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Positive-semidefinite kernel

A feature map sends $x$ to a vector $\phi(x)$ in a vector space with an <inner product> so that $k(x,y)=\langle\phi(x),\phi(y)\rangle$.

= Feature function
{synonym}

Feature map

Gaussian kernel

Kernel method

Past exam of the mathematics course of the University of Cambridge / 2024 / iii / Paper 205 / 1 / b / Solution

Past exam of the mathematics course of the University of Cambridge / 2024 / iii / Paper 205 / 1 / d / Solution

codex/feature-function

Feature map

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Feature map

 Ancestors (5)

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