Nonparametric maximum likelihood estimation of survival functions with a general stochastic ordering and its dual
一般随机序约束下生存函数的非参数最大似然估计及其对偶AI 解读 ↓
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一般随机序约束下生存函数的非参数最大似然估计及其对偶AI 解读 ↓
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This paper discusses estimation of survival functions under an arbitrary partial stochastic ordering of the underlying populations. This technique is especially useful when data are not easily acquired from one or more of the populations, but data from the other populations are available. Estimation of the ordered survival functions entails use of a Fenchel duality theorem that results in an algorithm to identify and resolve violations of the underlying ordering. The algorithm produces estimates which converge to the maximum likelihood estimates of the survivalfunctions given the underlying ordering. The method is illustrated by an example.