System Sciences, 55(1), 119–139.
別名	robust bootstrap aggregating, robust ensemble bagging, outlier-resistant bagging, robust BAGGing	AdaBoost, gradient boosting, iterative reweighting ensemble, sequential ensemble
関連	6	6
概要	Robust Bagging extends the classic Bootstrap Aggregating (Bagging) framework by replacing or augmenting standard base learners with robust estimators — or by using robust aggregation rules — so that the ensemble remains accurate even when training data contain outliers, mislabelled instances, or heavy-tailed noise distributions.	Boosting is a sequential ensemble technique that converts many simple, barely-better-than-chance learners into a single highly accurate model by repeatedly focusing training on the examples that previous learners got wrong, then combining all learners with weights proportional to their individual accuracy.