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| Boosting× | Gradient Boosting× | Tăng cường có điều chuẩn hóa× | |
|---|---|---|---|
| Lĩnh vực | Học máy | Học máy | Học máy |
| Họ | Machine learning | Machine learning | Machine learning |
| Năm ra đời≠ | 1990–1997 | 2001 | 2001–2016 |
| Người khởi xướng≠ | Schapire, R. E.; Freund, Y. | Friedman, J. H. | Friedman, J. H.; extended by Chen & Guestrin |
| Loại≠ | Sequential ensemble (iterative reweighting) | Ensemble (sequential boosting of decision trees) | Regularized ensemble (boosting with shrinkage/penalty) |
| Công trình gốc≠ | Freund, Y. & Schapire, R. E. (1997). A decision-theoretic generalization of on-line learning and an application to boosting. Journal of Computer and System Sciences, 55(1), 119–139. DOI ↗ | Friedman, J. H. (2001). Greedy Function Approximation: A Gradient Boosting Machine. Annals of Statistics, 29(5), 1189–1232. DOI ↗ | Friedman, J. H. (2001). Greedy function approximation: A gradient boosting machine. Annals of Statistics, 29(5), 1189–1232. DOI ↗ |
| Tên gọi khác | AdaBoost, gradient boosting, iterative reweighting ensemble, sequential ensemble | Gradient Boosting (GBM), GBM, gradient boosted trees, gradient boosting machine | shrinkage boosting, penalized boosting, regularized gradient boosting, L1/L2 boosting |
| Liên quan≠ | 6 | 5 | 5 |
| Tóm tắt≠ | Boosting is a sequential ensemble technique that converts many simple, barely-better-than-chance learners into a single highly accurate model by repeatedly focusing training on the examples that previous learners got wrong, then combining all learners with weights proportional to their individual accuracy. | Gradient Boosting is an ensemble learning method, formalised by Jerome H. Friedman in 2001, that combines a sequence of weak learners — typically shallow decision trees — so that each new tree is fitted to minimise the residual errors of the trees before it. It is the core algorithm behind popular implementations such as XGBoost, LightGBM and CatBoost. | Regularized boosting extends gradient boosting by adding explicit controls — shrinkage (learning rate), L1/L2 weight penalties, subsampling, and tree-complexity limits — to the objective function and the update rule. These constraints reduce overfitting, stabilise the model on noisy or small datasets, and are the core reason why systems such as XGBoost and LightGBM consistently outperform vanilla boosting on real-world tabular benchmarks. |
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