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A New Method For Fast Computing Unbiased Estimators Of Cumulants

机译:快速计算累积量无偏估计的新方法

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摘要

We propose new algorithms for generating k-statistics, multivariate k-statistics, polykays and multi-variate polykays. The resulting computational times are very fast compared with procedures existing in the literature. Such speeding up is obtained by means of a symbolic method arising from the classical umbral calculus. The classical umbral calculus is a light syntax that involves only elementary rules to managing sequences of numbers or polynomials. The cornerstone of the procedures here introduced is the connection between cumulants of a random variable and a suitable compound Poisson random variable. Such a connection holds also for multivariate random variables.
机译:我们提出了用于生成k统计量,多元k统计量,多元和多元多元的新算法。与文献中存在的过程相比,所得的计算时间非常快。这种加速是通过经典本影演算产生的一种符号方法来实现的。经典的本影演算是一种简单的语法,仅包含基本规则来管理数字或多项式序列。此处介绍的过程的基础是随机变量的累积量与合适的复合Poisson随机变量之间的联系。这种连接也适用于多元随机变量。

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