pca

粒子群优化算法（PSO）是一种进化计算技术（evolutionary computation）,由Eberhart博士和kennedy博士于1995年提出 (Kennedy J，Eberhart R． Particle swarm optimization．Proceedings of the IEEE International Conference on Neural Networks．1995．1942~1948.)。源于对鸟群捕食的行为研究。粒子群优化算法的基本思想是通过群体中个体之间的协作和信息共享来寻找最优解． (Particle Swarm Optimization (PSO) is an evolutionary computation techniques (evolutionary co mputation) by Dr. Eberhart and kennedy Dr. raised in 1995 (Kennedy, J., Eberhart R. Particle swarm optimization.Proc eedings of the IEEE International Conference o n Neural Networks.1995.1942 ~ 1948.) . From the flock of the predatory behavior. PSO algorithm is the basic idea of individual groups through the sharing of information and collaboration to find the optimal solution.)

梯度下降法是最早最简单，也是最为常用的最优化方法。梯度下降法实现简单，当目标函数是凸函数时，梯度下降法的解是全局解。一般情况下，其解不保证是全局最优解，梯度下降法的速度也未必是最快的。梯度下降法的优化思想是用当前位置负梯度方向作为搜索方向，因为该方向为当前位置的最快下降方向，所以也被称为是”最速下降法“。最速下降法越接近目标值，步长越小，前进越慢。(The gradient descent method is the earliest and most simple and most commonly used optimization method. The gradient descent method is simple to realize. When the objective function is a convex function, the solution of the gradient descent method is a global solution. In general, the solution is not guaranteed to be the global optimal solution, and the gradient descent method is not necessarily the fastest. The optimization idea of gradient descent method is to use the current position negative gradient direction as the search direction, because the direction is the fastest descending direction of the current position, so it is also called the steepest descent method. The faster the slowest descent approach is closer to the target, the smaller the step, the slower the progress.)

LMS算法仿真，通过matlab仿真LMS算法的收敛速度(lms)

phone book for add or remove telephone numbers in text file

风能功能实现，包括DFIG以及风电场的各种模型。主要由PSCAD软件搭建的模型。包括线路故障，低电压穿越，以及线路测距的各种模型。(The wind and a variety of functions, including DFIG model of wind farm. Mainly by the PSCAD software to build the model.Including the fault line, low voltage ride through, and a variety of models ranging in line.)

SVM matlab的源代码，用于建立支持向量机模型(code for svm)

好用的程序,多去查资料，你会有很大的收获(good)

adaptive huffman coding and decoding in matlab..

小孩排队问题，从任选一个小孩开始，出队，任隔几个小孩数数，数到几可以出队(Children queuing problem, choose one child from the beginning, the team, he was counting every few kids, a few to a few can be a team)

本程序用C语言实现直角坐标系下的牛拉法潮流计算(power flow calculation program using C language under the rectangular coordinate system )