Results 21 to 30 of about 294,096 (237)

Testing for mechanistic interactions in long-term follow-up studies. [PDF]

open access: yesPLoS ONE, 2015
In follow-up studies, interactions are often assessed by including a cross-product term in a (multiplicative) Cox model. However, epidemiologists/clinicians often misinterpret a significant multiplicative interaction as a genuine mechanistic interaction.
Jui-Hsiang Lin, Wen-Chung Lee
doaj   +1 more source

Reliability Analysis of Military Vehicles Based on Censored Failures Data

open access: yesApplied Sciences, 2022
The paper proposes a methodology of reliability testing as applied to vehicles used in military transport systems. After estimating the value of the reliability function using the Kaplan–Meier estimator, reliability models were developed and analysed ...
Mateusz Oszczypała   +2 more
doaj   +1 more source

Multiple imputation approach for interval-censored time to HIV RNA viral rebound within a mixed effects Cox model [PDF]

open access: yes, 2018
This is the peer reviewed version of the following article: “Alarcón-Soto, Y, Langohr K., Fehér, C., García, F., and Gómez, G. (2018) Multiple imputation approach for interval-censored time to HIV RNA viral rebound within a mixed effects Cox Model ...
Alarcón Soto, Yovaninna   +4 more
core   +2 more sources

Classical and Bayesian Inference Using Type-II Unified Progressive Hybrid Censored Samples for Pareto Model

open access: yesApplied Bionics and Biomechanics, 2022
In the lifetime and reliability experiments, the censored samples play a fundamental and important role in order to control time and cost. The researchers developed the censored sample schemes to solve the problems that arise by applying the previous ...
M. Nagy, Adel Fahad Alrasheedi
doaj   +1 more source

Optimal Model Averaging for Semiparametric Partially Linear Models with Censored Data

open access: yesMathematics, 2023
In the past few decades, model averaging has received extensive attention, and has been regarded as a feasible alternative to model selection. However, this work is mainly based on parametric model framework and complete dataset.
Guozhi Hu, Weihu Cheng, Jie Zeng
doaj   +1 more source

Bayesian semiparametric inference for multivariate doubly-interval-censored data [PDF]

open access: yes, 2010
Based on a data set obtained in a dental longitudinal study, conducted in Flanders (Belgium), the joint time to caries distribution of permanent first molars was modeled as a function of covariates.
De Iorio, Maria   +3 more
core   +4 more sources

Empirical Density Estimation for Interval Censored Data

open access: yesAustrian Journal of Statistics, 2016
This paper is concerned with the nonparametric estimation of a density function when the data are incomplete due to interval censoring. The Nadaraya-Watson kernel density estimator is modified to allow description of such interval data.
Eugenia Stoimenova
doaj   +1 more source

Uncertainty Interpretation of the Machine Learning Survival Model Predictions

open access: yesIEEE Access, 2021
A method for interpreting uncertainty of predictions provided by machine learning survival models is proposed. It is called UncSurvEx and aims to determine which features of an analyzed example lead to uncertain predictions of an explainable black-box ...
Lev V. Utkin   +5 more
doaj   +1 more source

Tratamento de dados censurados em estudos ambientais

open access: yesQuímica Nova, 2014
Due to the inherent limitations of the analytical methods of measurement, environmental exposure data often present observations described as below a certain detection limit, also called left-censored data. Censored data directly interferes in almost all
Cristiano Christofaro   +1 more
doaj   +1 more source

Monitoring the Weibull Scale Parameter Based on Type I Censored Data Using a Modified EWMA Control Chart

open access: yesAxioms, 2023
In industrial production, the exponentially weighted moving average scheme is widely used to monitor shifts in product quality, especially small-to-moderate shifts.
Dan Yu   +5 more
doaj   +1 more source

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