2) genetic algorithm-projection pursuit
遗传-投影寻踪
3) genetic projection pursuit
遗传投影寻踪
1.
The methods of PQCE(Power Quality Comprehensive Evaluation)are classified,including probability and vector algebra,fuzzy mathematics,matter-element,analytic hierarchy process,artificial neutral network and genetic projection pursuit.
对目前几种典型电能质量综合评估方法:概率统计与矢量代数方法、模糊数学方法、物元分析法、层次分析法、人工神经网络法和遗传投影寻踪方法进行了分类,并对其评估原理及流程进行了系统的总结。
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) genetic projection pursuit method
遗传投影寻踪方法
1.
Two new methods of PQCE based intelligence, which including artificial neural network (ANN) and genetic projection pursuit method (GPPM), were proposed in the paper.
本文论述了电能质量综合评估的重要意义,提出了基于人工神经网络和基于遗传投影寻踪方法的两种智能化的电能质量综合评估方法。
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