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61.
《Journal of Statistical Computation and Simulation》2012,82(3-4):303-309
An easily implemented and computationally efficient procedure is presented for the generation of autocorrelated pseudo-random numbers with specific probability distributions. A plot illustrates the relationship among the autocorrelations of the uniform, Rayleigh, and exponential distributions corresponding to a given autocorrelation in the normal generating distribution. 相似文献
62.
Shur Walter 《统计学通讯:理论与方法》2013,42(7):377-885
The Polya-Eggenberger distribution Involves drawing a ball from an urn containing black and white balls and, after each drawing, returning the ball together with s balls of the same color, The model represents positive contagion since the added balls are the same color as the one drawn, See Johnson and Kotz, (1977), This paper derives and examines the probability distribution which results from the Polya-Eggenberger model with only one change namely, the s additional balls added after each drawing are of the opposite color, producing a negative contagion model. Formulas in closed form are presented for the probability distribution function, the mean and variance, all binomial moments and, where s is greater than or equal to the number of balls in the urn at start, the mode, A formula for the mode is conjectured where s is less than the number of balls in the urn at start. Finally, the probability of obtaining k black balls in n drawings is shown in certain instances to be equal to Ank/n! where Ank are the Eulerian numbers. 相似文献
63.
We obtain a new technique to calculate the value of the minimum variance unbiased estimator (MVUE) of the probability function (p.f.) of the R distribution. This technique is based on an investigation of the ratios of r numbers. A recurrence relation for the MVUE of the p.f. of the R distribution is derived. It is interesting that the derived relation does not depend on the r numbers but depends on the ratios of the r numbers. The new method is efficient, convenient and accurate. 相似文献
64.
In this paper. introduced is a family of discrete probability distributions. whose probability function includes explieitly the Striling-Carlitz polynomial of the first or the second kind. The new family extends the stirling family of distributions. Sibuya (1988) includes the conditional distributions of the orginal ones and enlarges the application area. 相似文献
65.
张学智 《复旦学报(社会科学版)》2012,(4):18-25,36
乾坤并建是王夫之解易的重要体例,也是他的哲学思想在易学上的鲜明体现。在《周易外传》中,对乾坤并建的诠释集中在以下三个方面:其一,对以邵雍为代表的象数学进行批判,以突出天地的本体地位和对万物的统领作用;其二,对乾坤所代表的知与能、易与简、纯与杂进行阐发,彰显乾与坤在万物的存在与运动中的不同作用:乾给万物以存在及其性质,坤给万物以存在之展开与性质发生功效的能量。乾为健,坤为顺;乾始物,坤成物;万物为杂,乾坤为纯,万物在健与顺的共同作用下产生与运行。其三,太极有易以有于易,代表天地总体的太极就体现在万物之中,太极与万物是体与用的关系,以此拒斥道家的宇宙生成论。 相似文献
66.
We prove weak and strong laws of large numbers for coherent lower previsions, where the lower prevision of a random variable is given a behavioural interpretation as a subject's supremum acceptable price for buying it. Our laws are a consequence of the rationality criterion of coherence, and they can be proven under assumptions that are surprisingly weak when compared to the standard formulation of the laws in more classical approaches to probability theory. 相似文献
67.
免赔额和NCD赔付条件下保险索赔次数的分布 总被引:5,自引:4,他引:5
本文分析了免赔额及NCD赔付条件对索赔次数分布的影响,通过比较风险事件与索赔事件的差异引出了一类同质集合保单索赔次数的分布(PG分布);给出了PG分布的性质及参数估计方法。通过两个保险实例展示了数据拟合效果。 相似文献
68.
Ronald Pyke 《Revue canadienne de statistique》1984,12(4):241-264
Two processes of importance in statistics and probability are the empirical and partial-sum processes. Based on d-dimensional data X1, … Xa the empirical measure is defined for any A ⊂ Rd by the sample proportion of observations in A. When normalized, Fn yields the empirical process Wn: = n1/2 (Fn - F), where F denotes the “true” probability measure. To define partial-sum processes, one needs data that are assigned to specified locations (in contrast to the above, where specified unit masses are assigned to random locations). A suitable context for many applications is that of data attached to points of a lattice, say {Xj:j ϵ Jd} where J = {1, 2,…}, for which the partial sums are defined for any A ⊂ Rd by Thus S(A) is the sum of the data contained in A. When normalized, S yields the partial-sum process. This paper provides an overview of asymptotic results for empirical and partial-sum processes, including strong laws and central limit theorems, together with some indications of their inferential implications. 相似文献
69.
基于沟通过程模式的项目利益相关者沟通效能评价研究 总被引:1,自引:0,他引:1
项目利益相关者沟通效能是决定项目成败的关键因素。为了科学评价项目利益相关者沟通效能,文章在梳理沟通过程经典模式的基础上,结合项目沟通的特征,构建项目沟通过程模式,并据此设计项目利益相关者沟通效能评价指标体系,从利益相关者识别、沟通规划、信息传递、沟通成果4个维度测评项目沟通的过程性效能和结果性效能。最后,采用三角模糊数层次分析法确定各个评价指标的权重,采用物元分析法对待评项目沟通效能进行等级评价,并通过算例验证了评价模型的有效性。 相似文献
70.