吉林师范大学学报(自然科学版)
吉林師範大學學報(自然科學版)
길림사범대학학보(자연과학판)
JILIN NORMAL UNIVERSITY JOURNAL(NATURAL SCIENCE EDITION)
2014年
4期
54-56,60
,共4页
组合预测%单项模型选择%灰色聚类
組閤預測%單項模型選擇%灰色聚類
조합예측%단항모형선택%회색취류
combination forecasting%single model selection%grey clustering
建立组合预测模型关键是单项预测方法的筛选,本文将采用灰色聚类分析方法对单项预测模型组进行筛选。首先依据所研究的实际问题,建立多个单项预测模型,然后计算每一个单项预测方法的点拟合相对误差,最后再利用这些数据,借助灰色聚类方法实行对比评估,构建组合预测模型需求的各个单项模型,以增强该模型预测的准确性。应用实例的分析表明该方法是可行的和有效的。
建立組閤預測模型關鍵是單項預測方法的篩選,本文將採用灰色聚類分析方法對單項預測模型組進行篩選。首先依據所研究的實際問題,建立多箇單項預測模型,然後計算每一箇單項預測方法的點擬閤相對誤差,最後再利用這些數據,藉助灰色聚類方法實行對比評估,構建組閤預測模型需求的各箇單項模型,以增彊該模型預測的準確性。應用實例的分析錶明該方法是可行的和有效的。
건립조합예측모형관건시단항예측방법적사선,본문장채용회색취류분석방법대단항예측모형조진행사선。수선의거소연구적실제문제,건립다개단항예측모형,연후계산매일개단항예측방법적점의합상대오차,최후재이용저사수거,차조회색취류방법실행대비평고,구건조합예측모형수구적각개단항모형,이증강해모형예측적준학성。응용실례적분석표명해방법시가행적화유효적。
The key of establishing a combined forecasting model is the selection of single predicted method. In this paper,grey clustering analysis is applied to the selection of single forecasting model group. Reasonable single forecasting models are firstly established in accordance with the practical problems. Then the fitting relative errors from each single forecasting model are calculated. The data from the calculations are compared with each other by using grey clustering method to construct the individual model needed in each combination forecasting model. This practice will improve the predictive validity of combination forecasting. The analysis of application examples shows that the method is feasible and effective.