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su-fdtd3Dplanewave
susan编写的三维平面波入射的FDTD程序(susan write three-dimensional plane wave incident FDTD program)
- 2011-08-26 22:05:50下载
- 积分：1
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Odefun5
间歇反应釜的matlab建模，M文件，c可自由改变(Modeling of batch reactor)
- 2013-12-16 20:15:44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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Cambridge_University_System_Identification_Toolbox
剑桥大学的系统辨识工具箱，对许多应用都比较有用(Cambridge University System Identification Toolbox, for many applications are more useful)
- 2007-10-11 16:20:48下载
- 积分：1
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wavelwts_transform
用下面的程序产生并显示与小波db4相关联的四个滤波器组.小波函数db4的迭代生成过程.单尺度一维离散小波分解与重构(With the following procedures and display associated with the db4 wavelet filter banks of four. Db4 wavelet function to generate the iterative process. Single-scale one-dimensional discrete wavelet decomposition and reconstruction)
- 2009-06-08 18:18:30下载
- 积分：1
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GARSR
遗传算法处理粗糙集分析题中的属性约简。同时能根据实际空气数据生成决策表。(The genetic algorithm of rough set attribute reduction problem in analysis. At the same time, according to the actual air data to generate the decision table.)
- 2015-04-08 07:25:30下载
- 积分：1
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cg5
source code in matlab for simulating diffrent noise models
- 2010-10-04 21:28:27下载
- 积分：1
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doublependulum
二级倒立摆的仿真 用simulink对二级倒立摆的模糊控制仿真(Simulation of double inverted pendulum with a double inverted pendulum on simulink fuzzy control simulation)
- 2020-11-12 11:59:44下载
- 积分：1
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eulerAngles2rotationMatrix
euler角转到rotation matrix by AJMAL SAEED MIAN(euler angle to rotation matrix by AJMAL SAEED MIAN)
- 2013-02-10 19:43:27下载
- 积分：1
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T1-ondas
Guide wave on a line
- 2013-12-17 22:09:54下载
- 积分：1
