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add_remove_list
使用MATLAB编写的GUI程序 可实现list菜单的增减(GUI using MATLAB program can be prepared to achieve changes in the menu list)
- 2009-01-09 14:32:16下载
- 积分：1
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503
电饭煲控制源程序 很实用 很强大
你们一定喜欢(Rice cooker is very useful source control is very strong that you will love)
- 2009-12-23 15:01:39下载
- 积分：1
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n_m
编程实现n进制数转换为m进制数。吴泽乐，吴泽乐(Programming n to m decimal conversion hexadecimal number. WU Ze-Le, WU Ze-Le)
- 2010-03-07 13:02:43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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Who-TinhChuong1
thesis for grad university
- 2011-05-19 04:40:08下载
- 积分：1
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manage-student
manage student in university
- 2014-10-16 18:12:36下载
- 积分：1
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FEM-MATLAB
Finite element method introduction in matlab
- 2013-10-01 19:58:24下载
- 积分：1
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verbal_snonyms-antonyms
English learning ,Easy verbal and synonyms for CAT.
- 2015-01-31 10:12:55下载
- 积分：1
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SPWVD
时频分析方法中的平滑威格尔分布，可用于信号处理。(Time frequency analysis of spWeigel distribution method, which can be used for signal processing.)
- 2015-03-20 14:40:08下载
- 积分：1
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danxiangPR
单相基于PR控制的逆变器并网simulink搭建图，不错，很值得学习哦。(PR-based single-phase inverter control and network structures simulink diagram, yes, it is worth learning, oh.)
- 2021-04-24 08:58:47下载
- 积分：1
