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자연과학대학
통계학전공
Journal papers
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Burn-in and the performance quality measures in heterogeneous populations
Title
Burn-in and the performance quality measures in heterogeneous populations
Authors
Cha J.H.
;
Finkelstein M.
Ewha Authors
차지환
SCOPUS Author ID
차지환
Issue Date
2011
Journal Title
European Journal of Operational Research
ISSN
0377-2217
Citation
European Journal of Operational Research vol. 210, no. 2, pp. 273 - 280
Indexed
SCIE; SCOPUS
Document Type
Article
Abstract
Burn-in is a widely used engineering method of elimination of defective items before they are shipped to customers or put into field operation. Under the assumption that a population is described by the decreasing or bathtub-shaped failure rate functions, various optimal burn-in problems have been intensively studied in the literature. In this paper, we consider a new model and assume that a population is composed of stochastically ordered subpopulations described by their own performance quality measures. It turns out that this setting can justify burn-in even in situations when it is not justified in the framework of conventional approaches. For instance, it is shown that it can be reasonable to perform burn-in even when the failure rate function that describes the heterogeneous population of items increases and this is one of the main and important findings of our study. © 2010 Elsevier B.V. All rights reserved.
DOI
10.1016/j.ejor.2010.09.019
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