Sifeng Liu   

Professor
Supervisor of Doctorate Candidates

Main positions: Director of Institute for Grey Systems Studies

MORE> Recommended Ph.D.Supervisor Recommended MA Supervisor
Language:English

Paper Publications

Title of Paper:基于离散余弦变换的GM(1,1,d)预测模型

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Affiliation of Author(s):经济与管理学院

Journal:嘉兴学院学报

Key Words:GM(1,1,d)模型;离散余弦变换;离散余弦逆变换;预测模型;

Abstract:针对实测数据的噪声导致预测模型的预测精度下降问题,利用离散余弦变换对实数具有较强降噪功能的优势,结合灰色系统理论建模机理,构建基于离散余弦变换的GM(1,1,d)模型,并给出了相应的算法和步骤.该模型通过离散余弦变换对数据进行去伪存真的清洗,有效降低了随机扰动误差,提高了预测精度.算例表明,GM(1,1,d)模型能显著提高模型的预测精度.

Translation or Not:no

Date of Publication:2017-10-24

Co-author:刘中侠,jsq

Correspondence Author:Sifeng Liu

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