蚌埠学院学报
蚌埠學院學報
방부학원학보
JOURNAL OF BENGBU COLLEGE
2014年
5期
28-32
,共5页
组合预测%改进灰关联度%IOWHA算子%变权系数
組閤預測%改進灰關聯度%IOWHA算子%變權繫數
조합예측%개진회관련도%IOWHA산자%변권계수
combination forecasting%improved grey incidence%IOWHA operator%changing weight
通过引入诱导有序加权调和平均( IOWHA)算子,提出基于改进灰关联度的IOWHA算子组合预测模型,并给出了优性组合预测模型的概念。此组合预测模型是一种变权系数组合预测模型,可以克服传统组合预测方法赋予不变的加权平均系数和以单一误差衡量预测精度的缺陷。最后给出实例说明新方法能有效提高组合预测精度。
通過引入誘導有序加權調和平均( IOWHA)算子,提齣基于改進灰關聯度的IOWHA算子組閤預測模型,併給齣瞭優性組閤預測模型的概唸。此組閤預測模型是一種變權繫數組閤預測模型,可以剋服傳統組閤預測方法賦予不變的加權平均繫數和以單一誤差衡量預測精度的缺陷。最後給齣實例說明新方法能有效提高組閤預測精度。
통과인입유도유서가권조화평균( IOWHA)산자,제출기우개진회관련도적IOWHA산자조합예측모형,병급출료우성조합예측모형적개념。차조합예측모형시일충변권계수조합예측모형,가이극복전통조합예측방법부여불변적가권평균계수화이단일오차형량예측정도적결함。최후급출실례설명신방법능유효제고조합예측정도。
Based on induced ordered weighted harmonic averaging ( IOWHA) operator,a weight-changed combination forecasting model was proposed ,and the conception of superior combination forecasting model was given .The model is a changed weight factors model which can overcome some deficiencies in weigh -ting and using single error index as forecasting precision measure of traditional combination forecasting model.Finally,an example was illustrated to show that the new model can improve forecasting precision effectively .