A Study of MLE for the Modified Weibull Distribution
For complex systems, the lifetime usually exhibits bathtub- shaped failure rate. An appropriate model in many cases is the so-called modified Weibull distribution proposed by (Lai et al. 2003). Maximum likelihood estimation is usually applied to estimate the model parameters. However, if more than one local MLE of the model parameter exist, more complicated steps are needed to locate the global one. In this paper, the MLE of this distribution is studied and especially the uniqueness of the MLEs of the modified Weibull parameters is investigated.
modified Weibull distribution failure rate maximum likelihood Hessian matrix negative-definite concave function.
H. Jiang M.Xie L.C.Tang
Department of Industrial and Systems Engineering, National University of Singapore, Singapore
国际会议
The First International Conference on Maintenance Engineering(首届维修工程国际学术会议)
成都
英文
1031-1037
2006-10-15（万方平台首次上网日期，不代表论文的发表时间）