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相关数据中信息性相关结构选择的模型诊断检验AI 解读

In the generalized method of moments approach to longitudinal data analysis, unbiased estimating functions can be constructed to incorporate both the marginal mean and the correlation structure of the data. Increasing the number of parameters in the correlation structure corresponds to increasing the number of estimating functions. Thus, building a correlation model is equivalent to selecting estimating functions. This paper proposes a chi-squared test to choose informative…

混合设定下条件得分的效率AI 解读

The conditional score function is found to be generally fully informative concerning a parameter of interest when the conditioning statistic $S$ is sufficient for the nuisance parameter and has an exponential family distribution. Information is here measured by assuming the nuisance parameter to have been generated by an unknown mixing distribution and then computing the minimal Fisher information. The solution depends upon a study of the geometry of centered likelihood…