Results 211 to 220 of about 9,093,191 (259)

Causal associations of circulating C-reactive protein with sarcopenia-related traits: A 2-sample Mendelian randomization study. [PDF]

Medicine (Baltimore)
Li JA, Zhou CH, Liu Z, Guo HB, Liang JY, Zhang Y.   +5 more
europepmc   +1 more source

Multi-layer gut microbiome variation in type 2 diabetes despite preserved higher-order community structure. [PDF]

Front Microbiol
Zhou J, Du P, Liu L, Wang L, Liu S, Yan G.   +5 more
europepmc   +1 more source

Liu-Type Logistic Estimator

Communications in Statistics Part B: Simulation and Computation, 2013
It is known that multicollinearity inflates the variance of the maximum likelihood estimator in logistic regression. Especially, if the primary interest is in the coefficients, the impact of collinearity can be very serious. To deal with collinearity, a ridge estimator was proposed by Schaefer et al. The primary interest of this article is to introduce
Deniz Inan
exaly   +4 more sources

Efficiency of the modified jackknifed Liu-type estimator

Statistical Papers, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Esra Akdeniz Duran
exaly   +4 more sources

Inverse Gaussian Liu-type estimator

Communications in Statistics - Simulation and Computation, 2021
The inverse Gaussian regression (IGR) model parameters are generally estimated using the maximum likelihood (ML) estimation method.
Bulut, YAKUP MURAT, Y. Murat Bulut
openaire   +4 more sources

Robust Liu-type estimator for regression based on M-estimator

Communications in Statistics - Simulation and Computation, 2015
ABSTRACTThe problem of multicollinearity and outliers in the dataset can strongly distort ordinary least-square estimates and lead to unreliable results. We propose a new Robust Liu-type M-estimator to cope with this combined problem of multicollinearity and outliers in the y-direction.
Hasan Ertas, Selahattin Kaçiranlar, Hüseyin Güler   +2 more
openaire   +2 more sources

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.
core   +5 more sources

Robust Liu‐type estimator based on GM estimator

Statistica Neerlandica, 2023
Ordinary Least Squares Estimator (OLSE) is widely used to estimate parameters in regression analysis. In practice, the assumptions of regression analysis are often not met. The most common problems that break these assumptions are outliers and multicollinearity problems. As a result of these problems, OLSE loses efficiency.
Melike Işılar, Y. Murat Bulut
openaire   +4 more sources

Liu-type estimator for the gamma regression model

Communications in Statistics - Simulation and Computation, 2018
In this paper, we propose a new biased estimator called Liu-type estimator in gamma regression models in the presence of collinearity.
Zakariya Yahya Algamal, Yasin Asar
openaire   +3 more sources