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- K means algorithm is performed with different initial centroids in order to get the best clustering. - The total cost is calculated by summing the distance of each point to its cluster centre and then summing over all the clusters.Based on the minimum overall cost achieved during each iteration of iterKMeans the pixel assignment to their respective clusters are made and final compressed image is obtained. This algorithm will run slower as the number of clusters , size of the image and number of iterations increase.

The Support Ve ct or Machi ne So fa r we have used a reference as sumpt ion tha t there exists a linear classifier that has a larg e ge ometric margin, i.e., whose decision b oundar y is we ll separa ted from all the training images (e xamples). Such a larg e margin classifier seems like one we would like to use. C an’t we find it more directly? Yes, we can. The clas sifier is known as the Support Ve ctor M achine or SVM for short.

一个模拟退火matlab程序，由m文件构成的工具箱，方便大家学习。(a simulated annealing procedures Matlab, m documents constitute the toolkit to facilitate learning.)

matlab coding about up and down sampling(up and down sampling)

Ucsd编写的matlab的GARCH模型分析与预测。包括两个安装包和安装说明（各种matlab版本都有），很详细。主要是好多网上其他无法运行，这个步骤我刚刚试试过，可以运行，(UCSD matlab prepared the GARCH model analysis and forecast. Includes two installation package and installation instructions (there are a variety of matlab version), in great detail. Is mainly a lot of other can not run the Internet, the steps I have just had a try, you can run,)

LEACH (Low-Energy Adaptive Clustering Hierarchy)

数字滤波，卷积实现，狄利克雷函数波形，hamel 低通滤波仿真(Digital filtering, convolution, Dirichlet function waveform, hamel low-pass filter simulation)

继续上传基于稳态kalman滤波器事例讲解，这里可以不需要考虑观测系统中的噪声。(to upload based on steady-state Kalman filter on the case, it need not consider here Observing System of noise.)

CONTENT BASED IMAGE RETRIVAL USING PIRAMIDAL STRUCTURE WAVELET TRANS FORM

带通采样定理的验证以及在无线电全数字中频直扩接收机的应用 (Verify bandpass sampling theorem)