摘要
为检验水质评价标准的合理性 ,解决各单项水质指标评价结果的不相容问题 ,提高水质评价模型的分辨率 ,提出了一种新的模型———投影寻踪模型 ,它的评价结果是实数值 .实例的计算结果说明 ,该方案是有效的和通用的 。
In order to test the evaluation criterions of water quality,to resolve the nonuniformity problem of evaluation results of water quality indexes,and to raise the resolution of water quality comprehensive evaluation,a new model projection pursuit(PP)model is suggested,where the evaluation results are real numbers.A scheme of PP modeling is also presented to reduce the computational amount,a new function of projection indexes is given,and it is suggested that both the function of projection indexes and the parameters of PP model can be optimized by using real coding based genetic algorithm.The calculation example shows that the scheme is effective and general,which can be applied to comprehensive evaluation of other environmental quality.
出处
《环境科学学报》
CAS
CSCD
北大核心
2001年第4期431-434,共4页
Acta Scientiae Circumstantiae
基金
国家自然科学基金项目 (4 98710 18)
国家自然科学基金
长江水利委员会联合资助项目 (5 0 0 996 2 0 )
关键词
水质综合评价
投影寻踪
遗传算法
模型
comprehensive evaluation of water quality
projection pursulit
genetic alogorithm
