FEM_2D

Mean Shift 这个概念最早是由Fukunaga等人[1]于1975年在一篇关于概率密度梯度函数的估计中提出来的,其最初含义正如其名,就是偏移的均值向量,在这里Mean Shift是一个名词,它指代的是一个向量,但随着Mean Shift理论的发展,Mean Shift的含义也发生了变化,如果我们说Mean Shift算法,一般是指一个迭代的步骤,即先算出当前点的偏移均值,移动该点到其偏移均值,然后以此为新的起始点,继续移动,直到满足一定的条件结束. 用matlab实现mean shift算法仿真(Mean Shift the concept was first used by Fukunaga et al [1] in 1975 in an article on the probability density function estimation of gradient raised its original meaning, as its name implies, is the offset of the mean vector, where is the Mean Shift a noun, it refers to a vector, but with the Mean Shift the development of the theory, Mean Shift the meaning has changed, if we say that Mean Shift algorithm, generally refers to an iterative steps, namely, first calculate the current point Mean offset, move the shift points to its average, and then as a new starting point and continue to move until the end to meet certain conditions. realize using mean shift algorithm matlab simulation)

ldpc编译码包括生成矩阵算法，稀疏矩阵编码，概率译码等等(ldpc encode and encode)

水平集快速步进算法的源码，参考书籍为：Level sets and fast matching algorim.(Level set fast marching algorithm source code, reference books as: Level sets and fast matching algorim.)

说明：  拥有matlab用户界面的卡尔曼滤波程序-MATLAB源代码(Matlab user interface with Kalman filter-MATLAB source code program)

its a matlab discription of varius digitl filers both in special and frequency domain. very useful for beginners.

PSO_DynamicEnvironment是用粒子群算法（particle swarm algorithm）解决动态环境寻优（最优值不断变化）的问题。文件打开后运行PSO_DynamicEnvironment.m文件即可得到结果，代码中有详细注释，方便修改。运行示例已经保存为图片附在压缩包中。(PSO_DynamicEnvironment solve dynamic environment particle swarm optimization algorithm (particle swarm algorithm) (optimal value changing) problems. Run PSO_DynamicEnvironment.m file to get the file to open the result, the code has detailed notes, easy to modify. Run the sample has been saved as a picture attached to the compressed package.)

语音的端点检测是根据语音的特征来进行了，本文根据语音不同帧之间能量的不同，一帧一帧的进行比较(Speech endpoint detection is based on the characteristics of voice, different voice between the different frames of energy, a one to compare)

本程序用于模拟复杂网络，并计算复杂网络平均路径长度、聚类系数、度分布，及其他特性分析，可为模拟探究复杂网络提供参考。(This procedure is used to simulate complex network, complex network and calculate the average path length, clustering coefficient, degree distribution, analysis, and other features, can provide reference for simulation to explore the complex networks. )

PCA特征脸训练和重建程序，比较好用，欢迎下载(Eigenface PCA training and reconstruction procedures, compared to-use, welcome to download)

ant colony optimization