摘要
基于城市产业结构发展现状及其变化趋势,建立BP神经网络模型和灰色GM(1,1)等维新息模型的组合模型,对城市产业结构演变趋势进行预测分析,以提高预测的精确性,并对城市产业结构演变过程中各产业比重进行权重修正,以保障城市产业结构比重之和恒定为常数1,为正确认识城市产业演变趋势和内部关系提供准确的信息。
According to the present situation of urban industrial structure and its change tendency,BP NN model and GM(1,1)constant dimension mew information model are established to forecast the evolutionary tendency of urban industrial structure for the accuracy of forecast. Then the industrial percentage is modified on the basis of the weight in the evolutionary process of urban industrial structure to ensure the amount of industrial percentage as constant 1,which offer exact information to recognize the evolutionary tendency of urban industrial structure correctly and the relationship among them.
出处
《中国名城》
2009年第4期14-17,共4页
China Ancient City
