Improved GM (1, 1) model based on Simpson formula and its applications

X Ma, W Wu, Y Zhang - arXiv preprint arXiv:1908.03493, 2019 - arxiv.org
The classical GM (1, 1) model is an efficient tool to {make accurate forecasts} with limited
samples. But the accuracy of the GM (1, 1) model still needs to be improved. This paper …

[PDF][PDF] The GMC (1, n) model with optimized parameters and its application

X Ma, Z Liu - Journal of grey system, 2017 - researchgate.net
Abstract The GM (1, n) model with convolution integral (GMC (1, n)) is a novel grey
multivariate prediction model, which appeals considerable interest in recent researches due …

On unified framework for nonlinear grey system models: An integro-differential equation perspective

L Yang, N Xie, B Wei, X Wang - Communications in Nonlinear Science and …, 2022 - Elsevier
Nonlinear grey system models, serving to time series forecasting, are extensively used in
diverse areas of science and engineering. However, most research concerns improving …

Predicting foreign tourists for the tourism industry using soft computing-based Grey–Markov models

YC Hu - Sustainability, 2017 - mdpi.com
Accurate prediction of foreign tourist numbers is crucial for each country to devise
sustainable tourism development policies. Tourism time series data often have significant …

An integrated forecasting model for the coffee bean supply chain

CN Wang, MC Yu, NNY Ho, TN Le - Applied Economics, 2021 - Taylor & Francis
Coffee is the most traded commodity after petroleum. The Vietnamese coffee bean industry
has raised concerns lately over an inefficient coffee value chain; bets on coffee price …

Nonlinear grey Bernoulli model based on Fourier transformation and its application in forecasting the electricity consumption in Vietnam

NT Nguyen, VT Phan, Z Malara - Journal of Intelligent & Fuzzy …, 2019 - content.iospress.com
In recent decades, the Nonlinear Grey Bernoulli Model “NGBM (1, 1)” has been applied in
various fields and achieved positive results. However, its prediction results may be …

Prediction of Final Displacement of Tunnels in Time‐Dependent Rock Mass Based on the Nonequidistant Grey Verhulst Model

UC Han, CS Choe, KU Hong… - Mathematical Problems in …, 2022 - Wiley Online Library
Time‐dependent deformations of rock are important factors for the design and construction
of tunnels in the rock masses with time‐dependent strength and deformation properties …

Analyzing China's OFDI using a novel multivariate grey prediction model with Fourier series

H Jiang, YC Hu, JY Lin, P Jiang - International Journal of Intelligent …, 2019 - emerald.com
Purpose With the development of economy, China's OFDI constantly increase in recent year.
Meanwhile, OFDI has spillover effect on economic development and technological …

Combining deep neural network and fourier series for tourist arrivals forecasting

A Shabri, R Samsudin, Y Yusoff - IOP Conference Series …, 2020 - iopscience.iop.org
Accurate tourist arrivals forecasting is essential for governments and the private sector to
formulate policies and allocate funds more effectively. In this paper, the modeling of tourist …

Developing grey prediction with Fourier series using genetic algorithms for tourism demand forecasting

YC Hu - Quality & Quantity, 2021 - Springer
Predicting the number of foreign tourists is significant for governments in devising
development policies for tourism demand. Time series related to tourism often feature …