Grey Systems: Theory and Application: Volume 12 Issue 4

Editorial: Memorabilia of the establishment and development of grey system theory (1982–2021)

Sifeng Liu

A summary of grey forecasting models

Naiming Xie

The purpose of this paper is to summarize progress of grey forecasting modelling, explain mechanism of grey forecasting modelling and classify exist grey forecasting models.

Grey system theory in engineering: a bibliometrics and visualization analysis

Liangyan Tao, Ailin Liang, Naiming Xie, Sifeng Liu

The year 2022 marks the 40th anniversary of the establishment of the grey system theory (GST), which has been widely applied in the engineering field. This paper aims to…

Application progress of grey model technology in agricultural science

Bingjun Li, Shuhua Zhang, Wenyan Li, Yifan Zhang

Grey modeling technique is an important element of grey system theory, and academic articles applied to agricultural science research have been published since 1985, proving the…

Grey system theory in sustainable development research—a literature review (2011−2021)

Mingli Hu, Wenjie Liu

As the grey systems theory has been widely used in the field of sustainable development (SD) research, in the following, a short literature overview will be put forward, starting…

Advance in grey system theory and applications in science and engineering

Sifeng Liu, Yong Tao, Naiming Xie, Liangyan Tao, Mingli Hu

The purpose of this paper is to summarize the advances in grey system theory research and various application achievements in science and engineering. At the same time, it…

Hybrid grey exponential smoothing approach for predicting transmission dynamics of the COVID-19 outbreak in Sri Lanka

D.M.K.N. Seneviratna, R.M. Kapila Tharanga Rathnayaka

The Coronavirus (COVID-19) is one of the major pandemic diseases caused by a newly discovered virus that has been directly affecting the human respiratory system. Because of the…

Evaluation of regional agricultural drought vulnerability based on unbiased generalized grey relational closeness degree

Dongxing Zhang, Dang Luo

The purpose of this study is to propose an unbiased generalized grey relational closeness evaluation model to improve the accuracy of regional agricultural drought vulnerability…

Multilayer grey situation group decision-making model based on cooperative game

Na Zhang, Shuli Yan

In the process of group decision-making, there may be multilayer subjects. In other words, members of the decision-making group may come from different layers and there is…

Robust stability analysis of switched grey neural network models with distributed delays over C

Lei Zhang, Huanbin Xue, Zeying Li, Yong Wei

The purpose of this paper is to study the dynamic behavior of complex-valued switched grey neural network models (SGNMs) with distributed delays when the system parameters and…