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matlab1
MATLAB 简单编程 包括很基础的程序(MATLAB programming including very simple basic procedures)
- 2007-07-03 17:41:23下载
- 积分：1
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23825741Moving_Least_Squares
说明： 移动最小二乘matlab程序，适合于曲面曲线拟合(Matlab moving least square procedure, suitable for surface fitting)
- 2008-08-28 12:33:34下载
- 积分：1
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vector_axis_plot
说明： 行向量绘图，在matlab中对于含有大量的数据，单独在一张静态的图上是显示效果是很不理想的，这个程序实现了在matlab中以示波器的形式动态的显示器波形图(Row vector graphics in matlab in containing a large amount of data, alone in a static chart is to show the effect is not ideal, the realization of this procedure in matlab in the form of oscilloscope waveform display dynamic)
- 2009-08-09 11:35:16下载
- 积分：1
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CaoSVDintro---Copy
face recognition program
- 2013-01-09 21:00:57下载
- 积分：1
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bcs_ver0.1
compressive sensing:Bayesian Compressive Sensing
- 2011-06-02 15:20:40下载
- 积分：1
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adaboost
AdaBoost元算法属于boosting系统融合方法中最流行的一种，说白了就是一种串行训练并且最后加权累加的系统融合方法。
具体的流程是：每一个训练样例都赋予相同的权重，并且权重满足归一化，经过第一个分类器分类之后，
计算第一个分类器的权重alpha值，并且更新每一个训练样例的权重，然后再进行第二个分类器的训练，相同的方法.......
直到错误率为0或者达到指定的训练轮数，其中最后预测的标签计算是各系统*alpha的加权和，然后sign（预测值）。
可以看出，训练流程是串行的，并且训练样例的权重是一直在变化的，分错的样本的权重不断加大，正确的样本的权重不断减小。
AdaBoost元算法是boosting中流行的一种，还有其他的系统融合的方法，比如bagging方法以及随机森林。
对于非均衡样本的处理，一般可以通过欠抽样(undersampling)或者过抽样(oversampling)，欠抽样是削减样本的数目，
过抽样是重复的选取某些样本，最好的方法是两种进行结合的方法。
同时可以通过删除离决策边界比较远的样例。
(AdaBoost boosting systems dollar fusion algorithm is the most popular one, it plainly systems integration approach is a serial train and final weighted cumulative.
Specific process is: Each training example is given equal weight, and the weights satisfy normalization, after the first classifiers after
Calculating a first classifier weights alpha value for each sample and updates right weight training, and then the second classifier training, the same way .......
0, or until the specified error rate training rounds, wherein the label is the calculation of the final prediction system* alpha weighted and then sign (predicted value).
As can be seen, the training process is serial, and weight training examples is always changing, the right of the wrong sample weight continued to increase, the right to correct sample weight decreasing.
AdaBoost algorithm is an element, as well as other methods of boosting popular systems integration, such as bagging and random forest method.
For )
- 2014-07-09 19:24:29下载
- 积分：1
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hist_processing_codes
hi
this folder contains five matlab codes for gray level image histogram processing
i hope that you will accept me in your site
- 2009-10-08 10:26:21下载
- 积分：1
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costas-matlab
锁相环仿真，基于matlab的源代码，比较靠谱！(The phase-locked loop simulation matlab source code more reliable!)
- 2012-12-29 16:52:49下载
- 积分：1
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BPSK_Simulation
also sometimes called PRK, phase reversal keying, or 2PSK) is the simplest form of phase shift keying (PSK). It uses two phases which are separated by 180° and so can also be termed 2-PSK.
- 2015-02-03 18:57:17下载
- 积分：1
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pcd-lab.tar
parser program for compiler design
- 2015-02-13 00:00:51下载
- 积分：1
