Kernel and neighborhood methods · MLD-0597
Kernel
A similarity function that, when positive semidefinite, can represent inner products in a feature space.
Original reference page · detailed expansion pending. Original definitions, examples, notes and citations are preserved below. New examples are illustrative, not benchmark results.
Original example
Use an RBF kernel for nonlinear classification.
Original caveat
Not every arbitrary similarity is a valid PSD kernel.
Context and aliases
Level: Intermediate. Stages: Theory · Training · Inference.
Tags: ML.
Aliases: None recorded.
Related concepts
Concepts linking here
Original references
- scikit-learn: nearest neighbors ↗ · Reference link
- scikit-learn: support vector machines ↗ · Reference link
- Original reference URL ↗