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| Modello a Effetti Misti× | Regressione Ridge× | |
|---|---|---|
| Campo≠ | Statistica | Apprendimento automatico |
| Famiglia≠ | Regression model | Machine learning |
| Anno di origine≠ | 1982 | 1970 |
| Ideatore≠ | Laird & Ware | Hoerl, A.E. & Kennard, R.W. |
| Tipo≠ | Mixed effects regression | L2-regularized linear regression |
| Fonte seminale≠ | Laird, N. M., & Ware, J. H. (1982). Random-effects models for longitudinal data. Biometrics, 38(4), 963–974. DOI ↗ | Hoerl, A.E. & Kennard, R.W. (1970). Ridge Regression: Biased Estimation for Nonorthogonal Problems. Technometrics, 12(1), 55–67. DOI ↗ |
| Alias | LME, LMM, mixed model, random effects model | Ridge Regresyonu, ridge regresyonu, L2-regularized regression, Tikhonov regularization |
| Correlati | 4 | 4 |
| Sintesi≠ | A mixed effects model (or linear mixed model) extends ordinary regression by including both fixed effects — population-level parameters shared by all observations — and random effects that capture subject-, group-, or cluster-level variability. It is the standard tool for repeated-measures, longitudinal, and multilevel data where observations within the same unit are correlated. | 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. |
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