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arXiv 0903.3795math.STstat.TH
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GLR检验的有限样本量优性

Finite Sample Size Optimality of GLR Tests

George V. Moustakides

摘要:

在一些有趣的应用中,人们面临着同时进行二元假设检验和参数估计的问题。虽然这种联合问题并不罕见,但在文献中没有系统的分析,有效地对待他们。现有的方法分别考虑检测和估计子问题,在每种情况下应用相应的最优策略。事实证明,整个计划不一定是最佳的,因为用于两个部分的标准通常是不相容的。在这篇文章中,我们提出了一个数学设置,认为这两个问题共同。具体来说,我们提出了一个有意义的组合的奈曼-皮尔逊和贝叶斯准则,我们提供的联合问题的最优解。在由此产生的最佳方案中,这两个部分相互作用,产生完全新颖的检测/估计结构。值得注意的副产品,我们的工作是证明,众所周知的GLR测试是有限样本量的最佳组合意义下。

英文摘要:

In several interesting applications one is faced with the problem of simultaneous binary hypothesis testing and parameter estimation. Although such joint problems are not infrequent, there exist no systematic analysis in the literature that treats them effectively. Existing approaches consider the detection and the estimation subproblems separately, applying in each case the corresponding optimum strategy. As it turns out the overall scheme is not necessarily optimum since the criteria used for the two parts are usually incompatible. In this article we propose a mathematical setup that considers the two problems jointly. Specifically we propose a meaningful combination of the Neyman-Pearson and the Bayesian criterion and we provide the optimum solution for the joint problem. In the resulting optimum scheme the two parts interact with each other, producing detection/estimation structures that are completely novel. Notable side-product of our work is the proof that the well known GLR test is finite-sample-size optimum under this combined sense.

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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