Prediction of Hydrocarbon Reservoirs Permeability Using Support Vector Machine

Table 1

Polynomial, normalized polynomial, and radial basis function (Gaussian) kernels [24].

Kernel function	Type of classifier
𝐾(𝑥𝑖,𝑥𝑗)=(𝑥^𝑇𝑖𝑥𝑗+1)^𝜌	Complete polynomial of degree 𝜌
𝐾(𝑥𝑖,𝑥𝑗)=(𝑥^𝑇𝑖𝑥𝑗+1)^𝜌/(𝑥^𝑇𝑖𝑥𝑗)−(𝑦^𝑇𝑖𝑦𝑗)	Normalized polynomial kernel of degree 𝜌
𝐾(𝑥𝑖,𝑥𝑗)=exp[‖𝑥𝑖−𝑥𝑗‖^2/2𝜎^2]	Gaussian (RBF) kernel with parameter 𝜎 which; controls the half-width of the curve fitting peak