Σύγκριση μεθόδων

	Robust LightGBM	CatBoost	Ενίσχυση Κλίσης (Gradient Boosting)
Πεδίο	Μηχανική Μάθηση	Μηχανική Μάθηση	Μηχανική Μάθηση
Οικογένεια	Machine learning	Machine learning	Machine learning
Έτος προέλευσης	2017 (LightGBM); robust variants widely adopted 2018–present	2018	2001
Δημιουργός	Ke, G. et al. (LightGBM); robust objectives adapted from Friedman, J. H.	Prokhorenkova, L. et al. (Yandex)	Friedman, J. H.
Τύπος	Ensemble (gradient boosted decision trees with robust loss)	Gradient boosting on decision trees	Ensemble (sequential boosting of decision trees)
Θεμελιώδης πηγή	Ke, G., Meng, Q., Finley, T., Wang, T., Chen, W., Ma, W., Ye, Q., & Liu, T.-Y. (2017). LightGBM: A Highly Efficient Gradient Boosting Decision Tree. Advances in Neural Information Processing Systems, 30, 3146–3154.	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.
Εναλλακτικές ονομασίες	Robust LGBM, LightGBM with Huber loss, outlier-resistant gradient boosting, robust gradient boosted trees	CatBoost (Categorical Boosting), categorical boosting, ordered boosting, kategorik gradyan artırma	Gradient Boosting (GBM), GBM, gradient boosted trees, gradient boosting machine
Συναφείς	6	5	5
Σύνοψη	Robust LightGBM is a gradient boosting framework that pairs Microsoft's highly efficient LightGBM engine with outlier-resistant loss functions — most commonly Huber, quantile, or mean absolute error — so that predictions are not unduly distorted by extreme or erroneous observations. It retains LightGBM's speed and leaf-wise tree growth while providing resistance to heavy-tailed noise in the target variable.	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.