摘要
把灰色预测模型 GM(1,1)的微分形式表达成差分格式以将 GM模型拓广 ,再用模糊灰色系统理论优化 GM拓广模型、确定最优 ω* 参数 ,以提高 GM方法的精度。为使此方法具有充分理论依据和实际应用价值 ,从理论上对 GM模糊灰色优化方法进行了研究 。
The grey model GM(1,1) with a differential format was converted into a difference one to extend GM and then the extended GM model was optimized. The optimal parameter ω * was determined by the fuzzy grey system method to predict the accuracy of GM model. To have a solid theoretical fundamental and a practical value, the method was not only theoretically derived and analyzed, but also verified by a practical application.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2003年第2期129-131,共3页
Transactions of the Chinese Society for Agricultural Machinery
基金
山东省科技发展计划项目(项目编号:012050107)
山东省自然科学基金项目(项目编号:Y2002F19)
关键词
机械学
机械系统
灰色模型
模糊贴近度
Mechanical science, Mechanical systems, Grey model, Fuzzy nearness
