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围绕粒子群的当前质心对粒子群重新初始化.这样，每个粒子在随后的迭代中将在新的位置带着粒子在上次搜索中获得的“运动惯性”（wvi）向Pi，Pg的方向前进，从而可以在粒子群的运动过程中获得新的位置，增加求得更优解的机会.随着迭代的继续，经过变异的粒子群又将趋向于同一点，当粒子群收敛到一定程度时又进行下一次变异，如此反复，直到迭代结束.(particle swarm around the center of mass of the current PSO reinitialization. Thus, Each particle in the next iteration will be in the new location with particles in the last search was the "inertia" (wvi ) Pi, Pg orientation, and thus can PSO course of the campaign was a new position, increase seek better solutions opportunities. With the continued iteration, after variation of PSO will tend to the same point. When PSO converge to a certain extent when the next variation, so repeatedly, until the end of iteration.)

利用此程序，可以对图片的直方图特征进行提取，进而进行图片的分类，并统计出分类的正确率。(With this program, you can picture the extraction, and then classify pictures and statistics of the correct rate of classification.)

基于时域有限差分法（FDTD），用MATLAB编程计算双球金纳米颗粒的局域电磁场增强(二维)的程序||2sphere2D.m(Base on FDTD ,local field enhancement of gold double sphere nanoparticles（2D）by Matlab || 2sphere2D.m)

ANN using PSO coding

these files contain matlab documents and programs.

说明：  基于matlab 的chan算法不加角度(Matlab-based algorithm for the chan no angle)

经典的基于GA遗传算法的路径规划问题的实现，能动态的实现所需功能，值得学习研究(The path planning problem of GA based on genetic algorithm classic, can realize the dynamic functions are required, it is worth learning research)

来自中国知网的所有的关于BSS SCA的最新的论文，期刊及MATABLE知识点。内容齐全(Text from China for all the latest on BSS SCA papers, periodicals and MATABLE knowledge points. Complete content)

first code written in c++ for generating 3D tetrahedral elements inside unite cube with sphere inside it.

matlab画图的英文说明，有点小用处，没时间翻译，请见谅(how to plot pretty figure in matlab)