手法を比較

	ベイジアン・バギング	ベイズブースティング
分野	機械学習	機械学習
系統	Machine learning	Machine learning
提唱年	2001	1999–2010
提唱者	Clyde, M. & Lee, H. (building on Rubin's Bayesian bootstrap, 1981)	Ridgeway, G.; Chipman, H. A. et al.
種類	Ensemble (Bayesian bootstrap aggregation)	Probabilistic ensemble (Bayesian interpretation of boosting)
原典	Clyde, M. & Lee, H. (2001). Bagging and the Bayesian bootstrap. In T. Richardson & T. Jaakkola (Eds.), Proceedings of the Eighth International Workshop on Artificial Intelligence and Statistics (AISTATS 2001).	Ridgeway, G. (1999). The state of boosting. Computing Science and Statistics, 31, 172–181.
別名	Bayesian bootstrap aggregation, BB-ensemble, Bayesian model averaging via bootstrap, Bayesian bagged ensemble	Bayesian ensemble boosting, probabilistic boosting, Bayesian additive model, Bayesian boosted ensemble
関連	6	5
概要	Bayesian Bagging replaces the classical bootstrap with the Bayesian bootstrap — drawing Dirichlet-distributed weights over training observations rather than sampling with replacement — and trains an ensemble of base learners under those weights. The result is a principled ensemble that approximates a Bayesian posterior over predictions, yielding calibrated uncertainty estimates alongside strong predictive accuracy.	Bayesian boosting integrates probabilistic Bayesian inference with boosting ensemble techniques, combining multiple weak learners while maintaining full uncertainty quantification over predictions. Unlike standard gradient boosting that produces a single point estimate, Bayesian boosting yields a posterior distribution over the ensemble output, enabling calibrated confidence intervals alongside predictions.