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mat_tsp
说明: 遗传算法解决 TSP 问题matlab源程序 (genetic algorithm to solve TSP source Matlab)
- 2006-05-03 23:54:34下载
- 积分:1
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推荐下载基于空域和频域的迭代盲复原算法调试程序
是国外的成品模型,模拟数据分析处理的过程,一种噪声辅助数据分析方法,表示出两帧图像间各个像素点的相对情况,鲁棒性好,性能优越,单径或多径瑞利衰落信道仿真。
- 2022-02-07 04:36:22下载
- 积分:1
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lazhu
matlab绘图的一个程序,程序不是很长 但比较经典 (very good)
- 2010-07-11 22:17:24下载
- 积分:1
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harr_matlab
haar wavelet source code implemented by matlab
- 2009-12-19 13:40:26下载
- 积分:1
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SPEECH-SYNTHESIS
Speech Synthesis is more important to analyze digital signal
- 2015-04-07 07:06:01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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gongji
用于视频水印的攻击实验以及实验结果。通用攻击。(For video watermarking attacks, and experimental results. General attack.)
- 2010-12-07 16:27:10下载
- 积分:1
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libsvm-mat-2.81
CJ.Lin的著名软件:LibSVM,实现的是SVM分类、回归的快速算法。在Matlab 7.0环境下直接调用。(CJ.Lin the leading software : LibSVM achieve the SVM classification algorithm for the rapid return. Matlab 7.0 environment directly call.)
- 2007-04-11 16:50:04下载
- 积分:1
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weicaise
数字图像处理 基于遥感图像的滤噪处理及伪彩色增强技术的研究(Digital image processing technology based on remote sensing image noise filtering, processing and pseudo-color enhancement)
- 2012-06-17 22:42:04下载
- 积分:1
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matlabFor-Pitch
使用Matlab进行wav文件的基音频率提取,包括自相关法、平均幅度差法和倒谱法等。(Wav files in Matlab to extract the pitch frequency, including the auto-correlation method, average magnitude difference method and the cepstrum method.)
- 2021-01-08 09:58:51下载
- 积分:1