“…From Table 2, it is observed that, even though each filter uses different ranking techniques, some features are common across different filter methods. Using simple majority vote, features 4,29,34,12,39,3,5,6,30,33,38,25, and 23 (indicated in bold) appeared across more than three filter methods; this shows the level of importance these features are to the output class (see Table 3). Table 3 shows the 13 selected features out of the onethird split of the most important features of NSL-KDD dataset using EMFFS method.…”