水资源与水工程学报2017，Vol.28Issue(3)：87-90,4.DOI:10.11705/j.issn.1672-643X.2017.03.17
不同改进灰色模型在广西年用水量预测中的应用研究
Application of different improved grey model on the water consumption prediction in Guangxi
摘要
Abstract
Based on the annual water consumption data from 2005 to 2014 in Guangxi, the gray GM (1,1) model was used for prediction.In order to improve the prediction precision, the traditional grey GM (1,1) model was improved in different ways.It is found that the prediction results of the four grey models are ideal, and the average precision reached 99.5%.The precision of the traditional grey GM(1,1) model is 99.0%, the function transformation improved grey model is 99.4%, the revised residual grey model is 99.7%, and the weakening operator treated grey model is 99.9%, also the reliability of water consumption in Guangxi in grey model are fully verified.关键词
用水量/灰色模型/函数改进/残差修正/弱化算子Key words
water consumption/grey model/the function improvement/residual correction/weakening operator分类
建筑与水利引用本文复制引用
杜懿,麻荣永..不同改进灰色模型在广西年用水量预测中的应用研究[J].水资源与水工程学报,2017,28(3):87-90,4.基金项目
国家自然科学基金项目(51369005) （51369005）
广西防灾减灾与工程安全重点实验室系统性研究项目(2013ZDX04) （2013ZDX04）
