chebwin

粒子群标准算法，共六个m文件，对于粒子群算法的初学者有用。(The standard particle swarm algorithm)

An Introduction to Pattern Recognition: matlab approach

BP（Back Propagation）网络是一种按误差逆传播算法训练的多层前馈网络，是目前应用最广泛的神经网络模型之一。 BP网络能学习和存贮大量的输入-输出模式映射关系，而无需事前揭示描述这种映射关系的数学方程。 它的学习规则是使用最速下降法，通过反向传播来不断调整网络的权值和阈值，使网络的误差平方和最小。BP神经网络模型拓扑结构包括输入层（input）、隐层(hide layer)和输出层(output layer)。 通过对信息的提取以及记忆，用作分类、聚类、预测等。 (BP (Back Propagation) network is a pre-press error back propagation algorithm Multilayer feedforward network, is one of the most widely used neural network model. BP network can learn and store a large amount of input- output mode mapping without prior reveal mathematical equations that describe the mapping relationship. It s learning rule is to use the steepest descent method, by reverse spread to constantly adjust the network weights and thresholds and the minimum sum of squared error of the network. BP neural network topology comprises an input layer (input), hidden layer (hide layer) and an output layer (output layer). By extracting information and memory, it is used as classification, clustering, prediction.)

采用YUV+K-means对路标进行提取，效果十分不错。(YUV+ k-means is adopted to extract road signs, and the effect is very good.)

％ If only 1 output is specified, then dataout (a matrix the same size as ％ data) is returned. The order of t and align is immaterial, as long as ％ the data matrix is input first.( If only 1 output is specified, then dataout (a matrix the same size as data) is returned. The order of t and align is immaterial, as long as the data matrix is input first.)

该算法是通过统计图像某一边缘法向方向的灰度变化情况来进行评价。即灰度变化越剧烈， 边缘越清晰， 图像也越清晰。(The algorithm is an edge of the image through the statistical method to change the direction of the gray scale to be evaluated. The more intense the gray change, the more clear the edge of the image are more clear.)

插值与拟合,里面包含很多小程序，而已直接运行(Interpolation and fitting, which contains many small programs, it runs directly)

说明：  Matlab遗传算法工具箱及应用》源码，学习遗传算法编程的朋友很有用，内容讲的很仔细(Matlab Genetic Algorithm Toolbox, and Applications &quot source code, learning genetic algorithm programming friend of useful content speak very carefully)

sobel edge detection

new model of function