Results 91 to 100 of about 44,356 (305)

On Order Restricted Inference in Multi‐Step Stage Life Testing for a General Family of Distributions

open access: yesNaval Research Logistics (NRL), EarlyView.
ABSTRACT Recently, k$$ k $$‐step stage life testing (SLT) has been proposed by Laumen and Cramer (2021) as a natural extension of progressive censoring with fixed censoring times (PC‐FCT) as well as of simple step‐stress accelerated life testing (SSALT).
Erhard Cramer   +2 more
wiley   +1 more source

Variational Bayesian Quantile Regression with Non-Ignorable Missing Response Data

open access: yesAxioms
For non-ignorable missing response variables, the mechanism of whether the response variable is missing can be modeled through logistic regression. In Bayesian computation, the lack of a conjugate prior for the logistic function poses a significant ...
Juanjuan Zhang   +2 more
doaj   +1 more source

Retirement Consumption Puzzle in Malaysia: Evidence from Bayesian Quantile Regression Model

open access: yesJournal of Probability and Statistics, 2019
The objective of this study is to use the Bayesian quantile regression for studying the retirement consumption puzzle, which is defined as the drop in consumption upon retirement, using the cross-sectional data of the Malaysian Household Expenditure ...
Ros Idayuwati Alaudin   +2 more
doaj   +1 more source

Ensemble Kalman filter in latent space using a variational autoencoder pair

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
The use of the ensemble Kalman filter (EnKF) in strongly nonlinear or constrained atmospheric, oceanographic, or sea‐ice models can be challenging. Applying the EnKF in the latent space of a variational autoencoder (VAE) ensures that the ensemble members satisfy the balances and constraints present in the model.
Ivo Pasmans   +4 more
wiley   +1 more source

Bayesian Quantile Regression for Partial Functional Linear Spatial Autoregressive Model

open access: yesAxioms
When performing Bayesian modeling on functional data, the assumption of normality is often made on the model error and thus the results may be sensitive to outliers and/or heavy tailed data.
Dengke Xu   +3 more
doaj   +1 more source

An Extension of Generalized Linear Models to Finite Mixture Outcome Distributions

open access: yes, 2016
Finite mixture distributions arise in sampling a heterogeneous population. Data drawn from such a population will exhibit extra variability relative to any single subpopulation.
Morel, Jorge G.   +2 more
core   +1 more source

Data assimilation with extremum Monte Carlo methods

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This study presents the extremum Monte Carlo filter as a data assimilation method and, in particular, a variant of the variational approach (three‐ and four‐dimensional variational), where the state estimates are obtained by solving an optimization problem numerically over a space of prediction functions, instead of the state space itself.
Karim Moussa, Siem Jan Koopman
wiley   +1 more source

Modeling regional innovation in Egyptian governorates: Regional knowledge production function approach

open access: yesRegional Science Policy &Practice, EarlyView., 2021
Abstract Knowledge and innovation have become a significant source of modern regional development. The paper aims to study the spatial association of innovation and model innovation, besides critiquing regional innovation policy, using the regional knowledge production function approach.
Mohamed Abouelhassan Ali
wiley   +1 more source

Bayesian composite $$L^p$$-quantile regression

open access: yesMetrika
Abstract $$L^p$$ L p -quantiles are a class of generalized quantiles defined as minimizers of an asymmetric power function. They include both quantiles,
openaire   +2 more sources

Optimal designs for quantile regression models [PDF]

open access: yes, 2011
Despite of their importance optimal designs for quantile regression models have not been developed so far. In this paper we investigate the D-optimal design problem for the location scale nonlinear quantile regression model.
Dette, Holger, Trampisch, Matthias
core  

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