Generalized Bernoulli process with long-range dependence and fractional binomial distribution

被引:6
|
作者
Lee, Jeonghwa [1 ]
机构
[1] Truman State Univ, Dept Stat, Kirksville, MO 63501 USA
来源
DEPENDENCE MODELING | 2021年 / 9卷 / 01期
关键词
Bernoulli process; Long-range dependence; Hurst exponent; over-dispersed binomial model;
D O I
10.1515/demo-2021-0100
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
Bernoulli process is a finite or infinite sequence of independent binary variables, X-i, i = 1, 2, ..., whose outcome is either 1 or 0 with probability P(X-i = 1) = p, P(X-i = 0) = 1 - p, for a fixed constant p is an element of (0, 1). We will relax the independence condition of Bernoulli variables, and develop a generalized Bernoulli process that is stationary and has auto-covariance function that obeys power law with exponent 2H - 2, H is an element of (0, 1). Generalized Bernoulli process encompasses various forms of binary sequence from an independent binary sequence to a binary sequence that has long-range dependence. Fractional binomial random variable is defined as the sum of n consecutive variables in a generalized Bernoulli process, of particular interest is when its variance is proportional to n(2H), if H is an element of (1/2, 1).
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页码:1 / 12
页数:12
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