Grey Systems: Theory and Application: Volume 7 Issue 3

MGM(1,m) model based on interval grey number sequence and its applications

Pingping Xiong, Yue Zhang, Bo Zeng, Tian-Xiang Yao

Aiming at the traditional multivariate grey forecasting model only considers the modelling of real numbers; therefore, the purpose of this paper is to construct an MGM(1, m) model…

Study on distance measuring and sorting method of general grey number

Shi-quan Jiang, Si-feng Liu, Zhi-geng Fang, Zhong-xia Liu

The purpose of this paper is to study distance measuring and sorting method of general grey number.

Research on an exponential distribution reliability function model based on multi-source heterogeneous data supplements

Heng Shao, Zhigeng Fang, Qin Zhang, Qian Hu, Jiajia Cai, Liangyan Tao

As productions show characteristics of multi-varieties and small batch in a recent new product system, it is more difficult to acquire its failure rate data. With the help of…

Improved GM(1, 1) model based on concave sequences and its applications

Xinhai Kong, Peng Zhang, Xin Ma

The purpose of this paper is to improve the GM(1, 1) model based on concave sequences.

Application of grey systems in predicting the degree of cotton spider mite infestations

Shouhui Wang, Jianguo Dai, Qingzhan Zhao, Meina Cui

Many factors affect the emergence and development of crop diseases and insect pests. Traditional methods for investigating this subject are often difficult to employ and produce…

The multiple attribute decision model of grey targets based on grey potential degree

Aiqing Ruan, Yinao Wang

Grey target decision making is one of the important problems of decision-making theory. It is critical to express uncertain information effectively and depose them in a reasonable…

Study of a discrete grey forecasting model based on the quality cost characteristic curve

Wenjie Dong, Sifeng Liu, Zhigeng Fang, Xiaoyu Yang, Qian Hu, Liangyan Tao

The purpose of this paper is to clarify several commonly used quality cost models based on Juran’s characteristic curve. Through mathematical deduction, the lowest point of…

A grey-based decision-making approach to the supplier selection problem in a steelmaking company: A case study in Libya

Ali M. Abdulshahed, Ibrahim A. Badi, Mohamed Mehemed Blaow

The purpose of this paper is to propose a supplier selection method using grey system theory for a steelmaking company in Libya.

Research on factors influencing consumers’ loyalty towards geographical indication products based on grey incidence analysis

Huibin Zhan, Sifeng Liu, Jielong Yu

Loyalty of customers is an essential factor influencing the development of geographical indication products industry. The purpose of this paper is to construct a model to detect…

Taguchi-based combined grey relational and principal component analyses for multi-response optimization of diesel engines

Mohd Muqeem, Ahmad Faizan Sherwani, Mukhtar Ahmad, Zahid Akhtar Khan

Diesel engine can produce power more efficiently with lower exhaust emissions when operated at optimum input parameter settings. To achieve this goal, the purpose of this paper is…

Assessment of airport performance using the grey theory method: A case study in Libya

Mohamed Ibrahim Eshtaiwi, Ibrahim A. Badi, Ali M. Abdulshahed, Turan Erman Erkan

Performance evaluation of airports or any other organisation is paramount for improving performance. The purpose of this paper is to evaluate and compare the performance of the…

Energy-related CO2 emission forecast for Turkey and Europe and Eurasia: A discrete grey model approach

Berk Ayvaz, Ali Osman Kusakci, Gül T. Temur

The global warming, caused by the anthropogenic greenhouse gases, has been one of the major worldwide issues over the last decades. Among them, carbon dioxide (CO₂) is the most…