In this paper, the covariance matrix of random effect in linear mixed model is extended to positive matrix. We construct the estimation of variance components based on the idea of ANOVA estimation.
将线性混合模型中随机效应的协方差阵推广为正定阵，运用方差分析估计的方法给出了方差分量的估计。
Note that severity of risk is directly related to the variance in the estimation of a project's parameters.
注意到风险的严重程度直接关系到项目参数的估计中的方差。
This paper will focus on the impact of estimation variance on the measurement and control component of governance.
本文将关注估算对管理的度量及控制部件的偏差的影响。
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