环境质量评价的模式识别分析

目前,环境质量评价工作进展很快,国内外在评价的实践中已提出了几十种不同类型的方法,但模式识别在环境评价中的应用才刚刚开始。本文基于上海某区的环境质量评价,介绍了一种新的方法——计算机模式识别分析之一(主成份法),它以30个测点作为训练样本,以4个不同的污染分指数为变量,进行加权、特征组合,对模式空间进行划分,从而获得客观的环境质量分级,并将结果与原系统分级比较,同时对随机的5个测点进行分级判别,其符合程度令人满意。

Pattern Recognition Analysis Eor Environmental Ouality Assessment

Rapid progress has been got recently on research of environmental quality assessment. This paper presents a new approach-Pattern Recognition Analysis on Computer,based upon environmental quality assessment work done in a certa- in district of Shanghai,which deals with four variables from different pollution indexes,and makes a pattern space. An objective classification of environmental quality can be obtained.The results computed from the discriminating classifica- tion of training and predicting samples are the very same to that systematic clas- sification.