“…Secondly, the performance of PSOPRO is compared with the previous work applied on PROAFTN [1,2,3]. Finally, the efficiency of PSOPRO is evaluated against six machine learning classifiers, chosen from different machine learning perspectives including: Logical/Symbolic techniques such as Decision Tree (C4.5 [38]), Statistical learning algorithms (e.g., Naive Bayes (NB [18])), Support Vector Machine (SVM [13]), Perceptron-based techniques (e.g., Neural Networks (NN) [15]), Instance-based learning (e.g., k-nearest neighbor (k-nn) [46]), and the rule-based classifiers such as PART [21,51].…”