基于BP网络的水质综合评价模型及其应用

Water quality comprehensive assessment model using BP networks and its applications

讨论了BP网络模型存在的不足及建模条件 ,提出了建立合理的BP网络模型的基本原则和步骤。针对水质评价问题 ,通过在各类水质污染指标浓度区间内生成随机分布样本的方法 ,组成足够多用于BP网络训练、检验和测试用的样本 ,建立了辽河水质综合评价的BP网络模型 ;

The shortcomings and the modeling conditions of BP networks were discussed, and the essential principles and modeling steps were thus put forward in this paper. As to water quality assessment, a new approach producing training set data, verification set data, testing set data and critical value set data randomly distributed between the critical values was established. The water quality assessment model was set up.