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Position: Home > Articles > Application of PPC Model Based on RAGA in Evaluation on Heavy Metal Pollution in Soil Journal of Henan Agricultural Sciences 2005,34 (10) 62-65

基于RAGA的投影寻踪模型在土壤重金属污染评价中的应用

作  者:
刘慧卿;张先起;杨会娟
单  位:
济南圣奥消防工程有限公司;华北水利水电学院;四川大学水电学院
关键词:
RAGA;PPC;模型;土壤;重金属污染;评价
摘  要:
将投影寻踪分类模型(PPC)应用于土壤环境质量综合评价中,利用基于实码的加速遗传算法(RAGA)来优化投影方向,将多维数据指标转换成低维子空间,通过寻求最优投影方向来计算投影函数值,从而根据投影值的大小进行土壤综合评价。并结合实例进行了应用,其结果合理,避免了权重确定的人为干扰,为土壤环境质量评价提供了一条新的方法和思路。
译  名:
Application of PPC Model Based on RAGA in Evaluation on Heavy Metal Pollution in Soil
作  者:
LIU Hui-qing~1,ZHANG Xian-qi~2,YANG Hui-juan~(1.North of China Institute of Water Conservancy&Hydro-electric Power,Zhengzhou 450008,China;2.College of Hydroelectric Engineering,Sichuan University,Chengdu 610065,China;.Jinan Sheng'ao Fire Control Engineering Ltd.Company,Jinan 250001,China)
关键词:
RAGA;PPC;Model;Soil;Heavy metal pollution;Evaluation
摘  要:
Through applying PPC model in the comprehensive evaluation of soil quality,RAGA was used to optimize the projection direction,and turn multi-dimension data into low dimension space.The value of projection function could be calculated by way of seeking the optimal projection direction,thereby,according to the value,comprehensive evaluation of soil quality could be process.The outcome from concrete application indicates that it is suitable to evaluate soil quality,has avoided the problem of calculating coefficient of weight subjectively,and provides a new method and thought to comprehensive evaluation of soil quality.

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