Results 11 to 20 of about 628,696 (290)
Flexible boosting of accelerated failure time models [PDF]
Background When boosting algorithms are used for building survival models from high-dimensional data, it is common to fit a Cox proportional hazards model or to use least squares techniques for fitting semiparametric accelerated failure time models ...
Hothorn Torsten, Schmid Matthias
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Nonparametric identification of accelerated failure time competing risks models [PDF]
We provide new conditions for identification of accelerated failure time competing risks models. These include Roy models and some auction models. In our set up, unknown regression functions and the joint survivor function of latent disturbance terms are
Arthur Lewbel, Sokbae 'Simon' Lee
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A flexible parametric accelerated failure time model and the extension to time-dependent acceleration factors. [PDF]
Summary Accelerated failure time (AFT) models are used widely in medical research, though to a much lesser extent than proportional hazards models. In an AFT model, the effect of covariates act to accelerate or decelerate the time to event of interest, that is, shorten or extend the time to event.
Crowther MJ, Royston P, Clements M.
europepmc +3 more sources
Re: Spline‐based accelerated failure time model
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mark Clements +3 more
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Multi-threshold accelerated failure time model [PDF]
A two-stage procedure for simultaneously detecting multiple thresholds and achieving model selection in the segmented accelerate failure time (AFT) model is developed in this paper. In the first stage, we formulate the threshold problem as a group model selection problem so that a concave 2-norm group selection method can be applied.
Li, Jialiang, Jin, Baisuo
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Identification of a competing risks model with unknown transformations of latent failure times [PDF]
This paper is concerned with identification of a competing risks model with unknown transformations of latent failure times. The model in this paper includes, as special cases, competing risks versions of proportional hazards, mixed proportional ...
Lee, S.
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Using the Weibull Accelerated Failure Time Regression Model to Predict Time to Health Events
Clinical prediction models are commonly utilized in clinical practice to screen high-risk patients. This enables healthcare professionals to initiate interventions aimed at delaying or preventing adverse medical events.
Enwu Liu, Ryan Yan Liu, Karen Lim
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Indian Perspectives on Graft Materials Used for Repair of Tympanic Membrane [PDF]
Introduction: Repair of Tympanic Membrane (TM) is one of the most common surgeries performed by the otologists. Literature reveals that Indian surgeons have contributed substantially in the research on techniques and graft materials used for the ...
Manu Malhotra +3 more
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An accelerated life test of a product or material consists of the observation of its failure time when it is subjected to conditions that stress the usual ones.
Irene Mariñas-Collado +3 more
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Survival analysis of women breast cancer patients in Northwest Amhara, Ethiopia
IntroductionBreast cancer, the most common cause of cancer death and the most frequently diagnosed cancer among women worldwide, ranks as the second cause of death next to lung cancer.
Bereket Feleke +3 more
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