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arXiv 0908.3413math.STstat.TH
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贝叶斯频率论混合推理

Bayesian frequentist hybrid inference

Ao Yuan

摘要:

贝叶斯和频率论方法在许多方面不同,但共享一些基本的最优性属性。在实践中,有些情况下,根据某些标准,其中一种方法更可取。我们考虑的情况下,一组多个参数,可以分为两个不相交的子集的推断。在一个集合上,频率论方法可能会受到青睐,而在另一个集合上,贝叶斯方法可能会受到青睐。这促使一个联合估计过程中,一些参数估计贝叶斯,其余的最大似然估计在同一参数模型,从而保持这两种方法的优点,避免他们的弱点。这样的混合过程使我们在实现整体推理优势方面具有更大的灵活性。我们研究了估计量的相合性和高阶渐近性,并举例说明了它的应用。同时,这些结果也为客观先验的构造提供了一种新的方法。

英文摘要:

Bayesian and frequentist methods differ in many aspects, but share some basic optimality properties. In practice, there are situations in which one of the methods is more preferred by some criteria. We consider the case of inference about a set of multiple parameters, which can be divided into two disjoint subsets. On one set, a frequentist method may be favored and on the other, the Bayesian. This motivates a joint estimation procedure in which some of the parameters are estimated Bayesian, and the rest by the maximum-likelihood estimator in the same parametric model, and thus keep the strengths of both the methods and avoid their weaknesses. Such a hybrid procedure gives us more flexibility in achieving overall inference advantages. We study the consistency and high-order asymptotic behavior of the proposed estimator, and illustrate its application. Also, the results imply a new method for constructing objective prior.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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