matlab_learning_2nd_ed

这是一个比较有用的小程序，能对被水印出理过的图象进行检测，效果很明显．(This is a relatively small program useful, can be a watermark image over the rationale for testing, the effect is obvious.)

PSO算法和最速下降法混合算法，求解单目标优化问题，测试函数是非线性方程组，解决MinF(x)的问题。(PSO algorithm and steepest descent method hybrid algorithm for solving single-objective optimization problem, the test function is non-linear equations, solving MinF (x) of the problem.)

Input: X, training data, dim*num Y, training data labels, num*class para.alpha, para.beta, regularization parameters para.rd, reduced dimensionality Web Image Annotation via Subspace-Sparsity Collaborated Feature Selection. Zhigang Ma, Feiping Nie, Yi Yang, Jasper Uijlings, and Nicu Sebe. IEEE Transactions on Multimedia (TMM) 14(4):1021-1030, 2012.

MATLAB 2010a中有关数组的介绍和讲解(Introduce and explain MATLAB 2010a in array)

解耦，恢复原信号，能量谱分析计算,一个很有用的程序。( Decoupling, restore the original signal, Energy spectrum analysis and calculation, A very useful program.)

Moving sign application

常用的MATLAB插值算法，包括高斯，牛顿插值等等(Interpolation algorithm commonly used)

计算时间序列的快速傅里叶变换并画出时域和频域图，之前进行小波降噪。(Calculate the time series and fast Fourier transform time-domain and frequency domain plot diagram, before wavelet decomposition.)

率失真曲线的生成代码，自定义信源结构及迭代误差。附带实验说明(Rate-distortion curve of the generated code, custom source structure and iterative error. Help with experiment)

奇异值分解用于英文文本检索，画出频率矩阵第一奇异值向量和第二奇异值向量的分布图( a fast retrieval algorithm for English texts is proposed. First of all, the English texts are mapped into frequency matrixes of order 26 and the dimensions of texts representation space are reduced through Singular Value Decomposition. Second, it fuses the features of the first singular value component and the second one, and then gets the complex feature vectors which reflect not only the statistic frequency but also the sequential structure of letters. )