Determination of Two Change Points of a Bathtub Failure Rate Curve
Determination of Two Change Points of a Bathtub Failure Rate Curve
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DOI：
10.1007/978-3-642-38433-2_67
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
R. Jiang
中科院分区：
文献类型：
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作者：
R. Jiang
给出了基于故障率的浴盆曲线的主要特征，定义了浴盆曲线的两个变点，并给出了估计变点的非参数和参数方法。推导了婴儿死亡率和随机失效阶段的区间失效率的简单关系式。所提出的方法是有用的模型选择，可以用来评估任何浴缸曲线模型的适当性。这些都是通过一个真实世界的例子来说明的。
This paper gives main characteristics of the failure-rate-based bathtub curve, defines two change points of the bathtub curve and develops nonparametric and parametric methods to estimate the change points. Simple relations for estimating the interval failure rate in the infant mortality and random failure phases are derived. The proposed methods are useful for model selection and can be used to evaluate the appropriateness of any bathtub curve model. These are illustrated through a real-world example.