Results 221 to 230 of about 123,927 (253)

Almost unbiased Liu-type estimators in gamma regression model

Journal of Computational and Applied Mathematics, 2022
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Yasin Asar, Merve Korkmaz
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A new Liu-type estimator in linear regression model

Statistical Papers, 2010
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Yalian Li, Hu Yang
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Influence Diagnostics in Modified Liu-type Estimator

Calcutta Statistical Association Bulletin, 2016
In regression, it is of interest to detect anomalous observations that exert an unduly large influence on the least squares (LS) analysis. Frequently, the existence of influential data is complicated by the presence of collinearity (see, e.g., Walker and Birch  [1] ).
Hadi Emami, Mostafa Emami
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Improved Liu-type estimator in partial linear model

International Journal of Computer Mathematics, 2015
In this article, a Liu-type estimation is proposed for the vector-parameter in a partial linear model. This new estimator can be regarded as generalization of the restricted least-squares estimator, the restricted ridge estimator and the restricted Liu estimator. We also obtain the asymptotic distributional bias and risk of these estimators and we also
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Adjustive Liu-Type Estimators in Linear Regression Models

Communications in Statistics - Simulation and Computation, 2010
In this article, we aim to put forward the notion of adjustive Liu-type estimator (ALTE) in the linear regression model. First, the explicit expression of the optimal selection of the adjustive factors is derived under the PRESS criterion through matrix techniques. Then, the results are applied to the dataset on Portland cement.
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Liu-type estimator in semiparametric regression models

Journal of Statistical Computation and Simulation, 2009
In this paper, we introduced a Liu-type estimator for the vector of parameters β in a semiparametric regression model. We also obtained the semiparametric restricted Liu-type estimator for the parametric component in a semiparametric regression model. The ideas in the paper are illustrated in a real data example and in a Monte Carlo simulation study.
Akdeniz F., Duran E.A.
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MODIFICATION OF LIU-TYPE ESTIMATOR FOR TWO SUR MODEL

Advances and Applications in Statistics, 2019
Summary: In this paper, we suggest a new biased Liu-Type estimator for the vector of parameters in a two SUR model. This Liu-type two SUR estimator based on ridge estimation. Furthermore, the superiority of this estimator from the ridge estimator and Liu-Type estimator was verified by mean square error (MSE).
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The distribution of stochastic shrinkage biasing parameters of the Liu type estimator

Applied Mathematics and Computation, 2005
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Akdeniz F., Öztürk F.
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Improvement of the Liu‐type Shiller estimator for distributed lag models

Journal of Forecasting, 2017
AbstractThe problem of multicollinearity produces undesirable effects on ordinary least squares (OLS), Almon and Shiller estimators for distributed lag models. Therefore, we introduce a Liu‐type Shiller estimator to deal with multicollinearity for distributed lag models.
Nimet Özbay, Selahattin Kaçıranlar
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Combining the Liu-type estimator and the principal component regression estimator

Statistical Papers, 2013
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