基于ELMAN网络的河流健康复杂系统综合评价

Comprehensive Assessment of River Health Complex System Based on Elman Network Model

结合河流健康系统的特点及Elman网络的优点,建立了河流健康复杂系统综合评价的Elman网络模型,有效地处理了评价过程中各单项指标的不相容性、非线性、不精确性和不确定性问题。将Elman网络模型应用于澜沧江流域结果表明,与RBF网络模型相比,Elman网络模型的评价结果精度更高、收敛速度更快、过程更为稳定,从而为河流健康复杂系统评价提供了一种新的有效的方法。

Based on the characteristics of river health complex system and the emerits of Elman network,this paper establishes Elman network model （ENM） for river assessment, which can efficiently solve the problems of indexes including incompatibility, nonlinearity,imprecision and uncertainty. And then ENM is applied in Lancang River. The positive results reveal that comparing with RBF network model,the precision,convergent speed and process of EMN are much higher,rapider and more stable. So Elman network model is an effective and feasible method for the comprehensive assessment of the river health complex system.