Salīdzināt metodes
Apskatiet izvēlētās metodes blakus; rindas, kas atšķiras, ir izceltas.
| Regularizēts "Stacking" ansamblis× | Regularizēta gradientu pastiprināšana× | |
|---|---|---|
| Nozare | Mašīnmācīšanās | Mašīnmācīšanās |
| Saime | Machine learning | Machine learning |
| Izcelsmes gads≠ | 1992–1996 | 2001 (gradient boosting); 2016 (explicit L1/L2 regularization in XGBoost) |
| Autors≠ | Wolpert, D. H. (stacking); Breiman, L. (regularized meta-learner formulation) | Chen, T. & Guestrin, C. (building on Friedman, J. H.) |
| Tips≠ | Ensemble (stacked generalization with regularized meta-learner) | Regularized ensemble (additive tree model) |
| Pirmavots≠ | Wolpert, D. H. (1992). Stacked generalization. Neural Networks, 5(2), 241–259. DOI ↗ | Chen, T. & Guestrin, C. (2016). XGBoost: A scalable tree boosting system. Proceedings of the 22nd ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, 785–794. DOI ↗ |
| Citi nosaukumi | regularized stacked generalization, ridge stacking, lasso meta-learner ensemble, penalized stacking | penalized gradient boosting, shrinkage-regularized boosting, XGBoost-style regularization, L1/L2 gradient boosting |
| Saistītās | 6 | 6 |
| Kopsavilkums≠ | 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 gradient boosting extends the classic additive tree ensemble (Friedman 2001) by embedding L1 and L2 penalty terms directly into the training objective, along with a complexity penalty on tree size. Popularized by XGBoost (Chen & Guestrin 2016), this framework reduces overfitting and improves generalization compared to unpenalized boosting, while retaining the method's characteristic accuracy on tabular data. |
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