看板Statistics
标 题Re: 有关minimax的文章涵意?
发信站无名小站 (Sun Sep 10 13:47:22 2006)
转信站ptt!Group.NCTU!grouppost!Group.NCTU!wretch
※ 引述《winniewo》之铭言:
我换个方式问好了
> 『Bayes estimator provide a tool for solving minimax problems.
贝氏估计量提供了一个解决minimax问题的工具
> Thus Bayesian considerations are helpful
> when choosing an optimal frequentist estimator.
这句话看不大懂,什麽是"optimal frequentist estimator"
> Viewed in this light, there is a
> synthesis of the two approaches.
由此观点来看,就有一个两种方法的"synthesis"
什麽是 synthesis of the two approches.
> The Bayesian approach provides us with a mean of
> constructing an estimator that has
> optimal frequentist properties.
贝式方法提供了我们 "with a mean of comstrcting"
估计量拥有 "optimal frequentist" 性质.
> This synthesis highlights important features
> of both the Bayesian and frequentist
> approaches.
这个"sythesis"突显了贝式学与频率学重要的特性
> The Bayesian paradigm is
> well suited for the construction of
> possibly optimal estimators, but is
> less well suited for their evaluation.
这句的意思不太了解
(1)什麽是construction of possibly optimal estimator
(2)什麽是their evalustion
(3)为什麽贝式适合的是(1)而较不适合(2)
> The frequentist oaradigm is complementary,
> as it is well suited for risk evaluations,
> but less well suited for construction.
这个问题也跟上面一样...@@
> It is important to view these two
> approaches and hence "Average risk
> optimality" and "Minimaxity and admissibility"
> as complementary rather than adversarial;
> together they provide a rich set of tools
> and techniques for the statisticaian.
这是个对於在看这两个方法是重要的,
因此"平均风险最佳性"与"大中取小性和允许性"
为互补的,而不是相互比较的,这两个都同时提供了
统计学者一个好的工具与方法.
这是在统计教本中讲贝氏估计量与
大中取小估计量的一段文章,我不是学
这方面的东西,but考试要考啊~我也很想看懂
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