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| Regularized Stacking Ensemble× | Regularized Random Forest× | |
|---|---|---|
| Tieteenala | Koneoppiminen | Koneoppiminen |
| Menetelmäperhe | Machine learning | Machine learning |
| Syntyvuosi≠ | 1992–1996 | 2012 |
| Kehittäjä≠ | Wolpert, D. H. (stacking); Breiman, L. (regularized meta-learner formulation) | Deng, H. & Runger, G. |
| Tyyppi≠ | Ensemble (stacked generalization with regularized meta-learner) | Regularized ensemble (penalized feature selection in trees) |
| Alkuperäislähde≠ | Wolpert, D. H. (1992). Stacked generalization. Neural Networks, 5(2), 241–259. DOI ↗ | Deng, H., & Runger, G. (2012). Feature selection via regularized trees. Proceedings of the 2012 International Joint Conference on Neural Networks (IJCNN), IEEE, pp. 1–8. DOI ↗ |
| Rinnakkaisnimet | regularized stacked generalization, ridge stacking, lasso meta-learner ensemble, penalized stacking | RRF, Guided Regularized Random Forest, GRRF, regularized tree ensemble |
| Liittyvät≠ | 6 | 5 |
| Tiivistelmä≠ | 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. | Regularized Random Forest (RRF), introduced by Deng and Runger in 2012, extends the standard Random Forest by adding a penalty that discourages splits on features not already used in the ensemble. This built-in regularization produces sparser, less redundant feature subsets, making the model especially valuable when feature selection is as important as predictive accuracy. |
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