Comparer des méthodes

	Régression par Moindres Carrés Trimés (LTS)	Estimation Robuste de la Covariance (MCD)
Domaine	Statistique	Statistique
Famille	Regression model	Regression model
Année d'origine	1984	1999
Auteur d'origine	Peter J. Rousseeuw	Rousseeuw; Rousseeuw & Van Driessen (Fast-MCD)
Type	Robust linear regression	Robust multivariate location-scatter estimator
Source fondatrice	Rousseeuw, P. J. (1984). Least Median of Squares Regression. Journal of the American Statistical Association, 79(388), 871-880.	Rousseeuw, P. J. & Van Driessen, K. (1999). A Fast Algorithm for the Minimum Covariance Determinant Estimator. Technometrics, 41(3), 212-223.
Alias	LTS, least trimmed squares regression, trimmed least squares, robust regression	minimum covariance determinant, MCD estimator, robust covariance estimation, Robust Kovaryans Tahmini (MCD)
Apparentées	5	4
Résumé	Least Trimmed Squares is a robust linear regression method introduced by Peter J. Rousseeuw in 1984. Instead of fitting all residuals, it estimates the coefficients by minimising the sum of only the h smallest squared residuals, which gives it a breakdown point of up to 50% and reliable estimates on data heavily contaminated by outliers.	Robust Covariance via the Minimum Covariance Determinant (MCD) estimates a multivariate mean vector and covariance matrix that are not distorted by outliers. It was made practical by the Fast-MCD algorithm of Rousseeuw and Van Driessen (1999), building on Rousseeuw's earlier work on robust estimation.