Table 2 Set of parameters and corresponding ranges tested for each classifier within the grid search scheme

NB

Gaussian or Supervised Discrimination or Kernel

DT

Confidence ∈ [0.05,0.5]

SVM RBF

Complexity ∈ [10⁻¹, 10¹] and γ ∈ [10⁻², 10²]

SVM Poly

Complexity ∈ [10⁻¹, 10¹] and Degree ∈ {1, 2, 3}

kNN

#Neighbors ∈ [1, 11]

RF

#Iterations ∈ [5, 30]

LR

Ridge ∈ [10⁻⁹, 10⁻⁶]