henduojiefangcheng

EM algorithm for k multidimensional Gaussian mixture estimation

2维的fdtd计算源程序，边界条件为pml(2-D FDTD calculation of the source, boundary conditions for the PML)

参数估计与假设检验案例分析与matlab实现，仿真运行，完整的材料(Parameter estimation and hypothesis testing case analysis and matlab implementation, simulation run)

用割平面法求解整数规划。先不考虑整数约束条件，求松弛问题的最优解，如果获得整数最优解，即为所求，运算停止．如果所得到最优解不满足整数约束条件，则在此非整数解的基础上增加新的约束条件重新求解．(By cutting plane method for solving integer programming. Not considered integer constraints, the optimal solution relaxation problem, if the integer obtained optimal solution is sought, and operation stops. If the optimal solution does not satisfy the integer constraints, then on the basis of this non-integer solutions adding new constraints on the re-solving.)

选择“BreastCancer”数据集，使用支持向量机(SVM)对其进行分类。作为对比，第一次对特征集直接进行支持向量机分类，第二次对特征集进行主成分分析法的特征提取后，再对特征提取后的特征集进行支持向量机分类。并且对比和分析了两次分类的结果。(The BreastCancer data set is selected and classified by Support Vector Machine (SVM). For comparison, the first time the feature set is classified directly by support vector machine, the second time the feature set is extracted by principal component analysis, and then the feature set is classified by support vector machine. The results of the two classifications are compared and analyzed.)

说明：  利用matlab实现的数字波束形成算法，适合初学者学习。(Implementation of Digital Beamforming Algorithms)

因子分析法主程序，输入数据x以及主成分个数，则可以得到因子分析法的结果(Main factor analysis, the input data x and number of principal components, you can get the results of factor analysis)

自己用的一个求MFCC参数的程序，绝对好用，带原始数据，可直接运行(A program and MFCC parameters, absolutely easy to use, with the original data, and can be run directly)

solar cell modelling

基于坐标变换的三相交流异步电机模型，采用maltab/simulink建立的模型，三相交流电压型输入。(Motor model based on coordinate transformation maltab/simulink established model, three-phase AC voltage input.)