1) projection pursuit classification model
投影寻踪分类模型
1.
Research on projection pursuit classification model based on particle swarm optimization algorithm;
基于粒子群算法的投影寻踪分类模型研究
2) sequential projection pursuit cluster model
序列投影寻踪聚类模型
3) Projection Prusuit Cluster
投影寻踪聚类模型
1.
The Projection Prusuit Cluster(PPC) is applied to evaluate the water resources bearing capacity of Yinchuan,and the genetic algorithm(GA) is used to optimize the projection direction.
构建了银川市水资源承载能力的指标体系,选用投影寻踪聚类模型对银川市水资源承载能力进行了评估,投影方向选用遗传算法进行优化。
4) Projection pursuit model
投影寻踪模型
1.
Projection pursuit model can give a comprehensive assessment projection index based on the indexes of regional agricultural eco-environmental quality,and according to the value of projection index,a(reasonable) assessment result can be drawn and it is easy to do in practice.
研究建立了区域农业生态环境质量综合评价的投影寻踪模型,利用该模型可将反映区域农业生态环境质量的多个指标转换为反映各指标综合信息的投影特征值,并根据投影特征值的大小对区域农业生态环境质量进行客观评价,方法可靠,结果合理,操作简便且易于生产应用。
2.
This paper used projection pursuit model and genetic algorithm to evaluate soil fertility, and based on advantages of dealing with high dimensional data of PP and global rapid optimum seeking of GA which achieved good results.
为此,运用投影寻踪模型和遗传算法对土壤肥力综合评价进行了研究,充分利用了投影寻踪模型在处理高维数据和遗传算法在全局快速寻优方面的优势,取得了很好的效果。
3.
To attempt to apply projection pursuit model to evaluate profitability of enterprise,the listed company of household appliance industry was taken as the research object and applied projection pursuit model to evaluate profitability of listed company of household appliance industry.
为尝试将投影寻踪模型应用于企业盈利能力评价,以家电行业上市公司为研究对象,运用投影寻踪模型对各家电上市公司盈利能力进行综合评价。
5) Projection Pursuit Cluster Analysis
投影寻踪聚类分析
1.
Projection Pursuit Cluster Analysis and Its Application on Financial Performance Appraisal of Listed Companies;
投影寻踪聚类分析及其在上市公司财务绩效评价中的应用研究
6) the project pursuit model about the parameter
参数的投影寻踪模型
补充资料:滤波反投影或卷积反投影
滤波反投影或卷积反投影
影像学术语。当代影像学设备进行影像重建的数学方法。在直接用扫描后所获得的投影轨迹剖面图反投影重建出的CT图像中,无法避免角度卷入条纹伪影(angular aliasing streaks)造成的模糊和失真。这种现象与被扫描层面的空间频率中高频信息的损失有关。使用一种精密的数学方法去除这种模糊。称为“展现”(unfolding)或去卷积(deconvolution),即在反投影前使用一种数学的“滤器”或卷积函数对原始数据进行修正,然后再进行反投影。两步数学处理过程合称为滤波(修正后)反投影或卷积(后)反投影。这种方法的优点是处理过程简单,速度快,所得图像逼真、清晰。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条