Table 3 Hyperparameters used for each model.

From: Key insights into recommended SMS spam detection datasets

Model

Hyperparameters

Decision Tree

max_depth = 5, 6, or 7, min_samples_split = 2, 3, or 4, min_samples_leaf = 2 or 3, criterion = gini, max_features = sqrt

Multinomial Naïve Bayes

alpha = 1, 2, or 5