A novel hyperbolic time-delayed grey model with Grasshopper Optimization Algorithm and its applications

Ain Shams Engineering Journal

Yizhu Fang¹  Gaoxun Zhang²  Wenqing Wu³  Xin Ma⁴  Xiwang Xiang⁴ 

[1] Corresponding author.;Gasfield Company, Chengdu 610051, China;;Exploration and Development Research Institute, Petrochina Southwest Oil &School of Science, Southwest University of Science and Technology, Mianyang 621010, China;

关键词: Discharge of sewage;    Ecological civilization construction;    Hyperbolic time-delayed grey model;    Grasshopper optimization algorithm;    Prediction precision;   

DOI  :  

来源: DOAJ

【 摘 要 】

Discharge for wastewater treatment plays a key role in improving the water quality, thereby guaranteeing living quality of citizens. With high-speed economics growth and economics reforming, total amount of China's discharge of wastewater treatment is sharing high uncertainty, leading to many difficulties in accurate forecasts of discharge of wastewater treatment. Based on grey system theory, the hyperbolic time-delayed term is introduced in this paper to develop a novel forecasting model in order to deal with uncertainties of China's sewage discharge forecasting. The key nonlinear parameter of the proposed model is determined by the Grasshopper Optimization Algorithm. A series of practical numerical cases prove that the proposed model is reliable in comparison with six existing models are used for comparison. Then we apply it to predict the behavior of sewage discharge in China, those results against demonstrating the model our proposed has more satisfactory prediction precision.

【 授权许可】

Unknown