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fix_channel
固定卫星信道仿真源码 主要考虑雨衰因素(Fixed satellite channel emulation source major consideration Rain attenuation factor)
- 2010-03-12 23:37:15下载
- 积分:1
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Bluetooth-communication-system-
利用matlab中simulink进行蓝牙扩频通信系统的仿真,研究其的性能。( Bluetooth FM communication system are simulated with the use of matlab/simulink, and study the performance of the system
)
- 2012-05-06 21:48:14下载
- 积分:1
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prj2AFinal
training a neural networks using error back propagation algorithm
- 2014-12-19 01:46:52下载
- 积分:1
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conv
covolution is a technique used to sample two signals producing the third signal.there are two types of convolution namely linear and circular convolution.
- 2015-01-08 13:48:01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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cycloneIII_3c120_dev_power_demo
cycloneIII_3c120_dev_power_demo atlera公司官方例程(cycloneIII_3c120_dev_power_demo atlera company official routines)
- 2014-12-15 17:09:14下载
- 积分:1
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sa4tsp
运用matlab7.0编写的应用sa处理旅行商问题(The preparation of the application of the use of matlab7.0 Traveling Salesman Problem sa deal)
- 2009-06-22 10:07:05下载
- 积分:1
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quadtree
Quad-tree algorithm for gray-scale images (1-channel). Implemented on MATLAB for segmentation.
- 2011-05-08 19:18:35下载
- 积分:1
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ATR-Trailer趋势EA
说明: 这是一款根据均线开单的趋势EA,加载周期30分钟,货币主要跑镑系的,和美元的(This is a trend EA based on the average, loading cycle of 30 minutes, currencies mainly run in pounds, and the U.S. dollar.)
- 2020-06-17 10:40:02下载
- 积分:1
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testLVBO
FIR数字滤波器在工程上运用广泛.窗函数法设计FIR数字滤波器是典型的设计方法。目前。相关课程的教科书对窗函数法设计FIR
散字滤波器这部分内容讲解不够细致,学生掌握感到有难度。本文针对窗函数法设计FIR数字滤波器的相关问题.即数字滤波器与模拟样本
滤波器的关系、截断点如何取值和数字滤波器的线性相移特性,结合实例进行分析。并借助Matlab仿真软件对设计进行了分析和验证.(FIR digital filters widely used in engineering. Window method is a typical design FIR digital filter design methods. Present. Related courses textbooks window functions designed FIR filter scattered words to explain this part carefully enough, students are difficult to master. This window function method for the design of FIR digital filters related issues. Samples of the digital filter and analog filter between values and the cut-off points to the linear phase shift digital filter characteristics, with examples for analysis. And using Matlab simulation software design analysis and verification.)
- 2010-05-18 09:49:39下载
- 积分:1