基于遗传算法的城市用水量灰色预测模型研究--以秦皇岛市引青济秦工程为例OACSTPCD
Research on model of gray prediction of urban water demand based on genetic algorithm:taking project of water diversion from Qinglong River to Qinhuangdao for example
通过数据分析,结合传统灰色GM(1,1)模型的特点,基于遗传算法与新陈代谢思想提出了改进的GM(1,1,λ)模型。结果表明:GM(1,1)模型对分散数据预测精度较低,其精度等级为四级以下,最大相对误差大于45%,预测值逐年上升,与实际情况不符。而改进的GM(1,1,λ)模型的精度等级为三级,最大相对误差为18.716%,更好地反映了城市用水量的变化趋势,与观测数据最为接近,预测精度较高。
Through data analysis and combined with the characteristics of traditional gray GM (1,1)mod-el, the paper presented improved GM (1,1,λ) model based on genetic algorithm and metabolism .The results indicated that prediction accuracy of GM (1,1) model is lower for scattered data , its accuracy lev-el is under the forth and the maximum relative error is 45%.The predictive value is increased year by year,which is inconsistent with the actual situation .The predi…查看全部>>
杜迎欣;曹小兵;李琛;王玉恒;马廉洁
秦皇岛市引青管理局,秦皇岛066305东北大学秦皇岛分校控制工程学院,秦皇岛066004东北大学秦皇岛分校控制工程学院,秦皇岛066004东北大学秦皇岛分校控制工程学院,秦皇岛066004东北大学秦皇岛分校控制工程学院,秦皇岛066004
建筑与水利
城市用水灰色系统遗传算法用水量预测引青济秦
urban water demandgray systemgenetic algorithmprediction of water demandwater di-version from Qinglong River to Qinhuangdao
《水资源与水工程学报》 2014 (3)
129-132,4
河北省高校科技项目( Z2013017)
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