So sánh phương pháp

	Ensemble tăng cường	Ensemble Bagging
Lĩnh vực	Học kết hợp	Học kết hợp
Họ	Machine learning	Machine learning
Năm ra đời	1990	1996
Người khởi xướng	Robert Schapire	Leo Breiman
Loại	sequential ensemble	parallel ensemble
Công trình gốc	Schapire, R. E. (1990). The strength of weak learnability. Machine Learning, 5(2), 197-227.	Breiman, L. (1996). Bagging predictors. Machine Learning, 24(2), 123-140.
Tên gọi khác	adaptive boosting, sequential ensemble	bootstrap aggregating
Liên quan	4	4
Tóm tắt	Boosting is an ensemble method that sequentially trains weak learners and combines them into a strong predictor by focusing on samples that previous models misclassified. Each new weak learner is weighted according to the difficulty of its training task, and final predictions are made via weighted voting. Pioneered by Schapire (1990) and refined in AdaBoost (Freund & Schapire, 1997), boosting converts weak learners (barely better than random) into strong learners through sequential reweighting.	Bagging, short for bootstrap aggregating, is an ensemble method that reduces variance by training multiple copies of a single learning algorithm on different random subsets of the training data. Each subset is created via bootstrap sampling—randomly drawing samples with replacement. Predictions are combined through majority voting (classification) or averaging (regression). Introduced by Leo Breiman in 1996, bagging forms the foundation for random forests and is particularly effective for reducing overfitting in high-variance models.