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BM3D
The Block-Matching and 3D Filtering (BM3D) algorithm is a computationally scalable algorithm based on this novel denoising strategy. It achieves state-of-the-art denoising performance in terms of both peak signal-to-noise ratio and subjective visual quality.
- 2010-01-08 15:16:09下载
- 积分：1
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matlab_GUI
this is matlab gui guide.
- 2010-05-29 01:10:32下载
- 积分：1
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two_d_dct_serial
two d dct program implementation in matlab
- 2009-02-26 21:09:08下载
- 积分：1
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STFT
This program is about short time fourier transform.
- 2009-04-19 17:39:51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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基于MATLAB的有源滤波器的实现
说明： 基于MATLAB的有源滤波器的实现，很简单，能看懂。(The realization of active filter based on MATLAB is simple and understandable.)
- 2020-06-19 09:40:01下载
- 积分：1
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MSC
对近红外光谱图进行处理，主要是消除颗粒分布不均匀及颗粒大小产生的散射影响。(To deal with the near infrared spectra, mainly eliminate the uneven distribution of particles and the scattering effects of particle size.
)
- 2013-10-03 23:03:33下载
- 积分：1
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CH5src
matlab在通信系统仿真第二版 第五章例题代码(matlab second edition of the communication system simulation code example Chapter)
- 2011-11-15 10:02:03下载
- 积分：1
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analyse_numerique_MATLAB
Numerical analyse with matlab
- 2015-04-14 15:23:28下载
- 积分：1
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Ex15_2_ParticleEx2
粒子滤波目标跟踪程序，地面雷达跟踪一个下落物体的弹道系数、速度和位置。(Particle filter target tracking procedures, ground radar tracking ballistic coefficient, velocity and position of a falling object.)
- 2013-01-12 15:57:35下载
- 积分：1
