The quality statistic is a monotonous function of a method of moments estimator of the unreliability.
质量统计是不可靠度的矩估计的严格增加函数。
The conditional density and the conditional mean are estimated by nonparametric method. Then the estimator of the parameter is proposed by the generalized method of moments.
使用非参数估计方法给出条件密度和条件均值的估计，在此基础上给出参数的广义矩估计。
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