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self-organizing
基于自组织特征映射神经网络的图像压缩算法,EI检索论文,绝对有参考价值.(Based on self-organizing feature map neural network image compression algorithm, EI retrieval papers, the absolute reference value.)
- 2009-05-02 22:39:32下载
- 积分:1
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MATLAB_PLOT_AND_GUI
说明: 介绍MATLAB语言的一些基本语句,以及基本的编程方法。图形的绘制及GUI。(Introduce some basic MATLAB language statements, and basic programming. Graphics rendering and GUI.)
- 2010-04-02 11:28:53下载
- 积分:1
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near-field-inverse-problems
本书详细介绍了基于近场测试数据的逆散射问题的相关知识及其具体应用,这是近场问题的一个很好的例子,在人们都关注高频远场问题的背景下,提出近场的问题,对于计算电磁学的发展很有启发意义,我们的工程实际中,除了高频远场的应用外,低频近场也占有很大的份额,基于进场的反演是一个新兴的课题,需要我们共同去研究!(Book introduced in detail based on near field test data of the inverse scattering problem related knowledge and its practical application, this is a very good example of near field problems, people are concerned about the background of far field problem of a high frequency in the, near field is proposed, for the development of electromagnetism calculation is instructive. In the actual engineering, in addition to the high-frequency far field of application, low frequency near-field also occupies a large share of, based on the inversion approach is a new and developing subject, we go to study!)
- 2015-06-28 20:27:02下载
- 积分:1
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a
说明: 决策树(Decision Tree)是在已知各种情况发生概率的基础上,通过构成决策树来求取净现值的期望值大于等于零的概率,评价项目风险,判断其可行性的决策分析方法,是直观运用概率分析的一种图解法。由于这种决策分支画成图形很像一棵树的枝干,故称决策树。在机器学习中,决策树是一个预测模型,他代表的是对象属性与对象值之间的一种映射关系。Entropy = 系统的凌乱程度,使用算法ID3, C4.5和C5.0生成树算法使用熵。这一度量是基于信息学理论中熵的概念。
决策树是一种树形结构,其中每个内部节点表示一个属性上的测试,每个分支代表一个测试输出,每个叶节点代表一种类别。
分类树(决策树)是一种十分常用的分类方法。它是一种监督学习,所谓监督学习就是给定一堆样本,每个样本都有一组属性和一个类别,这些类别是事先确定的,那么通过学习得到一个分类器,这个分类器能够对新出现的对象给出正确的分类。这样的机器学习就被称之为监督学习。(Decision tree is a decision analysis method based on the known probability of occurrence of various situations, which can calculate the probability that the expected value of net present value is greater than or equal to zero, evaluate the project risk and judge its feasibility by constructing a decision tree. It is a graphic method of intuitively using probability analysis. Because this kind of decision branch is drawn as a graph, it is very similar to the branch of a tree, so it is called decision tree. In machine learning, decision tree is a prediction model, which represents a mapping relationship between object attributes and object values. Entropy = the disorder degree of the system, using algorithms ID3, C4.5 and C5.0, spanning tree algorithm using entropy. This measure is based on the concept of entropy in information theory.)
- 2021-02-01 15:02:09下载
- 积分:1
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rs
说明: 基于建筑抗震设计规范的反应谱(地震影响系数曲线)(Response Spectrum based on anti-seismic code for buildings)
- 2010-06-13 21:35:53下载
- 积分:1
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wjli_lum_en_local_bilateral
该方法通过原始象素亮度与周边象素亮度之间的关系获取增强系数,对已做全局亮度调整的图像进行图像增强(lum_en_local=wjli_lum_en_local_bilateral(lum_en_global,lum_ori,window_r,sigmad,sigmar))
- 2010-08-03 09:47:31下载
- 积分:1
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hydrogen_sph_harm
Three dimensional hydrogen atom spherical harmonics visualization.
- 2009-03-30 00:10:10下载
- 积分:1
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gs010
An Active Rectifier must be installed in a 60Hz 208V three-phase distribution system in
order to provide a high power quality 600V DC supply for a 150kW motor drive. The
active rectifier VSC and control is an American Superconductor (AMSC) PM-1000
Power Module with the Active Rectifier control option.
- 2014-10-26 15:30:14下载
- 积分:1
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shijiandaima
分形计算的几个程序原码,可用于康托集,求解非线性方程,分形树,分形维计算,庞加莱截面描述等功能(Several fractal program source code, Cantor set can be used for solving nonlinear equations, fractal tree, fractal dimension calculation Poincare section describes functions)
- 2013-04-12 16:02:07下载
- 积分:1
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matlab
数字图像频域滤波处理,分别进行二阶巴特沃斯(Butterworth)高通、低通滤波器。(Digital image processing frequency domain filtering, respectively second-order Butterworth (Butterworth) high pass, low pass filter.)
- 2013-07-10 18:46:01下载
- 积分:1