Several Basic Elements of Entropic Statistics

Inspired by the development in modern data science, a shift is increasingly visible in the foundation of statistical inference, away from a real space, where random variables reside, toward a nonmetrized and nonordinal alphabet, where more general random elements reside. While statistical inferences...

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Main Author: Zhiyi Zhang
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/25/7/1060
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author Zhiyi Zhang
author_facet Zhiyi Zhang
author_sort Zhiyi Zhang
collection DOAJ
description Inspired by the development in modern data science, a shift is increasingly visible in the foundation of statistical inference, away from a real space, where random variables reside, toward a nonmetrized and nonordinal alphabet, where more general random elements reside. While statistical inferences based on random variables are theoretically well supported in the rich literature of probability and statistics, inferences on alphabets, mostly by way of various entropies and their estimation, are less systematically supported in theory. Without the familiar notions of neighborhood, real or complex moments, tails, et cetera, associated with random variables, probability and statistics based on random elements on alphabets need more attention to foster a sound framework for rigorous development of entropy-based statistical exercises. In this article, several basic elements of entropic statistics are introduced and discussed, including notions of general entropies, entropic sample spaces, entropic distributions, entropic statistics, entropic multinomial distributions, entropic moments, and entropic basis, among other entropic objects. In particular, an entropic-moment-generating function is defined and it is shown to uniquely characterize the underlying distribution in entropic perspective, and, hence, all entropies. An entropic version of the Glivenko–Cantelli convergence theorem is also established.
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spelling doaj.art-58b6540b0ffb4007a1c88fa74a0af52f2023-11-18T19:14:10ZengMDPI AGEntropy1099-43002023-07-01257106010.3390/e25071060Several Basic Elements of Entropic StatisticsZhiyi Zhang0Department of Mathematics and Statistics, UNC Charlotte, Charlotte, NC 28223, USAInspired by the development in modern data science, a shift is increasingly visible in the foundation of statistical inference, away from a real space, where random variables reside, toward a nonmetrized and nonordinal alphabet, where more general random elements reside. While statistical inferences based on random variables are theoretically well supported in the rich literature of probability and statistics, inferences on alphabets, mostly by way of various entropies and their estimation, are less systematically supported in theory. Without the familiar notions of neighborhood, real or complex moments, tails, et cetera, associated with random variables, probability and statistics based on random elements on alphabets need more attention to foster a sound framework for rigorous development of entropy-based statistical exercises. In this article, several basic elements of entropic statistics are introduced and discussed, including notions of general entropies, entropic sample spaces, entropic distributions, entropic statistics, entropic multinomial distributions, entropic moments, and entropic basis, among other entropic objects. In particular, an entropic-moment-generating function is defined and it is shown to uniquely characterize the underlying distribution in entropic perspective, and, hence, all entropies. An entropic version of the Glivenko–Cantelli convergence theorem is also established.https://www.mdpi.com/1099-4300/25/7/1060entropiesentropy estimationentropic-moment-generating functionentropic statistics
spellingShingle Zhiyi Zhang
Several Basic Elements of Entropic Statistics
Entropy
entropies
entropy estimation
entropic-moment-generating function
entropic statistics
title Several Basic Elements of Entropic Statistics
title_full Several Basic Elements of Entropic Statistics
title_fullStr Several Basic Elements of Entropic Statistics
title_full_unstemmed Several Basic Elements of Entropic Statistics
title_short Several Basic Elements of Entropic Statistics
title_sort several basic elements of entropic statistics
topic entropies
entropy estimation
entropic-moment-generating function
entropic statistics
url https://www.mdpi.com/1099-4300/25/7/1060
work_keys_str_mv AT zhiyizhang severalbasicelementsofentropicstatistics