Compara mètodes

	CatBoost	Gradient Boosting	Regressió de Huber
Camp	Aprenentatge automàtic	Aprenentatge automàtic	Estadística
Família	Machine learning	Machine learning	Regression model
Any d'origen	2018	2001	1964
Autor original	Prokhorenkova, L. et al. (Yandex)	Friedman, J. H.	Peter J. Huber
Tipus	Gradient boosting on decision trees	Ensemble (sequential boosting of decision trees)	Robust linear regression (M-estimation)
Font seminal	Prokhorenkova, L., Gusev, G., Vorobev, A., Dorogush, A.V. & Gulin, A. (2018). CatBoost: Unbiased Boosting with Categorical Features. In NeurIPS 2018.	Friedman, J. H. (2001). Greedy Function Approximation: A Gradient Boosting Machine. Annals of Statistics, 29(5), 1189–1232.	Huber, P. J. (1964). Robust Estimation of a Location Parameter. Annals of Mathematical Statistics, 35(1), 73-101.
Àlies	CatBoost (Categorical Boosting), categorical boosting, ordered boosting, kategorik gradyan artırma	Gradient Boosting (GBM), GBM, gradient boosted trees, gradient boosting machine	Huber M-estimator, Huber loss regression, robust regression, Huber Regresyonu
Relacionats	5	5	5
Resum	CatBoost is a gradient boosting algorithm, introduced by Prokhorenkova and colleagues at Yandex in 2018, that handles categorical variables natively and uses ordered target encoding to avoid label leakage. By building an additive ensemble of trees while permuting the data order at each iteration, it is often superior to XGBoost and LightGBM on category-heavy data.	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.	Huber regression is a robust linear regression method, introduced by Peter J. Huber in 1964, that resists the influence of outliers by treating small and large residuals differently. It applies a squared (OLS-like) loss to small residuals and a milder absolute-value loss to large ones, so extreme observations cannot dominate the fit.