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Information Measures for Generalized Order Statistics and Their Concomitants under General Framework from Huang-Kotz
Mohamed A Abd Elgawad1,2, Haroon M Barakat3, Shengwu Xiong1
1School of Computer Science and Technology, Wuhan University of Technology, Wuhan 430070, China.
Abstract:
In this paper, we study the concomitants of dual generalized order statistics (and consequently generalized order statistics) when the parameters γ1,…,γn are assumed to be pairwise different from Huang-Kotz Farlie-Gumble-Morgenstern bivariate distribution. Some useful recurrence relations between single and product moments of concomitants are obtained. Moreover, Shannon's entropy and the Fisher information number measures are derived. Finally, these measures are extensively studied for some well-known distributions such as exponential, Pareto and power distributions. The main motivation of the study of the concomitants of generalized order statistics (as an important practical kind to order the bivariate data) under this general framework is to enable researchers in different fields of statistics to use some of the important models contained in these generalized order statistics only under this general framework. These extended models are frequently used in the reliability theory, such as the progressive type-II censored order statistics.
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