fenjifenge1

基于matlab编写了SQP法，乘子法，共轭梯度法，拟牛顿法，信赖域法，最速下降法与牛顿法的最新程序，功能很强大，可供编程参考。(Based on the preparation of MATLAB SQP, multiplier method, conjugate gradient method, quasi-Newton method, trust region method, steepest descent method with the Newton-Raphson method the latest procedures, functions very powerful, can be used for programming reference.)

说明：  共轭梯度法的代码 实现大型共轭对称方程组的求解(the code for conjugate gradient algorithm, which can be used for the solution of equations)

用于实现方差计算和画图 我用MATLAB编的程序，存为txt文档格式，方便大家查看。这是我们组在学校国际赛选拔赛时编的程序，用于实现方差计算和画图。可立即执行。(Variance calculation and graphics used to implement I use MATLAB code of the program, saved as txt file format to enable easy viewing. This is our group in the school when the series of international competitions qualifying procedures for the realization of the variance calculation and graphics. Can be implemented immediately.)

Day la 1 chuong trinh duoc viet boi hoc vien cao hoc khoa 20 cua truong Khoa hoc tu nhien. Vi thoi gian co han nen chua test duoc

该程序是用L-Z复杂度算法检测VF信号的算法，并用的MIT-BIH数据库中的数据加以实现的。(The program is used LZ complexity algorithm to detect VF signal algorithm, and use the MIT-BIH data in the database to be achieved.)

We prop ose d a simple relaxe d optimizatio n problem for finding the maxim um margin s ep­ ar ator when some of the examples may b e misclassified

用MATLAB写的小程序，希望感兴趣的朋友可以看下。。(Write small programs using MATLAB, interested friends can look. .)

Plot This curves Receiver Operating Characteristic (ROC) curve Detection Error Trade-off (DET) curve FAR vs FRR

通过并行压缩进行二维信号压缩，提出了一种利用并行压缩传感技术对二维信号进行压缩的新方案。根据这个原理，译码器的重新构造可以并行进行。通过对二维信号进行某些排列，可以确保所有列具有大致相同的密度级别，并且可以使用相同的测量矩阵进行采样。这样可以避免二维信号的矢量化，从而大大减小测量矩阵的尺寸。我们证明，如果排列良好，重建均方误差的上限会更紧。为了说明这一方案，我们将其应用于视频压缩并使用不同帧的排列有两种：参考帧的基于Z字形扫描的排列和非参考帧的基于块测试的排列。仿真结果表明，在相同的压缩比下，峰值信噪比比比在无置换情况下可提高3-7db左右。(we propose a new scheme to compress 2D signals using parallel compressed sensing. According to this seheme, the reeonstruction at the decoder can be performed in parallel. By performing certain permutation on a 2D signal, all columns are insured to have approximately the same density level and can be sampled using the same measurement matrix. In this way, vectorization of a 2D signal can be avoided, and thus the size of the measurement matrix can be dramatically reduced. We prove that with a good permutation, we can have a tighter upper bound on reconstruction mean square error. To illustrate this scheme, we apply it to video compression and use two kinds of permutations for different frames: the zigzag-scanbased permutation for reference frames and the block-test-based permutation for non-reference frames. Simulation results show that under the same compression ratio, the peak signal-to-noise ratio can be improved by approximately 3-7 dB compared to the case without permutation.)

程序实现雅克比.戴维逊的QR分解，希望有用到的！(Program to achieve Jacobi. Davidson QR decomposition, hope to be useful!)