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xindao
求解任意信道容量的迭代算法，求解方便而且实用。(Channel capacity to solve any of the iterative algorithm, solving convenient and practical.)
- 2009-10-28 19:55:50下载
- 积分：1
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tft
matlab环境下编写的fft算法实现的源代码(prepared environment matlab algorithm fft source code)
- 2009-05-20 22:12:56下载
- 积分：1
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newton-raphson
newton raphson algorithm
- 2013-12-25 03:30:23下载
- 积分：1
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MATLAB函数库查询辞典
本辞典实例精心筛选，短小精悍、针对性强是一本掌握和精通MATLAB编程的使用手册。适合于各类进行MATLAB计算和开发的工程人员和研究人员查询使用。(This dictionary carefully selected examples, small, targeted is a master and the use of MATLAB programming manual. It is suitable for all kinds of engineers and researchers for MATLAB calculation and development.)
- 2018-03-20 20:23:29下载
- 积分：1
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getncinfo
查看netcdf文件的变量，以及变量的维度，属性，还有和属性的名称等(See netcdf file variables, as well as the dimension of variables, attributes, as well as the names and attributes, such as)
- 2009-06-05 17:39:04下载
- 积分：1
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randinterval
说明： matlab实验中，用来确认嵌入信息位置的程序，包含了randinterval.m。(matlab experiment, the information used to identify the location of embedded programs, including the randinterval.m.)
- 2011-02-24 16:00:33下载
- 积分：1
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new
how bit loading is done by the help of SNR
- 2013-08-06 18:53:13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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PQandNRchaoliulast
说明： NR法和PQ法潮流计算程序，均是由matlab编写而成的。(NR method and the PQ load flow calculation program)
- 2011-03-11 11:45:37下载
- 积分：1
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Region-growing-algorithm-
基于matlab的区域生长算法，可以对图像进行分割处理。 (Matlab-based region growing algorithm to the image segmentation.)
- 2011-05-02 09:14:15下载
- 积分：1
