-
IBM
This is matlab program for the creating a target tracking trajectory and now program is archived with .rar arrchiver.
- 2010-06-03 04:01:57下载
- 积分:1
-
enhancement
滚动轴承故障诊断基于复Morlet小波滤波和增强的自相关算法(Rolling element bearing faults diagnosis based on optimal Morlet wavelet filter and autocorrelation enhancement)
- 2016-01-23 22:09:01下载
- 积分:1
-
LLE
此算法是著名的流行学习算法,可以用于数据特征的提取,维数约减等操作。(This algorithm is a famous and usefule algorithm for extrating the fature or reducing the dimension.)
- 2010-01-03 18:27:01下载
- 积分:1
-
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
-
qianweishi
给出一个具体逆变器钳位式的仿真实例,通过仿真 ,可以得出实际运行中的电压、电流的波形
(Clamped inverter is given a specific type of simulation examples, the simulation can be drawn from the actual operation of the voltage and current waveforms)
- 2011-07-14 17:47:11下载
- 积分:1
-
KLtransform
KL变换的matlab代码,KL变换是图像正交变换的一种,在图像压缩领域有着广泛应用。很有用哦(KL transform matlab code, KL transform is a kind of orthogonal transformation image in the field of image compression have broad application. Oh, very useful)
- 2007-11-14 20:51:21下载
- 积分:1
-
SVG
说明: SVG模型在matlab的仿真原理图,SVG模型在matlab的仿真原理图(svg matlab)
- 2020-10-19 10:47:28下载
- 积分:1
-
wyqthd
该程序对搜索树的方法,使配电网的供电路径进行选择(The program of the search tree method, make the distribution network power supply path selection
)
- 2012-04-16 16:45:58下载
- 积分:1
-
abs_model
汽车制动防抱死系统的MATLAB/SIMULINK仿真模型,通过门限值作用(MATLAB/SIMULINK simulation model of automobile anti-lock braking system, through the threshold effect)
- 2020-12-11 16:29:18下载
- 积分:1
-
paidui
mm1排队模型的matlab源码,从c语言裸转过来的,主要解决排队论在matlab中的仿真问题(mm1 queue model matlab source code, from the c language naked in turn, mainly queuing theory to solve the simulation problem in matlab)
- 2009-09-12 10:23:04下载
- 积分:1