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.
标签： Rauch-Tung-Striebel algorithm smoother which
上传时间： 2016-04-15
上传用户：zhenyushaw
该程序为matlab环境下程序，主要演示“科学与艺术奇才”皮克欧沃的国王映射(King map)，可以生成许多类似三维的复杂曲面，调整参数，或者加上高阶摄动项，会得到更多的花样一个
上传时间： 2014-01-06
上传用户：fhzm5658
This LDPC software is intended as an introduction to LDPC codes computer based simulation. The pseudo-random irregular low density parity check matrix is based on Radford M. Neal’s programs collection, which can be found in [1]. While Neal’s collection is well documented, in my opinion, C source codes are still overwhelming, especially if you are not knowledgeable in C language. My software is written for MATLAB, which is more readable than C. You may also want to refer to another MATLAB based LDPC source codes in [2], which has different flavor of code-writing style (in fact Arun has error in his log-likelihood decoder).
标签： LDPC introduction simulation software
上传时间： 2014-01-14
上传用户：大融融rr
本程序是一个行计算器（即对表达式求值）。计算器能实现加、减、乘、除、取余（％）和乘方（^）运算；能实现三角函数（正弦函数sin和余弦函数cos），求10为底的对数log，求2为底的对数ln，求e的指数幂exp，其参数也可以是合法的表达式； 计算器并能对表达式的合法性进行测试，错误的能给出表达式错误的信息。 ] 输入文件格式：第一行是一个正整数N，表示有多少行表达式。接下来的N行每一行是 一个表达式。表达式使用由浮点数（只用小数点表示）和运算符表示。 输出格式：每个行输出一个表达式的结果（浮点输出结果使用小数点表示法表示，）
上传时间： 2016-05-27
上传用户：aeiouetla
包含附件中的头文件，就可以在出log时，将log写到文件中，方便调试。
上传时间： 2013-12-22
上传用户：lmeeworm
％ EM algorithm for k multidimensional Gaussian mixture estimation ％ ％ Inputs: ％ X(n,d) - input data, n=number of observations, d=dimension of variable ％ k - maximum number of Gaussian components allowed ％ ltol - percentage of the log likelihood difference between 2 iterations ([] for none) ％ maxiter - maximum number of iteration allowed ([] for none) ％ pflag - 1 for plotting GM for 1D or 2D cases only, 0 otherwise ([] for none) ％ Init - structure of initial W, M, V: Init.W, Init.M, Init.V ([] for none) ％ ％ Ouputs: ％ W(1,k) - estimated weights of GM ％ M(d,k) - estimated mean vectors of GM ％ V(d,d,k) - estimated covariance matrices of GM ％ L - log likelihood of estimates ％
标签： multidimensional estimation algorithm Gaussian
上传时间： 2013-12-03
上传用户：我们的船长
This LDPC software is intended as an introduction to LDPC codes computer based simulation. The pseudo-random irregular low density parity check matrix is based on Radford M. Neal’s programs collection, which can be found in [1]. While Neal’s collection is well documented, in my opinion, C source codes are still overwhelming, especially if you are not knowledgeable in C language. My software is written for MATLAB, which is more readable than C. You may also want to refer to another MATLAB based LDPC source codes in [2], which has different flavor of code-writing style (in fact Arun has error in his log-likelihood decoder).
标签： LDPC introduction simulation software
上传时间： 2014-12-05
上传用户：change0329
msLinux v1.0 可以在arm ads 下仿真运行的linux，对学习linux很有帮助 运行于ARMulate时，请选择在ARMulate目录下的map文件
上传时间： 2014-01-27
上传用户：qq521
用VHTL描述7段数码管器，输入为一个四位二进制，在数码管上显示数字的同时也显示这四位二进制。使用了port map语句
上传时间： 2016-06-17
上传用户：ruixue198909
C++STL STL（Standard Template Library，标准模板库)是惠普实验室开发的一系列软件的统称。它是由Alexander Stepanov、Meng Lee和David R Musser在惠普实验室工作时所开发出来的。现在虽说它主要出现在C++中，但在被引入C++之前该技术就已经存在了很长的一段时间。 STL的代码从广义上讲分为三类：algorithm（算法）、container（容器）和iterator（迭代器），几乎所有的代码都采用了模板类和模版函数的方式，这相比于传统的由函数和类组成的库来说提供了更好的代码重用机会。在C++标准中，STL被组织为下面的13个头文件：<algorithm>、<deque>、<functional>、<iterator>、<vector>、<list>、<map>、<memory>、<numeric>、<queue>、<set>、<stack>和<utility>。以下笔者就简单介绍一下STL各个部分的主要特点。
标签： STL Standard Template Library
上传时间： 2016-06-20
上传用户：cylnpy
