Type-II Censoring, and Weibull Distributed Lifetimes
| dc.contributor.author | Kateri, M. | en |
| dc.contributor.author | Balakrishnan, N. | en |
| dc.date.accessioned | 2015-11-24T17:24:44Z | |
| dc.date.available | 2015-11-24T17:24:44Z | |
| dc.identifier.issn | 0018-9529 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/12945 | |
| dc.rights | Default Licence | - |
| dc.subject | Bootstrap, cumulative exposure model, Fisher | en |
| dc.subject | information matrix, maximum likelihood estimation, type-II | en |
| dc.subject | censoring. | en |
| dc.title | Type-II Censoring, and Weibull Distributed Lifetimes | en |
| heal.abstract | The simple step-stress model under Type-II censoring based on Weibull lifetimes, which provides a more flexible model than the exponential model, is considered in this paper. For this model, the maximum likelihood estimates (MLE) of its parameters, as well as the corresponding observed Fisher Information Matrix, are derived. The likelihood equations do not lead to closedform expressions for the MLE, and they need to be solved by using an iterative procedure, such as the Newton-Raphson method. We also present a simplified estimator, which is easier to compute, and hence is suitable to use as an initial estimate in the iterative process for the determination of the MLE. We then evaluate the bias, and mean square error of these estimates; and provide asymptotic, and bootstrap confidence intervals for the parameters of the Weibull simple step-stress model. Finally, the results are illustrated with some examples. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | 10.1109/TR.2008.2006292 | - |
| heal.journalName | IEEE TRANSACTIONS ON RELIABILITY, | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2008 | - |
| heal.publisher | IEEExplore | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μαθηματικών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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