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som
MRI Brain Tumour Classification - SOM ( Self Organized Map)(MRI Brain Tumour Classification- SOM ( Self Organized Map))
- 2009-03-30 11:11:47下载
- 积分：1
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bessel_l
All zero points for Bessel (zero points for Bessel)
- 2006-12-18 19:33:01下载
- 积分：1
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Minimum-Risk-Bayes-classifier
这是模式识别中最小风险Bayes分类器的设计方案。在参考例程的情况下，自行完善了在一定先验概率的条件下，男、女错误率和总错误率的统计，放入各个数组当中。
全部程序由主函数、最大似然估计求取概率密度子函数、最小错误率贝叶斯分类器决策子函数三块组成。
调用最大似然估计求取概率密度子函数时，第一步获取样本数据，存储为矩阵；第二步对矩阵的每一行求和，并除以样本总数N，得到平均值向量；第三步是应用公式（3-43）采用矩阵运算和循环控制语句，求得协方差矩阵；第四步通过协方差矩阵求得方差和相关系数，从而得到概率密度函数。
调用最小风险贝叶斯分类器决策子函数时，根据先验概率，再根据自行给出的5*5的决策表，通过比较概率大小判断一个体重身高二维向量代表的人是男是女，放入决策数组中。
主函数第一步打开“MAIL.TXT”和“FEMALE.TXT”文件，并调用最大似然估计求取概率密度子函数，对分类器进行训练。第二步打开“test2.txt”，调用最小风险贝叶斯分类器决策子函数，然后再将数组中逐一与已知性别的数据比较，就可以得到在一定先验概率条件下，决策表中不同决策的错误率的统计。
(This is a pattern recognition classifier minimum risk Bayes design .In reference to the case of routine , self- improvement in a certain a priori probability conditions, male , female and total error rate error rate statistics , into which each array .
All programs from the main function , maximum likelihood estimation subroutine strike probability density , the minimum error rate Bayesian classifier composed of decision-making three subfunctions .
Strike called maximum likelihood estimate probability density subroutine , the first step to obtain the sample data , stored as a matrix the second step of the matrix, each row sum , and divided by the total number of samples N, be the average vector The third step is the application of the formula ( 3-43 ) using matrix and loop control statements , obtain the covariance matrix fourth step through the variance-covariance matrix and correlation coefficient obtained , resulting in the probability density function .
Bayesian classifier )
- 2012-02-02 20:37:04下载
- 积分：1
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MAC_Cavity
Computational Fluid Dynamic Finite Diferences Matlab code that simulates fluid in a cavity with a moving lid. Uses MAC method.
- 2009-09-24 10:19:34下载
- 积分：1
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Wavelet_Estimation
计算时间序列的Hurst系数有许多方法，但是其中最准确的就是利用小波法来计算，本程序用Matlab实现了用小波来计算Hurst系数。(Calculation of the Hurst coefficient of time series has a number of ways, but one of the most accurate method is to use wavelet basis, the procedures used to achieve the use of Matlab to calculate the Hurst coefficient of wavelet.)
- 2008-03-27 13:54:38下载
- 积分：1
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978-7-03-023264-9
说明： 例题运行步骤:在Matlab命令窗口将本章目录置于当前目录；在Matlab命令窗口的当前目录中打开本章目录中的M文件Exam.m；在Exam.m文件中，将待运行例题前的注释符号“ ”去掉，并保留其他例题前的注释符号“ ”；在命令窗口键入：Exam 并回车即可运行该例题。(Example run these steps: In the Matlab command window will be placed in this chapter directory the current directory in the Matlab command window to open the current directory in the directory of this chapter M files Exam.m in Exam.m file, will be run before the note symbol example " " removed and reserved comment symbol in front of the other examples, " " in the command window, type: Exam and press Enter to run the examples.)
- 2010-04-22 17:04:21下载
- 积分：1
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hdb3
说明： 利用matlab 对随机信号进行 hdb3码编码(liyong matlab duixinhao jinxing hdb3 Coding)
- 2011-04-12 21:57:19下载
- 积分：1
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MRC-DIVERSITY
THIS FILE PLOTS THE PERFORMANCE OF MAXIMUM RATIO COMBINING DIVERSITY TECHNIQUE.
- 2014-10-27 18:39:26下载
- 积分：1
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AnPAdaptivePThreshold
在传统canny边缘检测的基础上，进一步进行自适应阈值的边缘检测方法的研究，比传统的方法有很大的优越性(Traditional canny edge detection on the basis of further adaptive threshold edge detection method, there are a lot of advantages than traditional methods)
- 2013-05-18 09:47:06下载
- 积分：1
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mytest
人脸识别的matlab程序，bp神经网络的应用(Face recognition matlab program, bp neural network applications)
- 2010-05-14 13:16:27下载
- 积分：1
