Grey Systems: Theory and Application: Volume 5 Issue 2

Four basic models of GM(1, 1) and their suitable sequences

Sifeng Liu, Bo Zeng, Jiefang Liu, Naiming Xie, Yingjie Yang

– The purpose of this paper is to provide a foundational reference and practical guidance for modelling small and poor data with incomplete information.

Grey modeling based on the transformation of Aarc cot x+B function

Jun Zhang, Mengfei Ran, Guodong Han, Guiping Yao

The purpose of this paper is to utilize the proposed function transformation to make the original data series meet the properties of smooth ratio being lessen and stepwise ratio…

A Fourier residual modified Nash nonlinear grey Bernoulli model for forecasting the international trade of Chinese high-tech products

Zhengxin Wang, Lingling Pei

Although the Nash nonlinear grey Bernoulli model (NNGBM(1, 1)) is incomparable with respect to its flexibility over traditional grey models, errors are still inevitable in…

Grey system based novel approach for stock market forecasting

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

Making decisions in finance have been regarded as one of the biggest challenges in the modern economy today; especially, analysing and forecasting unstable data patterns with…

The hybrid intelligent systems design using grey systems theory

Scarlat Emil, Virginia Mărăcine

The purpose of this paper is to discuss how tacit and explicit knowledge determine grey knowledge and how these are stimulated through interactions within networks, forming the…

An analysis of intermediate inputs influencing the gross products of agriculture and its composition based on grey incidence analysis: Taking Huangshan City as example

Huibin Zhan, Sifeng Liu

Taking Huangshan City as an example, the purpose of this paper is to explore the relationship between gross products of agriculture (GPA), its main composition as well as their…

Multi-stage and multi-attribute risk group decision-making method based on grey information

Dang Luo, Yuwen Li

For the multi-stage and multi-attribute risk group decision-making problem, the attribute weight, decision-maker weight and time weight are unknown. The attribute value is grey…

Grey incidence between KPIs and hospital performance

Ioana Bradea, Virginia Mărăcine

Performance indicates how well the activities, operations and business processes of an enterprise are performed. In health care, performance illustrates the quality of medical…

Grey systems theory in economics – bibliometric analysis and applications’ overview

Delcea Camelia

The purpose of this paper is to synthesize the review of the existing literature attached to the grey economic system theory and applications and aims to offer a comprehensive…

Grey systems theory in economics – a historical applications review

Delcea Camelia

As the grey systems theory has been used over the time in different economic areas, in the following, a short literature review will be put forward, starting from the usage of…

Guest editorial

Delcea Camelia