APPLICATION OF BP NETWORK IN EVALUATION OF GROUND WATER QUALITY

摘要

The aim of this paper is to evaluate the condition of the groundwater quality in lower reaches of YiTong river, which is based on the principle of the golden section to search the perfect number of hidden layer nodes, and then to establish the BP neural network. Furthermore, by comparing with fuzzy comprehensive evaluation method, gray clustering method and Nemero index method[2]respectively, it turns out BP neural network got a well performance.