三峡大学学报（自然科学版）2018，Vol.40Issue(3)：19-23,5.DOI:10.13393/j.cnki.issn.1672-948X.2018.03.005
改进GM(1,1)模型在重力坝位移预测中的应用
Application of Improved GM(1,1)Model to Rredicting Gravity Dam Displacements
摘要
Abstract
Taking a certain project for example,an improved GM(1,1)model is proposed in light of the de-fects of classical GM(1,1)in predicting dam displacements in the grey system.The essence of the model is to regenerate a sequence,namely,the classical GM(1,1)model is used to create a model and prediction after ac-celerating exponential transformation and geometric average generation transformation of non-negative ran-dom oscillation sequences.It is mentioned that dam horizontal displacements of the project from May 29th to June 10th are forecasted;and the results are compared with those predicted through traditional linear regres-sion method and the classical GM(1,1)model.The calculation results show that the improved GM(1,1)mod-el prediction accuracy is higher;the method obtains a nice effect.关键词
灰色模型/改进GM(1,1)模型/大坝位移/预测Key words
grey system/improved GM(1/1)model/dam displacement/prediction分类
建筑与水利引用本文复制引用
祖安君,黄显峰..改进GM(1,1)模型在重力坝位移预测中的应用[J].三峡大学学报（自然科学版）,2018,40(3):19-23,5.基金项目
国家自然科学基金重点项目(51739003,41323001) （51739003,41323001）
国家自然科学基金项目(51479054,51779086,51579086,51379068, 51579083,51579085,51609074) （51479054,51779086,51579086,51379068, 51579083,51579085,51609074）
国家重点研发计划 (2016YFC0401601) （2016YFC0401601）
国家重点实验室专项基金 (20145027612, 20165042112) （20145027612, 20165042112）
中央高校基本科研业务费项目(2017B11114,2015B20714,2015B25414) （2017B11114,2015B20714,2015B25414）
