نتایج جستجو برای: dependent covariate

تعداد نتایج: 693421  

Journal: :South African Statistical Journal 2021

Spatial autoregressive combined (SAC) model has been widely studied in the literature for analysis of spatial data various areas such as geography, economics, demography, regional sciences. This is a linear with scalar response, explanatory variables and which allows interactions dependent variable disturbances. In this work we extend modeling approach from to functional covariate. The paramete...

2012
Fabrizio Leisen Carlos III de Madrid Antonio Lijoi F. Leisen

The definition of vectors of dependent random probability measures is a topic of interest in applications to Bayesian statistics. They, indeed, represent dependent nonparametric prior distributions that are useful for modelling observables for which specific covariate values are known. In this paper we propose a vector of two-parameter Poisson-Dirichlet processes. It is well-known that each com...

Journal: :J. Multivariate Analysis 2010
María Paz Casanova Pilar Loreto Iglesias Heleno Bolfarine Victor H. Salinas Alexis Peña

This work introduces a Bayesian semi-parametric approach for dealing with regression models where the covariate is measured with error. The main advantage of this extended Bayesian approach is the possibility of considering generalizations of the elliptical family of models by using Dirichlet process priors in the dependent and independent situations. Conditional posterior distributions are imp...

2011
Mingyuan Zhou Hongxia Yang Guillermo Sapiro David Dunson Lawrence Carin

A computationally efficient landmark-dependent hierarchical beta process is developed as a prior for data with associated covariates. The landmarks define local regions in the covariate space where feature usages are likely to be similar. The landmark locations are learned, to which the data are linked through normalized kernels. The proposed model is well suited for local latent feature discov...

2014
Avideh Sabeti Mian Wei Radu V. Craiu

Conditional copulas are flexible statistical tools that couple joint conditional and marginal conditional distributions. In a linear regression setting with more than one covariate and two dependent outcomes, we consider additive models for studying the dependence between covariates and the copula parameter. We examine the computation and model selection tools needed for Bayesian inference. The...

Journal: :European Journal of Operational Research 2015

2006
Haimeng Zhang Chunfeng Huang HAIMENG ZHANG CHUNFENG HUANG

A nonparametric analysis of time-dependent covariate effects on failures determined by a regression function β0(t) in Cox’s regression model based on case-cohort sampling design is developed. The analysis is carried out through maximizing appropriate penalized pseudolikelihoods. Weak uniform consistency and pointwise asymptotic normality of the resulting estimators are investigated under regula...

Journal: :Journal of the American Statistical Association 1997

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