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| 중앙값 절대 편차 (MAD) 추정× | 릿지 회귀(Ridge Regression)× | |
|---|---|---|
| 분야≠ | 통계학 | 머신러닝 |
| 계열≠ | Regression model | Machine learning |
| 기원 연도≠ | 1974 | 1970 |
| 창시자≠ | Hampel (influence-curve treatment); classical robust statistics | Hoerl, A.E. & Kennard, R.W. |
| 유형≠ | Robust scale estimator | L2-regularized linear regression |
| 원전≠ | Hampel, F. R. (1974). The Influence Curve and Its Role in Robust Estimation. Journal of the American Statistical Association, 69(346), 383-393. DOI ↗ | Hoerl, A.E. & Kennard, R.W. (1970). Ridge Regression: Biased Estimation for Nonorthogonal Problems. Technometrics, 12(1), 55–67. DOI ↗ |
| 별칭 | median absolute deviation, MAD scale estimator, robust scale estimation, Medyan Mutlak Sapma (MAD) Tahmini | Ridge Regresyonu, ridge regresyonu, L2-regularized regression, Tikhonov regularization |
| 관련≠ | 5 | 4 |
| 요약≠ | Median Absolute Deviation estimation is a robust measure of statistical dispersion that replaces the standard deviation when outliers are present. Rooted in the influence-curve framework formalised by Hampel (1974), it summarises the spread of a continuous variable using medians instead of means, so a single extreme value cannot distort the result. | 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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