方法对比

	贝叶斯装袋法	半监督 Bagging
领域	机器学习	机器学习
方法族	Machine learning	Machine learning
起源年份	2001	2000s
提出者	Clyde, M. & Lee, H. (building on Rubin's Bayesian bootstrap, 1981)	Various (Breiman bagging + semi-supervised extensions, 1990s–2000s)
类型	Ensemble (Bayesian bootstrap aggregation)	Semi-supervised ensemble (bagging variant)
开创性文献	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).	Bennett, K. P., & Demiriz, A. (1999). Semi-supervised support vector machines. Advances in Neural Information Processing Systems, 11. MIT Press.
别名	Bayesian bootstrap aggregation, BB-ensemble, Bayesian model averaging via bootstrap, Bayesian bagged ensemble	SS-Bagging, semi-supervised bootstrap aggregating, self-training bagging, bagging with pseudo-labels
相关	6	4
摘要	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.	Semi-supervised Bagging extends the classical bagging ensemble to settings where labeled training examples are scarce but large amounts of unlabeled data are available. Base learners trained on labeled data assign pseudo-labels to unlabeled examples; the expanded dataset is then used to grow a diverse ensemble whose aggregated vote is more accurate and more stable than any single model trained on the limited labeled set alone.