摘要
针对装备维修器材采购价格合理化问题,提出了一种改进的灰色关联分析模型,以装备维修器材市场价格为母序列,不同时间窗对国内生产总值等影响市场价格的多种因素为子序列,并将母序列数据变化率、子序列变化趋势异同频次、子序列变化率差等分别作为评判指标,分析母、子序列的不同变化量指标以获取关键影响因素,旨在提高定价影响因素分析的准确性。最后,通过实例分析验证了所提方法的有效性与适用性。
Aiming at the rationalization of the purchase price of equipment maintenance material,an improved grey correlation analysis model is proposed,which takes the market price of maintenance material as the parent sequence,and multiple factors affecting market prices such as GDP in different time windows as subsequences.The data changing rate of the parent sequence,the different frequencies of changing trend and the changing rate of the subsequence are used as the evaluation index to analyze the different changes index and obtain the key influencing factors so that the accuracy of the price influencing factors can be improved.Finally,the effectiveness and applicability of the proposed method are verified by an example.
作者
陈曦
史宪铭
张桦
陆欣
CHEN Xi;SHI Xianming;ZHANG Hua;LU Xin(Army Engineering University,Shijiazhuang 050030,China;National Defense University,Shijiazhuang 050084,China)
出处
《装甲兵学报》
2022年第4期50-55,74,共7页
Journal of Armored Forces
关键词
灰色关联分析
装备维修器材
定价影响因素
采样周期
grey correlation analysis
equipment maintenance material
price influencing factors
sampling period
