-
efg1d
一篇优秀的无网格伽辽金方法入门文章。这篇文章最好的地方在于——提供了matlab源码。方便大家了解和学习无网格的编程实现(An excellent method EFGM article entry. This article is the best place- to provide a matlab source code. U.S. to facilitate understanding and learning programming meshless realize)
- 2007-11-07 15:54:32下载
- 积分:1
-
fuzzy
说明: 用于模糊控制率的求取,参照了李国勇书中的例子,在运行前,请将文件名改成英文格式(Fuzzy control rates for the strike, with reference to Li Guoyong book example of running before, please format the file name into English)
- 2011-04-18 14:25:53下载
- 积分:1
-
uu_la_audio_wm2001
audio watermarking using dc level shifting
- 2012-04-14 21:58:56下载
- 积分:1
-
simplex-matlab(1)
实现数值分析中单纯形法改进方法的matlab代码,即改进单纯形法算法,能够实现大型稀疏矩阵的迭代,这是3/3..(Numerical analysis to achieve improved method simplex method matlab code that modified simplex method algorithm, to achieve large sparse matrix iteration, which is 3/3)
- 2013-09-04 08:34:44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
-
BiaoDing
自己做的双目标定的MATLAB标定实例,附带图像和仿真程序!(Make their own calibration of the binocular calibration of MATLAB examples, incidental images, and simulation program!)
- 2009-11-22 17:24:16下载
- 积分:1
-
sldemo_engine
The constant reverse voltage of the zener diode makes it a valuable component for the regulation of the output voltage against both variations in the input voltage from an unregulated power supply or variations in the load resistance. The current through the zener will change to keep the voltage at within the limits of the threshold of zener action and the maximum power it can dissipate.
- 2012-03-25 14:50:38下载
- 积分:1
-
gausselimination_partial_pivot.m
Gauss Elimination Partial Pivoting
- 2013-04-06 19:20:06下载
- 积分:1
-
kemllman
卡尔曼滤波程序。实现多维卡尔曼滤波卡尔曼滤波程序。实现多维卡尔曼滤波(Kalman filter procedure.维卡尔曼realize multi-filter
)
- 2012-04-15 14:27:34下载
- 积分:1
-
sober-edge-detection
matlab不用库函数的边缘检测程序 MATLAB在图像处理中的应用 Sobel算子的原理及应用算法设计 程序设计
(matlab library function without edge detection program MATLAB image processing applications in Sobel operator theory and application programming algorithm design)
- 2013-11-18 10:20:31下载
- 积分:1