科技创新导报
科技創新導報
과기창신도보
SCIENCE AND TECHNOLOGY CONSULTING HERALD
2014年
33期
245-247
,共3页
时间序列%马尔科夫链%指数平滑法
時間序列%馬爾科伕鏈%指數平滑法
시간서렬%마이과부련%지수평활법
Time Series%Markov Model%Exponential Smoothing Method
该文基于零售业商品零售额的实际值,应用指数平滑法进行预测了2012年零售业零售额,以-25%、-20、-15%、-10%为划分阈值,将指数平滑法预测结果的相对误差划分为4个状态区间,应用马尔科夫模型对指数平滑法的预测结果进行修正,并与指数平滑法的预测结果进行比较。最后用马尔科夫模型进行修正并对预测结果加以评价。提出的方法精度较高,满足实际需求。
該文基于零售業商品零售額的實際值,應用指數平滑法進行預測瞭2012年零售業零售額,以-25%、-20、-15%、-10%為劃分閾值,將指數平滑法預測結果的相對誤差劃分為4箇狀態區間,應用馬爾科伕模型對指數平滑法的預測結果進行脩正,併與指數平滑法的預測結果進行比較。最後用馬爾科伕模型進行脩正併對預測結果加以評價。提齣的方法精度較高,滿足實際需求。
해문기우령수업상품령수액적실제치,응용지수평활법진행예측료2012년령수업령수액,이-25%、-20、-15%、-10%위화분역치,장지수평활법예측결과적상대오차화분위4개상태구간,응용마이과부모형대지수평활법적예측결과진행수정,병여지수평활법적예측결과진행비교。최후용마이과부모형진행수정병대예측결과가이평개。제출적방법정도교고,만족실제수구。
Based on The actual value,commodity retail sales of retail business of Guangdong Province in 2012 were predicted by using exponential smoothing method.Taking -25%、-20、-15%、-10%as division threshold values,the relative errors of prediction results by using exponential smoothing method were divided into four state intervals,the prediction results of exponential smoothing method were modified by using Markov model,and compared with exponential smoothing method.The proposed the prediction results of exponential smoothing method were modified by using Markov model.The proposed method has higher precision to meet the actual demands.