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arXiv math/0411297math.STstat.TH
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用故障率表示平均剩余寿命的探讨

On Representing the Mean Residual Life in Terms of the Failure Rate

Ramesh C. Gupta, David M. Bradley

摘要:

在生存或可靠性研究中,平均剩余寿命或预期寿命是模型的一个重要特征。虽然故障率可以用平均剩余寿命及其导数来表示,但逆问题--即用故障率来表示平均剩余寿命--通常涉及复杂表达式的积分。在本文中,我们得到了简单的表达式的平均剩余寿命的故障率为某些类的分布,其中subsidered许多标准的情况。文献中的几个结果可以得到使用我们的方法。此外,我们开发了一个扩展的平均剩余寿命的高斯概率函数的一类最终增加故障率分布。文中还提供了一些例子来说明这一过程。

英文摘要:

In survival or reliability studies, the mean residual life or life expectancy is an important characteristic of the model. Whereas the failure rate can be expressed quite simply in terms of the mean residual life and its derivative, the inverse problem--namely that of expressing the mean residual life in terms of the failure rate--typically involves an integral of a complicated expression. In this paper, we obtain simple expressions for the mean residual life in terms of the failure rate for certain classes of distributions which subsume many of the standard cases. Several results in the literature can be obtained using our approach. Additionally, we develop an expansion for the mean residual life in terms of Gaussian probability functions for a broad class of ultimately increasing failure rate distributions. Some examples are provided to illustrate the procedure.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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