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Some properties of generalized greyness of interval grey number

Li Li (School of Economics and Management, Shandong Agricultural University, Taian, China)
Xican Li (School of Information Science and Engineering, Shandong Agricultural University, Taian, China)

Grey Systems: Theory and Application

ISSN: 2043-9377

Article publication date: 15 May 2023

Issue publication date: 6 July 2023

161

Abstract

Purpose

In order to make full use of the generalized greyness of interval grey number, this paper analyzes the properties and its applications of generalized greyness.

Design/methodology/approach

Firstly, the static properties of generalized greyness in bounded background domain, infinite background domain and infinitesimal background domain are analyzed. Then, this paper gives the dynamic properties of generalized greyness in bounded background domain, infinite background domain and infinitesimal background domain and explains the dialectical principle contained in it. Finally, the generalized greyness is used to judge the effectiveness of interval grey number transformation.

Findings

The results show that the generalized greyness of interval grey number has relativity, normativity, unity, eternity and conservation. The static and dynamic properties of generalized greyness are the same in the infinite and infinitesimal background domain, while they are different in the bounded background domain. The generalized greyness can be used as an index to judge whether the grey number transformation is greyness or information preservation.

Practical implications

The research shows that the generalized greyness can be used as an index to judge the validity of the grey number transformation and also can be applied in grey evaluation, grey decision-making and grey prediction and so on.

Originality/value

The paper succeeds in realizing the mathematical principle of “white is black”, the “greyness clock-slow effect” of the value domain of interval grey number and the generalized greyness conservation principle, which provides a theoretical basis for the rational use of generalized greyness of interval grey number.

Keywords

Acknowledgements

Funding: The work is supported in part by Natural Science Foundation of Shandong Province Grant No. ZR2022QG037.

Citation

Li, L. and Li, X. (2023), "Some properties of generalized greyness of interval grey number", Grey Systems: Theory and Application, Vol. 13 No. 3, pp. 576-593. https://doi.org/10.1108/GS-01-2023-0001

Publisher

:

Emerald Publishing Limited

Copyright © 2023, Emerald Publishing Limited

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