摘要
首先在区间数据下用极大似然法求Lindley分布中未知参数的估计,然而并不能得到参数的显示表达式;其次提出用EM算法可以很方便地求出参数估计且该估计具有良好的收敛性;最后通过随机模拟来说明用EM算法求Lindley分布中未知参数的估计是切实可行的.
Firstly,the maximum likelihood method is used to estimate the unknown parameter in Lindley distribution under Interval data,however,the explicit expression of the parameter can not be obtained.Secondly,it is proposed that EM algorithm can be used to find out estimation of the parameter,and this method has good convergence.Finally,the simulation results show that it is feasible to use EM algorithm to estimate the unknown parameter in Lindley distribution.
作者
龙兵
Long Bing(School of Mathematics and Physics,Jingchu University of Technology,Jingmen 448000,China)
出处
《南京师大学报（自然科学版）》
CAS
CSCD
北大核心
2018年第4期29-32,共4页
Journal of Nanjing Normal University(Natural Science Edition)
基金
National Natural Science Foundation of China(61374080)
