USING IMPROVED GREY FORECASTING MODEL TO ESTIMATE THE ELECTRICITY CONSUMPTION DEMAND IN VIETNAM

Abstract: On the basis of the grey prediction models, this study uses the previous data (from 1980 to 2014) from the website of the World Bank and applies two algorithm models to forecast the electricity consumption in Vietnam. The simulation results show that Fourier Residual Modified GM (1, 1) (abbreviated as FRMGM (1, 1)) is an effective model with an average accuracy of prediction at 99.13%. Therefore, the FRMGM (1, 1) model is strongly suggested for forecasting the electricity consumption demand in Vietnam.Keywords: electricity consumption demand, GM (1, 1); FRMGM (1, 1), Vietna

An Improvement the Accuracy of Grey Forecasting Model for Cargo Throughput in International Commercial Ports of Kaohsiung

Abstract:-Based on the grey theory, grey prediction models, which are GM (1, 1), have been adopted to predict the cargo throughput and modified GM (1, 1) using Fourier series called "FRMGM (1, 1)" for improving the accuracy of forecast model. A forecasting the cargo throughput in the international commercial port of Kaohsiung from 2013-2015 has also been conducted based on the previous data to serve as a reference for port manager in making development plans and construction as well as orienting development in the future. All data source is collected from the Ministry of Transportation and Communication of Taiwan. Through simulation results, this study showed that both of two models are suitable but the FRMGM (1, 1) is the excellent model in forecast with average accuracy of predict is 100%. Hence, the FRMGM (1, 1) model is strongly suggested for forecast the cargo throughput in the port of Kaohsiung