Browsing Statistics and Actuarial Science by Type "Article"
Now showing items 61-71 of 71
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Sieve estimation in a Markov illness-death process under dual censoring
(Oxford Journals, 2016-02-29)Semiparametric methods are well-established for the analysis of a progressive Markov illness-death process observed up to a noninformative right censoring time. However often the intermediate and terminal events are ... -
Statistical Issues in Modeling Chronic Disease in Cohort Studies
(Springer, 2014)Observational cohort studies of individuals with chronic disease provide information on rates of disease progression, the effect of fixed and time-varying risk factors, and the extent of heterogeneity in the course of ... -
Statistical methods for incomplete data: Some results on model misspecification
(Sage Publishing, 2017-02-01)Inverse probability weighted estimating equations and multiple imputation are two of the most studied frameworks for dealing with incomplete data in clinical and epidemiological research. We examine the limiting behaviour ... -
Stochastic decomposition for ℓp-norm symmetric survival functions on the positive orthant
(Elsevier, 2021-07)We derive a stochastic representation for the probability distribution on the positive orthant (0,∞)ᵈ whose association between components is minimal among all probability laws with ℓp-norm symmetric survival functions. ... -
Technological strategies to estimate and control diffusive passage times through the mucus barrier in mucosal drug delivery
(Elsevier, 2018-01-01)In mucosal drug delivery, two design goals are desirable: 1) insure drug passage through the mucosal barrier to the epithelium prior to drug removal from the respective organ via mucus clearance: and 2) design carrier ... -
Tracing studies in cohorts with attrition: Selection models for efficient sampling
(Wiley, 2018-07-10)Cohort studies of chronic diseases involve recruitment and longitudinal followup of affected individuals with a view to studying the effect of risk factors on disease progression and death. When the time to withdrawal from ... -
A two-phase model for chronic disease processes under intermittent inspection
(Wiley, 2017-06-15)A model is developed for chronic diseases with an indolent phase that is followed by a phase with more active disease resulting in progression and damage. The time scales for the intensity functions for the active phase ... -
The Unobserved Waiting Customer Approximation
(Springer, 2021-06-02)We introduce a new approximation procedure to improve the accuracy of matrix analytic methods when using truncated queueing models to analyse infinite buffer systems. This is accomplished through emulating the presence of ... -
Using Available Information in the Assessment of Diagnostic Protocols
(OMICS International, 2015-02-20)A new binary screening or diagnostic test may be combined sequentially with an existing test using either a believe the positive or believe the negative protocol. Interest then lies in estimating the properties of the new ... -
Variable selection and prediction in biased samples with censored outcomes
(Springer, 2018-01-01)With the increasing availability of large prospective disease registries, scientists studying the course of chronic conditions often have access to multiple data sources, with each source generated based on its own entry ... -
Waiting Time Distributions in the Preemptive Accumulating Priority Queue
(Springer, 2017-03-01)We consider a queueing system in which a single server attends to N priority classes of customers. Upon arrival to the system, a customer begins to accumulate priority linearly at a rate which is distinct to the class to ...