...电子商务和技术交流多元化信息平台 关键词:局部放电;截尾均值;偏度;相关系数;变异系数 [gap=851]Key words: PD;Trimmean;Skewness;Correlation coefficient;Variance coefficient ...
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根据截尾均值、平尾均值的定义和截尾正态分布,本文得到了这两种均值都是最或然估计量。
The maximum likelihood estimators(MLE) of means and standard deviations and the asymptotic distribution of likelihood ratio statistic are given.
首先对一类总体讨论了截尾均值的渐近最优性,然后给出了更一般情形总体参数最优截尾估计的一个表达式。
For a kind of population, the asymptotic best property of trimmed mean is discussed. Then, a expression of the best trimmed estimate of population parameters is given.
在均值已知的情况下,提出变点的截尾估计方法,以消除厚尾随机变量序列中较多“奇异”点对估计结果的影响;
We proposed a new method of truncating estimation when the means are known, which can weaken the influence of outliers.
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