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	ベイジアン・バギング	ベイズブースティング	ベイズランダムフォレスト	ランダムフォレスト
分野	機械学習	機械学習	機械学習	機械学習
系統	Machine learning	Machine learning	Machine learning	Machine learning
提唱年	2001	1999–2010	2015	2001
提唱者	Clyde, M. & Lee, H. (building on Rubin's Bayesian bootstrap, 1981)	Ridgeway, G.; Chipman, H. A. et al.	Taddy, M. et al.	Breiman, L.
種類	Ensemble (Bayesian bootstrap aggregation)	Probabilistic ensemble (Bayesian interpretation of boosting)	Bayesian ensemble of decision trees	Ensemble (bagging of decision trees)
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.	Taddy, M., Chen, C., Yu, J., & Wyle, M. (2015). Bayesian and Empirical Bayesian Forests. Proceedings of the 32nd International Conference on Machine Learning (ICML 2015), PMLR 37, 967–976.	Breiman, L. (2001). Random Forests. Machine Learning, 45, 5–32.
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	Bayesian Forest, BRF, Empirical Bayesian Forest, posterior random forest	Rastgele Orman (Random Forest), rastgele orman, random decision forest, bagged tree ensemble
関連	6	5	5	4
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.	Bayesian Random Forest extends the classical random forest by placing a prior distribution over tree structures and leaf parameters, then sampling or approximating the posterior over that ensemble. The result is a set of predictions accompanied by calibrated uncertainty estimates — a capability standard random forests lack — making it valuable when knowing how confident the model is matters as much as the prediction itself.	Random Forest is an ensemble learning method, introduced by Leo Breiman in 2001, that grows many decision trees on bootstrap samples of the data and combines their votes to produce strong classification and regression. By pooling many slightly different trees, it produces more accurate and more stable predictions than any single tree.