Vertaile menetelmiä
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| Bagging (Bootstrap Aggregating)× | Pinottava yleistys (Stacking)× | |
|---|---|---|
| Tieteenala | Koneoppiminen | Koneoppiminen |
| Menetelmäperhe | Machine learning | Machine learning |
| Syntyvuosi≠ | 1996 | 1992 |
| Kehittäjä≠ | Breiman, L. | Wolpert, D.H. |
| Tyyppi≠ | Ensemble meta-algorithm (variance reduction via bootstrap aggregation) | Ensemble (heterogeneous meta-learning) |
| Alkuperäislähde≠ | Breiman, L. (1996). Bagging Predictors. Machine Learning, 24(2), 123–140. DOI ↗ | Wolpert, D.H. (1992). Stacked Generalization. Neural Networks, 5(2), 241–259. DOI ↗ |
| Rinnakkaisnimet | Bootstrap Aggregating, bootstrap aggregation, bagged ensemble, bagged predictor | Stacking (Yığınlama — Meta-Öğrenme), stacked generalization, meta-learning ensemble, super learner |
| Liittyvät | 5 | 5 |
| Tiivistelmä≠ | Bagging, short for Bootstrap Aggregating, is an ensemble meta-algorithm introduced by Leo Breiman in 1996 that trains multiple copies of a base learner on independently drawn bootstrap samples of the training data and combines their predictions — by averaging for regression or majority vote for classification — to produce a final predictor with substantially lower variance than any single base learner. | Stacking, or stacked generalization, is an ensemble method introduced by David Wolpert in 1992 that combines the outputs of several different base models (Level-0) through a separate meta-model (Level-1). Unlike bagging and boosting, it deliberately uses heterogeneous model types, and it is the standard final-stage strategy in Kaggle competitions. |
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