Grey Systems: Theory and Application: Volume 11 Issue 2

Impact analysis and classification of aircraft functional failures by using improved FHA based on gray correlation

Yuhang Zhang, Yan Huang, Tingting Xu, Chang Liu, Liangyan Tao

The classification of aircraft failures has been a significant part of functional hazard analysis (FHA). Aiming at the shortcomings of the traditional FHA method in the evaluation…

The housing demand analysis and prediction of the real estate based on the AWGM (1, N) model

Xin Xiong, Huan Guo, Xi Hu

The purpose of this paper is to seek to drive the modernization of the entire national economy and maintain in the long-term stability of the whole society; this paper proposes an…

A new approach to the degree of greyness

Rafał Mierzwiak, Marcin Nowak, Naiming Xie

The degree of greyness may be regarded as a measure of cognitive uncertainty. Therefore, it is a part of the epistemological core of the grey systems theory. The theoretical…

Prediction of grain supply and demand structural balance in China based on grey models

Weiming Yang, Bingjun Li

The purpose of this paper is to comprehensively and accurately analyze the supply and demand structural balance of grain in the context of China's agricultural supply-side reform…

Forecasting key indicators of China's inbound and outbound tourism: optimistic–pessimistic method

Saad Ahmed Javed, Muhammad Ikram, Liangyan Tao, Sifeng Liu

Tourism industry is a highly complex system surrounded by many uncertainties because of its innumerable connections with other supporting systems. Considering tourism, a grey…

China's overcapacity industry evaluation based on TOPSIS grey relational projection method with mixed attributes

Xiumei Hao, Mingwei Li, Yuting Chen

This paper takes the seven overcapacity industries such as the textile industry, electricity and heat, steel, coal, automobile manufacturing, nonferrous metals and petrochemical…

A novel discrete grey Riccati model and its application

Liang Zeng

To develop the theory and application of the grey prediction model, this investigation constructs a novel discrete grey Riccati model termed DGRM(1,1).

Grey theory–based BP-NN co-training for dense sequence long-term tendency prediction

Yuling Hong, Yingjie Yang, Qishan Zhang

The purpose of this paper is to solve the problems existing in topic popularity prediction in online social networks and advance a fine-grained and long-term prediction model for…