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read_nco1
利用MATLAB软件,读取QuartusII软件里的TBL数据(use Matlab to read the TBL date of the QuartusII software)
- 2010-05-24 21:21:10下载
- 积分:1
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the-parachute
在数学建模培训中,降落伞问题很是突出,联系此题对同学有很大的提高,从而程序也很重要。所以发此文件。(Parachute Su snow modeling program title race body)
- 2013-09-14 15:59:41下载
- 积分:1
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naturalfreq
Natural frequency of shell bubble compare to free bubbles
- 2014-02-26 02:37:45下载
- 积分:1
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Cao
Cao方法求嵌入维数,代入数据即可运行,只是速度有点慢。(Cao method of embedding dimension seeking, on behalf of the data to run, but a bit slow)
- 2020-11-21 17:19:35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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STD-(1)
对所采集的数据进行分析,可进行模态分析,阻尼特性的识别等。(Data were collected for analysis, modal analysis, identification damping characteristics.)
- 2014-09-25 22:00:05下载
- 积分:1
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dcmotor
DC MOTOR SIMULATION USING SIMULINK
- 2015-01-28 00:26:22下载
- 积分:1
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triangular_squaretetm
这里总共有4个Matlab编制的设计光子晶体滤波器的程序供大家交流(Here a total of four Matlab photonic crystal filter design prepared for your exchange program)
- 2011-09-16 10:32:57下载
- 积分:1
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bfstree
It is used for Breadth First Search to search the edges in matlab
- 2013-11-12 16:49:04下载
- 积分:1
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fhog
利用c语言编写的,在matlab环境下运行mex函数可以生成动态的dll库,可以用来计算图像区域的梯度向量直方图特征。(Use c language, in the matlab environment running mex function can generate dynamic dll library that can be used to calculate the gradient vector histogram image area.)
- 2021-02-03 11:29:59下载
- 积分:1