摘要
为解决当寿命分布的数学形式完全未知，而寿命试验数据又含有右删失数据的情况下，如何估计失效率函数的问题，推广运用密度核估计的处理手段，根据极大似然的估计思想，在推导出失效率函数估计的数学形式的基础上，构造特殊的样条插值，给出了失效率函数的连续型非参数估计。
In the field of reliability, it is difficult to estimate failure rate function based on a censored sample if the distribution of lifetime is complete free. By modifying Parzen kernel estimator, a method is proposed in this paper based on maximum likelihood principle. A failure rate estimator and a special spline function are presented. This method is available for continuous nonparametric estimation of failure rates.
出处
《西南交通大学学报》
EI
CSCD
北大核心
1998年第4期475-479,共5页
Journal of Southwest Jiaotong University
关键词
非参数估计
失效分析
可靠性
删失数据
nonparametric estimation
failure analysis
reliability
censored sample
failure rate
