Kernel Method

#Computers #Math

Topics

• Polynomial Kernel
• Gaussian Kernel
• Mercer Theorem

$\displaystyle k(x_{i},x_{j})=\phi(x_{i})^{^{\top}}\phi(x_{j})$

• Is a way of efficiently computing the dot product between our transformed vectors without explicitly computing $\displaystyle \phi$, or our Non-linear Basis Function