Results 11 to 20 of about 17,358,302 (310)

Improved regression in ratio type estimators based on robust M-estimation.

open access: yesPLoS ONE, 2022
In this article, a new robust ratio type estimator using the Uk's redescending M-estimator is proposed for the estimation of the finite population mean in the simple random sampling (SRS) when there are outliers in the dataset. The mean square error (MSE)
Khalid Ul Islam Rather   +3 more
doaj   +1 more source

M Robust Weighted Ridge Estimator in Linear Regression Model

open access: yesAfrican Scientific Reports, 2023
Correlated regressors are a major threat to the performance of the conventional ordinary least squares (OLS) estimator. The ridge estimator provides more stable estimates in this circumstance.
Taiwo Stephen Fayose   +2 more
doaj   +1 more source

Fast estimation of epipolar geometry using high breakdown M-estimators [PDF]

open access: yes, 2007
The high breakdown M-estimator (HBM) is introduced in this paper as an outstanding choice compared to modern high breakdown estimators for epipolar geometry estimation and motion segmentation problems.
Alireza Bab-Hadiashar (11003007)   +1 more
core   +1 more source

Robust regression trees based on M-estimators

open access: yesStatistica, 2013
The paper addresses the problem of robustness of regression trees with respect to outlying values in the dependent variable. New robust tree-based procedures are described, which are obtained by introducing in the tree building phase some objective ...
Giuliano Galimberti   +2 more
doaj   +1 more source

On Inconsistent $M$-Estimators

open access: yesThe Annals of Statistics, 1982
If $M$ is not convex, and the underlying density is multi-modal, $M$-estimators can be inconsistent. Examples are given, as well as some positive results.
Freedman, D. A., Diaconis, P.
openaire   +3 more sources

De-Biasing Weighted MLE Via Indirect Inference: The Case of Generalized Linear Latent Variable Models

open access: yesRevstat Statistical Journal, 2007
In this paper we study bias-corrections to the weighted MLE (Dupuis and Morgenthaler, 2002), a robust estimator simply defined through a weighted score function.
Maria-Pia Victoria-Feser
doaj   +1 more source

Regularity and Uniqueness for Constrained M-Estimates and Redescending M-Estimates

open access: yesThe Annals of Statistics, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kent, John T., Tyler, David E.
openaire   +3 more sources

Characterization of the asymptotic distribution of semiparametric M-estimators [PDF]

open access: yes, 2010
This paper develops a concrete formula for the asymptotic distribution of two-step, possibly non-smooth semiparametric M-estimators under general misspecification.
Sokbae Lee   +5 more
core   +1 more source

Optimal B-Robust Estimation for the Parameters of the Marshall-Olkin Extended Burr XII Distribution with an Application to Pharmacokinetics

open access: yesRevstat Statistical Journal, 2021
Parameters of Marshall–Olkin Extended Burr XII (MOEBXII) distribution are usually estimated using maximum likelihood (ML) and least squares (LS) estimation methods.
Yeşim Güney   +3 more
doaj   +1 more source

Empirical tests of performance of some M – estimators

open access: yesGeodesy and Cartography, 2014
W artykule przedstawiono empiryczne porównanie trzech dobrze znanych M - estymatorów (Huber’a, Tukey’a oraz Hampel’a) jak również kilku nowych. Nowe estymatory motywowane były funkcjami wagowymi wykorzystywanymi w teorii wielomianów ortogonalnych ...
Banaś Marek, Ligas Marcin
doaj   +1 more source

Home - About - Disclaimer - Privacy