手法を比較

	正則化スタッキングアンサンブル	投票アンサンブル
分野	機械学習	機械学習
系統	Machine learning	Machine learning
提唱年	1992–1996	1990s–2004
提唱者	Wolpert, D. H. (stacking); Breiman, L. (regularized meta-learner formulation)	Lam & Suen; Kuncheva, L. I. (systematic treatment)
種類	Ensemble (stacked generalization with regularized meta-learner)	Ensemble (combination of multiple classifiers by vote)
原典	Wolpert, D. H. (1992). Stacked generalization. Neural Networks, 5(2), 241–259.	Kuncheva, L. I. (2004). Combining Pattern Classifiers: Methods and Algorithms. Wiley-Interscience. ISBN: 978-0-471-21078-8
別名	regularized stacked generalization, ridge stacking, lasso meta-learner ensemble, penalized stacking	majority voting classifier, hard voting, soft voting ensemble, plurality voting ensemble
関連	6	5
概要	Regularized Stacking Ensemble is a two-level ensemble method in which predictions from multiple diverse base learners are combined by a regularized meta-learner — typically ridge regression, lasso, or elastic net — to suppress overfitting in the combination layer. Regularization ensures that the meta-learner assigns stable, well-calibrated weights to base model outputs rather than memorizing noise in the training fold predictions.	A voting ensemble trains several diverse classifiers independently and combines their predictions by a vote: hard voting picks the class chosen by the most models, while soft voting averages their class-probability estimates, optionally with per-model weights. The combination usually outperforms any individual member, and requires no additional training after the base models are fitted.