Useful periods for lifetime distributions with bathtub shaped hazard rate functions

被引：71

作者：

Bebbington, M ^{[1
]}

Lai, CD

Zitikis, R

机构：

[1] Massey Univ, Inst Informat Sci & Technol, Palmerston North, New Zealand

[2] Univ Western Ontario, Dept Stat & Actuarial Sci, London, ON N6A 5B7, Canada

来源：

IEEE TRANSACTIONS ON RELIABILITY | 2006年 / 55卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

additive Weibull distribution; curvature; pseudo-turning points;

D O I：

10.1109/TR.2001.874943

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 [计算机科学与技术];

摘要：

We propose computationally tractable formal mathematical definitions for the 'useful period' of lifetime distributions with bathtub shaped hazard rate functions. Detailed analysis of the reduced additive Weibull hazard rate function illustrates its utility for identifying such useful periods. Examples of several other bathtub shaped hazard rate functions are also presented with applications to lifetime data. The suggestion is made of defining and considering analogous 'stable periods' in the case of the corresponding upside-down bathtub shaped mean residual life functions.

引用

页码：245 / 251

页数：7

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