Results 21 to 30 of about 201,170 (293)

Mixed Effects Models with Censored Covariates, with Applications in HIV/AIDS Studies

open access: yesJournal of Probability and Statistics, 2018
Mixed effects models are widely used for modelling clustered data when there are large variations between clusters, since mixed effects models allow for cluster-specific inference.
Lang Wu, Hongbin Zhang
doaj   +1 more source

Model Calibration With Censored Data

open access: yesTechnometrics, 2018
AbstractThe purpose of model calibration is to make the model predictions closer to reality. The classical Kennedy-O'Hagan approach is widely used for model calibration, which can account for the inadequacy of the computer model while simultaneously estimating the unknown calibration parameters.
Fang Cao   +3 more
openaire   +2 more sources

Prediction of Clinical Scores from Neuroimaging Data with Censored Likelihood Gaussian Processes [PDF]

open access: yes, 2016
In this paper, we explore the use of Censored Likelihoods in Gaussian Process Regression when predicting bounded clinical scores from neuroimaging data. The standard approach, which uses a Gaussian Likelihood, does not respect the fact that the clinical ...
Monteiro, J, Mourao-Miranda, J, Rao, A
core   +1 more source

spBayesSurv: Fitting Bayesian Spatial Survival Models Using R

open access: yesJournal of Statistical Software, 2020
Spatial survival analysis has received a great deal of attention over the last 20 years due to the important role that geographical information can play in predicting survival.
Haiming Zhou   +2 more
doaj   +1 more source

Modeling left-truncated and right-censored survival data with longitudinal covariates [PDF]

open access: yes, 2012
There is a surge in medical follow-up studies that include longitudinal covariates in the modeling of survival data. So far, the focus has been largely on right-censored survival data.
Su, Yu-Ru, Wang, Jane-Ling
core   +1 more source

Impact of Censored or Penalized Data in the Genetic Evaluation of Two Longevity Indicator Traits Using Random Regression Models in North American Angus Cattle

open access: yesAnimals, 2021
This study aimed to evaluate the impact of different proportions (i.e., 20%, 40%, 60% and 80%) of censored (CEN) or penalized (PEN) data in the prediction of breeding values (EBVs), genetic parameters, and computational efficiency for two longevity ...
Hinayah R. Oliveira   +3 more
doaj   +1 more source

Models for Longitudinal Data with Censored Changepoints

open access: yesJournal of the Royal Statistical Society Series C: Applied Statistics, 2004
SummaryIn longitudinal studies of biological markers, different individuals may have different underlying patterns of response. In some applications, a subset of individuals experiences latent events, causing an instantaneous change in the level or slope of the marker trajectory.
Jackson, Christopher H.   +1 more
openaire   +1 more source

Comparing Survival Curves Using Rank Tests [PDF]

open access: yes, 1990
Survival times of patients can be compared using rank tests in various experimental setups, including the two-sample case and the case of paired data. Attention is focussed on two frequently occurring complications in medical applications: censoring and ...
Albers   +10 more
core   +3 more sources

Weighted Empirical Likelihood for Accelerated Life Model with Various Types of Censored Data

open access: yesStats
In analysis of survival data, the Accelerated Life Model (ALM) is one of the widely used semiparametric models, and we often encounter various types of censored survival data, such as right censored data, doubly censored data, interval censored data ...
Jian-Jian Ren, Yiming Lyu
doaj   +1 more source

Comparison among three approaches for evaluation of sexual precocity in Nellore cattle

open access: yesAnimal, 2007
Restricted breeding seasons used in beef cattle produce censored data for reproduction traits measured in regard to these seasons. To analyze these data, adequate methods must be used. The objective of this paper was to compare three approaches aiming to
E. Pereira   +4 more
doaj   +1 more source

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