2021
DOI: 10.1007/s42081-021-00128-w
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Semiparametric likelihood inference for heterogeneous survival data under double truncation based on a Poisson birth process

Abstract: We study a selective sampling scheme in which survival data are observed during a data collection period if and only if a specific failure event is experienced. Individual units belong to one of a finite number of subpopulations, which may exhibit different survival behaviour, and thus cause heterogeneity. Based on a Poisson process model for individual emergence of population units, we derive a semiparametric likelihood model, in which the birth distribution is modeled nonparametrically and the lifetime distr… Show more

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Cited by 7 publications
(5 citation statements)
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“…Doubly-truncated data, defined as data subject to left-truncation and right-truncation, arise in field failure analyses for mechanical units. 8,9,76 Parametric inference methods discussed in this paper work for doubly-truncated data [76][77][78][79][80][81] by an appropriate correction to the likelihood function. However, sample sizes under doubly-truncation can be small since samples are available only for those who experience failures within the data collection period.…”
Section: Discussionmentioning
confidence: 99%
“…Doubly-truncated data, defined as data subject to left-truncation and right-truncation, arise in field failure analyses for mechanical units. 8,9,76 Parametric inference methods discussed in this paper work for doubly-truncated data [76][77][78][79][80][81] by an appropriate correction to the likelihood function. However, sample sizes under doubly-truncation can be small since samples are available only for those who experience failures within the data collection period.…”
Section: Discussionmentioning
confidence: 99%
“…Indeed, the gamma distribution is the secondary choice to the Weibull, lognormal, and logistic distributions. In applications, the gamma distribution is applied with the lognormal and Weibull distributions [72,74,77] or without any other [78,79].…”
Section: Gamma Distributionmentioning
confidence: 99%
“…Hong et al [1] separated the samples into two parts: a truncated part (e.g., transformers installed before 1980) and an untruncated part (e.g., transformers installed after 1980), and then combined them into a single likelihood function. This type of truncated field data arises in many other practical applications, where there is a birth process (the installing process) of individuals and a certain data collection period of failure [6][7][8][9].…”
Section: Introductionmentioning
confidence: 99%