Compară metode

	Generalizare stratificată (Stacked Generalization)	Ansamblu de boosting
Domeniu	Învățare prin ansambluri	Învățare prin ansambluri
Familie	Machine learning	Machine learning
Anul apariției	1992	1990
Autorul original	David Wolpert	Robert Schapire
Tip	meta-learning aggregation	sequential ensemble
Sursa seminală	Wolpert, D. H. (1992). Stacked generalization. Neural Networks, 5(2), 241-259.	Schapire, R. E. (1990). The strength of weak learnability. Machine Learning, 5(2), 197-227.
Denumiri alternative	stacking, meta-learning	adaptive boosting, sequential ensemble
Înrudite	3	4
Rezumat	Stacked generalization, or stacking, is a two-level ensemble method where base-level classifiers are trained on the original data, and a meta-learner is trained on the predictions of the base classifiers. The meta-learner learns how to best combine base predictions rather than using fixed aggregation rules. Introduced by David Wolpert in 1992, stacking achieves state-of-the-art performance by automatically learning the optimal weighting and interaction patterns among base models.	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.