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music_sprctrum
说明： music谱分析 运用数字信号谱分析，快速简便的算法(music spectrum)
- 2010-04-17 11:57:33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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matlab
电子书：matlab基础基础及其应用。这是学习matlab的很好的书，另外一起打包了英文的matlab编程技巧(EBook: matlab based on the foundation and its application. This is a good learning matlab book, another package of the English matlab programming skills)
- 2009-01-09 19:48:33下载
- 积分：1
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calMultiInfo
说明： 基于matlab得计算两幅图像的互信息得程序。(Matlab calculation based on two images of each other may have to process information.)
- 2010-04-03 22:11:08下载
- 积分：1
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chap4matlab
实例10：阶梯图
实例11：枝干图
实例12：罗盘图
实例13：轮廓图
实例14：交互式图形
实例15：变换的傅立叶函数曲线(Example 10: Ladder Diagram Example 11: Example branches Figure 12: Compass Chart Example 13: The contour map instance 14: 15 Interactive graphic example: the Fourier transform function curve)
- 2011-05-20 01:50:29下载
- 积分：1
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physical-methods-of-networks
复杂网络研究中常用的几种统计物理学方法（ 平均场理论、主方程、率方程、生成函数的物理背景、 发展历史、 观点、 思想和方法及应用. (Complex network research several commonly used statistical physics methods (mean field theory, master equation, the rate equation, generating physical background function, development history, perspectives, ideas and methods and applications.)
- 2015-02-25 13:40:55下载
- 积分：1
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kanong
这是世界名曲“卡农”的matlab版本，采用m编程语言，歌曲优美动听。在学习之余不防静静聆听洗涤内心的浮躁。(This is the world famous " Canon" matlab version, the m programming language, beautiful sounds of the song. In the study anti quietly listening to the washing inner impetuous.)
- 2012-11-26 12:09:09下载
- 积分：1
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PCA-SIFT
PCA 降维 有代码可以运行的哦 亲 PCA 降维 有代码可以运行的哦 亲 PCA 降维 有代码可以运行的哦 亲 (The code of PCA)
- 2012-10-19 22:35:27下载
- 积分：1
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qiumian
说明： 基于Matlab的基阵方向性仿真,球面坐标网格的基阵方向性图(An Approach of FCM Clustering Segmentation for Building Groups
from Urban Aerial Images
)
- 2009-08-11 02:13:33下载
- 积分：1
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fangzheng2
对连续反应搅拌器进行一些列的仿真 比如找取平衡点等等(Simulation of continuous reaction stirrer some columns, such as fetch equilibrium point)
- 2013-05-21 14:09:43下载
- 积分：1
