Results 21 to 30 of about 3,648,084 (297)

A comparative study on the performance of maximum likelihood, generalized least square, scale-free least square, partial least square and consistent partial least square estimators in structural equation modeling [PDF]

open access: yesInternational Journal of Data and Network Science, 2022
Structural equation modeling offers various estimation methods for estimating parameters. The most used method in covariance-based structural equation modeling (CB-SEM) is the maximum likelihood (ML) estimator.
Raudhah Zulkifli   +3 more
doaj   +1 more source

Empirical Likelihood Inference for the Cox Model with Time‐dependent Coefficients via Local Partial Likelihood [PDF]

open access: yesScandinavian Journal of Statistics, 2009
Abstract. The Cox model with time‐dependent coefficients has been studied by a number of authors recently. In this paper, we develop empirical likelihood (EL) pointwise confidence regions for the time‐dependent regression coefficients via local partial likelihood smoothing.
Yanqing Sun, R. Sundaram, Yichuan Zhao
semanticscholar   +3 more sources

Hazard models with varying coefficients for multivariate failure time data [PDF]

open access: yes, 2007
Statistical estimation and inference for marginal hazard models with varying coefficients for multivariate failure time data are important subjects in survival analysis.
Cai, Jianwen   +3 more
core   +3 more sources

A generalized Liu-type estimator for logistic partial linear regression model with multicollinearity

open access: yesAIMS Mathematics, 2023
This paper is concerned with proposing a generalized Liu-type estimator (GLTE) to address the multicollinearity problem of explanatory variable of the linear part in the logistic partially linear regression model.
Dayang Dai , Dabuxilatu Wang
doaj   +1 more source

Stress-strength reliability under partially accelerated life testing using Weibull model

open access: yesScientific African, 2023
The reliability of a system is the probability that its strength exceeds its stress. This reliability is called as the stress-strength reliability. The inferences of the stress-strength reliability R=P(X>Y), when: (1) the strength (X) and stress (Y) are ...
Ammar M. Sarhan, Ahlam H. Tolba
doaj   +1 more source

A SAS Package for Logistic Two-Phase Studies

open access: yesJournal of Statistical Software, 2014
Two-phase designs, in which for a large study a dichotomous outcome and partial or proxy information on risk factors is available, whereas precise or complete measurements on covariates have been obtained only in a stratified sub-sample, extend the ...
Walter Schill   +2 more
doaj   +1 more source

Particle Swarm Optimization for Penalize cox models in long-term prediction of breast cancer data

open access: yesIraqi Journal for Computer Science and Mathematics, 2023
The particle swarm optimization algorithm (PSO) was applied to penalize the Cox model for predicting long-term outcomes of breast cancer patients.
Ehab Abbas, Basad Al-Sarray
doaj   +1 more source

Partial quasi-likelihood analysis [PDF]

open access: yesJapanese Journal of Statistics and Data Science, 2018
The quasi likelihood analysis is generalized to the partial quasi likelihood analysis. Limit theorems for the quasi likelihood estimators, especially the quasi Bayesian estimator, are derived in the situation where existence of a slow mixing component prohibits the Rosenthal type inequality from applying to the derivation of the polynomial type large ...
openaire   +3 more sources

Empirical Likelihood for Partial Parameters in ARMA Models with Infinite Variance

open access: yesJournal of Applied Mathematics, 2014
This paper proposes a profile empirical likelihood for the partial parameters in ARMA(p,q) models with infinite variance. We introduce a smoothed empirical log-likelihood ratio statistic. Also, the paper proves a nonparametric version of Wilks’s theorem.
Jinyu Li, Wei Liang, Shuyuan He
doaj   +1 more source

Pseudo-Likelihood Estimation for Parameters of Stochastic Time-Fractional Diffusion Equations

open access: yesFractal and Fractional, 2021
Although stochastic fractional partial differential equations have received increasing attention in the last decade, the parameter estimation of these equations has been seldom reported in literature.
Guofei Pang, Wanrong Cao
doaj   +1 more source

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