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Negative ageing properties for counting processes arising in virtual age models

机译:负老化属性,用于计算虚拟年龄模型中出现的过程

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摘要

This paper is focused on counting processes of interest in reliability theory. In particular, we study virtual age models. Our aim is to consider these counting models stopped at a random time T, independent of the process. We investigate the negative ageing properties for the stopped process (decreasing failure rate and log-convexity), provided that T has the analogous properties. For instance, we show that these properties hold for the so-called Kijima type Ⅰ virtual age models, of interest in reliability, under quite general assumptions.
机译:本文着重于对可靠性理论中感兴趣的过程进行计数。特别是,我们研究虚拟年龄模型。我们的目标是考虑独立于过程而在随机时间T停止的这些计数模型。我们研究停止过程的负老化特性(降低故障率和对数凸性),前提是T具有类似的特性。例如,我们表明,在相当笼统的假设下,这些性质对于所谓的KijimaⅠ型虚拟年龄模型成立,并且对可靠性感兴趣。

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