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Table 2 Covariance functions

From: Estimation of diffusion coefficients from voltammetric signals by support vector and gaussian process regression

Type

Function

Linear

k(x,x′) = σ2(1 + 〈x,x′〉)

Squared exp.

k(x,x′) = σ2 exp(-∥x-x′∥2/2l2)