摘要
为解决城市工业用水量预测过程中简易方法预测精度不好的问题,基于柯布-道格拉斯生产函数和多层递阶预测时变参数方法,以城市工业用水量、城市工业总产值及工业水价为依据,建立新的工业生产函数法对城市工业用水量进行预测.结果表明,该方法原理简单,且预测精度较高,平均相对误差低于6%.
In order to solve the problem that the predicting accuracy of simple method is not precise in the prediction process of urban industry water consumption, a new method of industrial production function for the urban water industry forecast is estallished based on Cobb-Douglas production function and the method of multi- layer hierarchical forecast time-varying parameters, in accordance with urban industry water consumption, urban industrial GDP and the price of industrial water. The result shows that the method is simple and precise, and the average relative error is less than 6%.
出处
《天津工业大学学报》
CAS
北大核心
2009年第5期79-81,共3页
Journal of Tiangong University
基金
天津市科技创新专项资金(06FZZDSH00900)
国家水体污染控制与治理科技重大专项(2008ZX07314-003)
关键词
工业生产函数
用水量预测
时变参数
industrial productions function
water consumption forecast
time-varying parameters