ID3决策树

用EM算法求解高斯混合模型并可视化，数据是男女生的身高分布，前提是初始化男女生身高各自的均值和方差和比例，然后由EM算法求解，男女生身高的均值方差，以拟合数据。(The EM algorithm is used to solve the Gauss mixture model and visualize. The data is the height distribution of male and female. The premise is to initialize the mean, variance and proportion of the male and female height, then the mean variance of the height of male and female is solved by the EM algorithm, so as to fit the data.)

层次分析法，简称AHP，是指将与决策总是有关的元素分解成目标、准则、方案等层次，在此基础之上进行定性和定量分析的决策方法。(It refers to the decision-making method that divides the elements that are always related to decision-making into objectives, criteria, schemes, etc. on the basis of which qualitative and quantitative analysis can be carried out)

说明：  该代码可以模拟特定尺寸超音速斜切喷管模拟，若修改其中尺寸参数，可以达到模拟任何超音速流动。(The code can simulate the supersonic oblique-cut nozzle with a specific size. If the size parameters are modified, any supersonic flow can be simulated.)

说明：  人脑神经网络和计算机神经网络的不同在于，人脑可以解决通用性和跨领域的问题，而计算机神经网络只能解专门的问题，所以哪怕阿尔法狗在围棋界孤独求败战胜了所有男人，但他也不能识别出站在他面前的两个女生谁更漂亮(The difference between human brain neural network and computer neural network is that human brain can solve universal and cross domain problems, while computer neural network can only solve specialized problems. Therefore, even if alpha dog defeats all men alone in go, he can not identify the two girls standing in front of him who is more beautiful)

说明：  对原始图像进行阈值分割，把金属图像分割出来，抠掉金属的图像(Threshold segmentation is applied to the original image, and the metal image is segmented to remove the metal image)

说明：  使用3Dunet进行医学图像分割，讲三维图像进行分割(Medical image segmentation using 3dunet)

这是对refinenet的轻量级实现，可以进行实时语义分割(Light-Weight RefineNet for Real-Time Semantic Segmentation)

迁移学习 领域适应性 机器学习 学习代码(Transfer learning Domain Adaptation Machine Learning Coding study Inductive Learning Transductive Learning)

一种关于图像阈值分割的算法，自己试过很好用。(An image threshold segmentation algorithm, I have tried it very well.)

说明：  用UNSW数据集进行入侵检测，运用各种组合模型，精确度能达到90%以上，运用比较流行的神经网络模型分别进行了测试(Intrusion detection using UNSW dataset)