High dimensional nuisance parameters: an example from parametric survival analysis
High dimensional nuisance parameters: an example from parametric survival analysis
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高维干扰参数:参数生存分析的示例
DOI:
10.1007/s41884-020-00030-6
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Battey H
中科院分区:
文献类型:
--
作者:
Battey H
Parametric statistical problems involving both large amounts of data and models with many parameters raise issues that are explicitly or implicitly differential geometric. When the number of nuisance parameters is comparable to the sample size, alternative approaches to inference on interest parameters treat the nuisance parameters either as random variables or as arbitrary constants. The two approaches are compared in the context of parametric survival analysis, with emphasis on the effects of misspecification of the random effects distribution. Notably, we derive a detailed expression for the precision of the maximum likelihood estimator of an interest parameter when the assumed random effects model is erroneous, recovering simply derived results based on the Fisher information in the correctly specified situation but otherwise illustrating complex dependence on other aspects. Methods of assessing model adequacy are given. The results are both directly applicable and illustrate general principles of inference when there is a high-dimensional nuisance parameter. Open problems with an information geometrical bearing are outlined.
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DOI:
--
发表时间:
1984
期刊:
影响因子:
--
作者:
M. Kumon;S. Amari
通讯作者:
S. Amari
影响因子:
4.5
作者:
B. Lindsay
通讯作者:
B. Lindsay
DOI:
--
发表时间:
1983
期刊:
Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences
影响因子:
--
作者:
M. Kumon;S. Amari
通讯作者:
S. Amari
影响因子:
2
作者:
Yates, F
通讯作者:
Yates, F
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
C. Kartsonaki;D. Cox
通讯作者:
D. Cox