Grey Systems: Theory and Application: Volume 14 Issue 2

An optimal wavelet transform grey multivariate convolution model to forecast electricity demand: a novel approach

Flavian Emmanuel Sapnken, Mohammed Hamaidi, Mohammad M. Hamed, Abdelhamid Issa Hassane, Jean Gaston Tamba

For some years now, Cameroon has seen a significant increase in its electricity demand, and this need is bound to grow within the next few years owing to the current economic…

The evaluation of grey relative incidence

Marcin Nowak, Marta Pawłowska-Nowak, Małgorzata Kokocińska, Piotr Kułyk

With the use of the grey incidence analysis (GIA), indicators such as the absolute degree of grey incidence (ε_ij), relative degree of grey incidence (r_ij) or synthetic degree of…

Quality analysis of range hood impeller automated assembly based on generalized grey relational degree

M.A. Xianglin, Haochen Cai, Qiming Yang, Gang Wang, Kun Mao

This paper establishes a quality model for automation assembly of range hood impeller based on generalized grey relational degree, it improves the debugging efficiency of the…

A new grey relational analysis model of cross-sequences

Sifeng Liu, Ningning Lu, Zhongju Shang, R.M. Kapila Tharanga Rathnayaka

The purpose of this paper is to explore a new approach to solve the problem of positive and negative offset in the calculation process of integral elements, then propose a series…

An integrated G-MACONT approach for healthcare supplier selection

Santonab Chakraborty, Rakesh D. Raut, T.M. Rofin, Shankar Chakraborty

Supplier selection along with continuous evaluation of their performance is a crucial activity in healthcare supply chain management for effective utilization of scarce resources…

Grey angle cosine relational degree model based on generalized greyness of interval grey number

Li Zhang, Xican Li

Aim to the limitations of grey relational analysis of interval grey number, based on the generalized greyness of interval grey number, this paper tries to construct a grey angle…

A new adaptive grey seasonal model for time series forecasting tasks

Ran Wang, Yunbao Xu, Qinwen Yang

This paper intends to construct a new adaptive grey seasonal model (AGSM) to promote the application of the grey forecasting model in quarterly GDP.

Assembly line balancing and capacity evaluation based on interval grey processing time

Zihan Dang, Naiming Xie

Assembly line is a common production form and has been effectively used in many industries, but the imprecise processing time of each process makes production line balancing and…

Damping accumulated discrete MGM(1, m) power model and its application to forecasting agricultural output value share and employment share

Liangshuai Li, Dang Luo

The damping accumulated discrete MGM(1, m) power model is proposed for the problem of forecasting the share of agricultural output value and the share of employment in China.

Seasonal electricity consumption forecasting: an approach with novel weakening buffer operator and fractional order accumulation grey model

Chuanmin Mi, Xiaoyi Gou, Yating Ren, Bo Zeng, Jamshed Khalid, Yuhuan Ma

Accurate prediction of seasonal power consumption trends with impact disturbances provides a scientific basis for the flexible balance of the long timescale power system…