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Taflove_Codes
codes for Taflove s FDTD book.
- 2009-11-27 01:49:48下载
- 积分：1
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syszlmx
交通分布 双约束重力模型 matlab程序(A matlab program of Dual-constrained Gravity Model in traffic distribution.)
- 2013-01-04 14:58:56下载
- 积分：1
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IFS
L-system and IFS are used to the plant s simulation. In this package the theories of L-system and IFS were concisely described. The excellence and short of constructing Fractal image with L-system or IFS were discussed. So a method was put forward in this package. At last the three-dimension tree model ceatrs successfully based on L-system and IFS.
- 2013-03-13 16:42:04下载
- 积分：1
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continuous-GA
continues GA matlab code
- 2013-05-13 15:10:22下载
- 积分：1
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Assignment1a
Our aim is to solve a set of linear equations by the use of a single layer feedforward Neural
Network
- 2013-03-06 23:12:20下载
- 积分：1
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larsmatlab
主要是lasso和lars的MATLAB程序，其中含有例子和数据。(Mainly lasso and lars MATLAB program, which contains examples and data.)
- 2014-11-06 20:47:42下载
- 积分：1
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matlab
我自己写了一个函数： 该函数用来计算任意函数的一阶偏导数(数值方法)
(I wrote a function: The function used to calculate the arbitrary function of the first-order partial derivative (numerical methods))
- 2008-07-24 11:14:11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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garnder
实现了Gardner算法的仿真，可以直观的分析其实现同步的过程(Realize the simulation of Gardner algorithm ,and the process of synchronization can be analyzed intuitively.)
- 2019-03-21 14:44:21下载
- 积分：1
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wogan
基于matlab编写的蜗杆齿面仿真源代码，希望对大家有用(Matlab prepared based on the worm tooth surface simulation source code, everyone would like to be useful)
- 2009-04-03 17:14:15下载
- 积分：1
