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	Ensemble Linear Regression	Ridge Regression
Ämnesområde	Maskininlärning	Maskininlärning
Familj	Machine learning	Machine learning
Ursprungsår	1996	1970
Upphovsperson	Breiman, L. (bagging framework)	Hoerl, A.E. & Kennard, R.W.
Typ	Ensemble of linear models	L2-regularized linear regression
Ursprungskälla	Breiman, L. (1996). Bagging predictors. Machine Learning, 24(2), 123–140.	Hoerl, A.E. & Kennard, R.W. (1970). Ridge Regression: Biased Estimation for Nonorthogonal Problems. Technometrics, 12(1), 55–67.
Alias	bagged linear regression, aggregated linear regression, stacked linear models, bootstrap-aggregated OLS	Ridge Regresyonu, ridge regresyonu, L2-regularized regression, Tikhonov regularization
Närliggande	6	4
Sammanfattning	Ensemble Linear Regression combines multiple ordinary least-squares models — each fitted on a different bootstrap sample or feature subset — and averages their predictions. The technique, grounded in Breiman's bagging framework (1996), reduces variance and improves predictive stability compared with a single linear regression fit, while retaining the interpretability of linear assumptions.	Ridge Regression is an L2-regularized linear regression method, introduced by Arthur Hoerl and Robert Kennard in 1970, that reduces multicollinearity by adding a penalty on the size of the coefficients. It shrinks coefficients toward zero without setting any of them exactly to zero, producing more stable estimates when predictors are highly correlated.