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arXiv 0802.0817math.STstat.TH
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分解方案下混合密度估计的渐近正态性

Asymptotic normality of the mixture density estimator in a disaggregation scheme

Dmitrij Celov, Remigijus Leipus, Anne Philippe

摘要:

研究了随机参数AR(1)过程的集结/解聚问题中混合密度估计的渐近分布。证明了在混合密度(半参数)形式的较弱条件下,估计量是渐近正态的。证明是基于Bhansali等人2007年开发的线性随机变量中二次型的极限理论。研究了聚集过程的移动平均表示。一个小的模拟研究说明了结果。

英文摘要:

The paper concerns the asymptotic distribution of the mixture density estimator, proposed by Oppenheim et al 2006, in the aggregation/disaggregation problem of random parameter AR(1) process. We prove that, under mild conditions on the (semiparametric) form of the mixture density, the estimator is asymptotically normal. The proof is based on the limit theory for the quadratic form in linear random variables developed by Bhansali et al 2007. The moving average representation of the aggregated process is investigated. A small simulation study illustrates the result.

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