Jämför metoder
Granska de valda metoderna sida vid sida; rader som skiljer sig är markerade.
| Robust Gradient Boosting× | Boosting× | |
|---|---|---|
| Ämnesområde | Maskininlärning | Maskininlärning |
| Familj | Machine learning | Machine learning |
| Ursprungsår≠ | 2001 | 1990–1997 |
| Upphovsperson≠ | Friedman, J. H. (with Huber loss from Huber, P. J.) | Schapire, R. E.; Freund, Y. |
| Typ≠ | Ensemble (boosted trees with robust loss) | Sequential ensemble (iterative reweighting) |
| Ursprungskälla≠ | Friedman, J. H. (2001). Greedy function approximation: A gradient boosting machine. Annals of Statistics, 29(5), 1189–1232. DOI ↗ | 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 ↗ |
| Alias | gradient boosting with Huber loss, robust GBM, outlier-robust boosting, robust gradient-boosted trees | AdaBoost, gradient boosting, iterative reweighting ensemble, sequential ensemble |
| Närliggande | 6 | 6 |
| Sammanfattning≠ | Robust Gradient Boosting is gradient boosting trained with outlier-resistant loss functions — most commonly the Huber loss or quantile (pinball) loss — instead of squared-error loss. Proposed in Friedman's seminal 2001 paper, this variant produces predictions far less distorted by extreme values or contaminated labels, while retaining the full predictive power of gradient-boosted trees. | 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. |
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