AI engineering glossary · Classical ML algorithms
What is polynomial kernel?
Polynomial kernel: A kernel of the form (x . z + c)^d that implicitly considers all feature combinations up to degree d. It lets a margin classifier learn curved boundaries built from products of features.
Polynomial kernel: an example
A degree-2 kernel lets an SVM separate points inside a circle from those outside using products such as x1*x2 and x1^2.
Related terms
More Classical ML algorithms terms
- Polynomial regression
- Principal component
- Principal component analysis
- Quadratic discriminant analysis
- Random forest
- RBF kernel
- Regression tree
- Residual
Where you learn it
Polynomial kernel is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.