aiacademy: 機器學習 SVM & 實作: ch05

SVM

• linear svm

• largrange multiplier and KKT condition

說實話 真的是不知道在共殺姣 XDDD

kernel

Popular kernels

• Linear kernel

• Polynomial kernel

• Gaussian (RBF) kernel

Summary

• Large margin: prevent overfitting

• Soft margin: make the margin become larger to prevent overfitting

• Kernel trick

  • Make the data linearly separable
  • Efficiently transform the input features into high (could be infinite) dimensional space

Regularized linear regression

Linear or Kernel ? SVM or Logistic Regression?

SVM Concept

Sklearn SVM SVC

sklearn SVM SVR

Summary