改进投影寻踪模型在砾石形成评价中的应用  

Application of Modified Projection Pursuit Evaluation Model in Evaluation of Gravel Formation

作　　者：吴旻[1] 王振亮[1] 郑金兴[1] 钱永平[1] 

机构地区：[1]福建林业职业技术学院,福建南平353000

出　　处：《武夷学院学报》2016年第6期76-79,共4页Journal of Wuyi University

基　　金：福建省林业厅科研资助项目(闽林科[2012]2号)

摘　　要：利用改进投影寻踪法可将砾石形成评价样本的多维评价指标综合成一维投影函数值,根据投影函数值的大小对砾石样本集进行科学评价、成因分类。实例分析表明,由砾石样本数据构建的改进投影寻踪模型对砾石成因评价准确性好,具有较强的适用性和应用性,可以在砾石成因评价与分类判定中应用。The modified projection pursuit method is a new method that used modified simplex method to realize？global？optimizationfor the parameters of projection direction. This new method was applied to evaluate the cause of formation of gravel, in which this techniquewas utilized to integrate the multi-dimensional indices into one-dimensional projection function value, then the gravel sample datawas evaluated and classified for its cause of formation scientifically based on the projection function value. Example analysis shows thatthe modified projection pursuit model which constructed by gravel sample data is good in evaluation the cause of formation of grave, withhigh accuracy, strong applicability and extensive application. This new method can be applied to evaluate and classify the cause of formationof gravel.

关 键 词：改进投影寻踪法 砾石 成因评价 

分 类 号：TU42[建筑科学—岩土工程]