机构地区: 华南理工大学电子与信息学院自动控制工程系
出 处: 《华南理工大学学报(自然科学版)》 1998年第10期84-88,共5页
摘 要: 首先导出了投入产出分析中,产出水平与需求水平之间、产出水平与投入水平之间的两对不兼容的线性关系式,并分析了产生不兼容性的根源和全局线性假设的局限性,最后提出了投入产出非线性建模的一种可能途径─—神经网络建模方法. First, two pairs of inconsistent linear formulas between gross output and final demand,and between gross output and primary input are derived respectively from traditional input-output models. Then, the cause of the inconsistency and the limitations of the linearity assumption are discussed. Finally, a possible modelling meth0d for nonlinear input-output analysis, namely, the neural network modelling method, is proposed.
领 域: [经济管理]