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EMfor_neural_networks
In this demo, I use the EM algorithm with a Rauch-Tung-Striebel smoother and an M step, which I ve recently derived, to train a two-layer perceptron, so as to classify medical data (kindly provided by Steve Roberts and Will Penny from EE, Imperial College). The data and simulations are described in: Nando de Freitas, Mahesan Niranjan and Andrew Gee Nonlinear State Space Estimation with Neural Networks and the EM algorithm After downloading the file, type "tar -xf EMdemo.tar" to uncompress it. This creates the directory EMdemo containing the required m files. Go to this directory, load matlab5 and type "EMtremor". The figures will then show you the simulation results, including ROC curves, likelihood plots, decision boundaries with error bars, etc. WARNING: Do make sure that you monitor the log-likelihood and check that it is increasing. Due to numerical errors, it might show glitches for some data sets.
(In this demo, I use the EM algorithm with a Rauch-Tung-Striebel smoother and an M step, which I ve recently derived, to train a two-layer perceptron, so as to classify medical data (kindly provided by Steve Roberts and Will Penny from EE, Imperial College). The data and simulations are described in: Nando de Freitas, Mahesan Niranjan and Andrew Gee Nonlinear State Space Estimation with Neural Networks and the EM algorithm After downloading the file, type "tar-xf EMdemo.tar" to uncompress it. This creates the directory EMdemo containing the required m files. Go to this directory, load matlab5 and type "EMtremor". The figures will then show you the simulation results, including ROC curves, likelihood plots, decision boundaries with error bars, etc. WARNING: Do make sure that you monitor the log-likelihood and check that it is increasing. Due to numerical errors, it might show glitches for some data sets.
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- 2008-03-05 19:22:23下载
- 积分:1
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qam16
在基带仿真16qam的matlab仿真程序,统计了系统的误比特性能。(16QAM in the base-band simulation of matlab simulation program, statistics of the system BER performance.)
- 2008-05-07 09:41:24下载
- 积分:1
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boxcounting
用于计算盒维数的程序,分形维数的一种,分形理论是近年热门(it is for capacity dimension, and the capacity dimension is one of the fractal dimensions。Fractal thoery is the heat tropic nowadays)
- 2020-11-16 23:59:39下载
- 积分:1
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matlab-chengxusheji
内容丰富基础的matlab使用方法,新手的好帮手(introduction to matlab)
- 2012-05-06 21:07:12下载
- 积分:1
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Simulation1
信标节点位于等边三角形顶点的仿真Simulation1(The Simulation Simulation1 beacon node is located in an equilateral triangle vertices)
- 2013-04-11 13:37:05下载
- 积分:1
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mymatla3
几种语音增强关于mmse算法,维纳滤波,掩蔽增强(err)
- 2007-07-14 10:48:46下载
- 积分:1
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ofdm1
the ofdm simulink file
- 2015-01-21 15:52:02下载
- 积分:1
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emd
EMD algorithm..used in speech processing, breaks trhe signal upto fundamental levels
- 2014-02-24 16:03:10下载
- 积分:1
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bp-network
matlab写的人工神经网络的例子,附有处理图片和注释(matlab written examples of artificial neural networks with image processing and annotation)
- 2008-12-15 20:51:53下载
- 积分:1
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wanzhengchengxu
信号在信道进行传输时,经常会出现串扰,采用基于最大似然序列估计(MLSE)的电子色散均衡器的方法,克服光纤通信中的由各种色散引起的码间干扰。
研究基于最大似然序列估计(MLSE)的均衡器,采用维特比算法实现,用matlab仿真出采用MLSE后的性能指标(眼图和误码率)的提升。
(Signal transmission channel often occur crosstalk, based on the maximum likelihood sequence estimation (MLSE) electronic dispersion equalizer of the ways to overcome optical fiber communications in a variety of dispersion caused by the inter-symbol interference. Research based on the maximum likelihood sequence estimation (MLSE) of the equalizer, the Viterbi algorithm, a simulation using matlab after using MLSE performance indicators (eye diagram and bit error rate) of the upgrade.)
- 2020-12-12 22:29:16下载
- 积分:1