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matlabdianzishu
说明: mstlab学习很好的资料,帮助你很快掌握该软件(mstlab learning good information to help you quickly master the software)
- 2011-04-12 09:26:40下载
- 积分:1
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speech_enhancement
自己编写的用谱相减,最小均方和维纳滤波实现语音增强的matlab文件(themselves with the preparation of spectral subtraction, the minimum mean square Wiener filtering and enhanced voice document Matlab)
- 2006-06-11 10:13:39下载
- 积分:1
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octree-based-codes
该程序介绍了有关八叉树编码的基本编程知识,对于初级学者易懂易学。(This program introduces the octree encoding basic programming knowledge, which ishelpful for junior scholars to understand.)
- 2014-10-21 19:19:45下载
- 积分:1
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qy_group_target_tracking
群目标跟踪算法,里面有部分群目标算法程序,对科研人员有帮助(Group target tracking algorithm, there are some groups target algorithm for help researchers)
- 2014-04-25 20:22:42下载
- 积分:1
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cgLineSearch.m
Quadratic interpolation line search with backtracking fallback
- 2012-03-28 02:32:45下载
- 积分:1
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simulate
基于ZigBee的室内视频定位跟踪的指纹定位算法仿真,给出仿真结论(Simulation results based on ZigBee for indoor video location and tracking of fingerprint localization algorithm simulation)
- 2021-03-24 08:19:14下载
- 积分:1
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New-Folder
it will help to remove speckle noise remove using wavelet filters in medical images
- 2014-10-08 16:53:43下载
- 积分:1
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Radar-System-Modeling-and-Simulation
雷达系统建模与仿真报告,包括雷达系统的建立,各部分信号模拟。及信号输入与输出的处理(Radar System Modeling and Simulation report, including the establishment of the radar system, each part of the signal simulation. And the signal input and output processing)
- 2021-03-18 21:39:19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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SER
写了著名的最小均方准则下的自适应算法,在matlab环境下运行(Wrote a well-known least mean square criterion of the adaptive algorithm, running in matlab environment)
- 2007-10-26 23:15:17下载
- 积分:1