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The first scheme is based on the spatial locality of feature vectors corresponding to similar images. Learning is effected by modifying the query vector to incorporate the positive examples. The second scheme is based on “distorting” our view of the feature space. An new similarity distance between an image and the query is learned from the relevance feedback.

1,、设置变量和参量： 　　X(n)为输入向量，或称为训练样本 　　W(n)为权值向量 　　e(n)为偏差 　　d(n)为期望输出 　　y(n)为实际输出 　　η为学习速率 　　n为迭代次数 　　2、初始化，赋给w(0)各一个较小的随机非零值，令n=0 　　3、对于一组输入样本x(n)和对应的期望输出d，计算 　　e(n)=d(n)-X^T(n)W(n) 　　W(n+1)=W(n)+ηX(n)e(n) 　　4、判断是否满足条件，若满足算法结束，若否n增加1，转入第3步继续执行(, set the variables and parameters: X (n) is the input vector, otherwise known as the training sample W (n) for the weight vector e (n) for the deviation d (n) is the desired output y (n) is the actual output η is the learning rate n is the number of iterations)

关于hilbert 空间填充曲线算法的应用(Hilbert space filling curve algorithm)

在WINDOWS环境下，使用MATLAB写的PCA代码，移植性好，对于做PCA的能方便使用！(In the WINDOWS environment, the use of PCA written in MATLAB code, portability, and for doing the PCA can easily use!)

清华大学的中文版的Matlab基础教程，适合初学者入门用。喜欢的下(Tsinghua University, the Chinese version of the Matlab Basic Course, suitable for beginners to use portal. Like the next)

一个matlab 编写的调用HFSS的折合偶极子例子，属于联合仿真问题。(A matlab the invocation of the equivalent dipole example of HFSS, belongs to the joint simulation problems. )

对二阶倒立摆进行仿真，利用S函数搭建模块，实现对非线性二阶倒立摆的控制仿真(Inverted pendulum on the second simulation, the use of S-function to build the module, to achieve second-order non-linear simulation of inverted pendulum control )

复合辛普森 改进欧拉法 高斯消去法 复合梯形法(Improved Euler Method Composite Simpson composite trapezoidal method of Gaussian elimination)

MATLAB练习可以作基本的应用练习，帮助建立(MALABSCIENCE)

Test Bank for Problem Solving with C++: The Object of Programming