Skip to main content
. 2026 Jun 23;9:1871346. doi: 10.3389/fdata.2026.1871346

Table 2.

Class distribution before and after class balancing for CSE-CIC-IDS2018.

Class Before balancing After-SMOTE-Tomek
Normal 1,169,625 141,653
BruteForce 33,274 33,272
DoS 57,151 57,150
Web_Attacks 650 20,000
Infiltration 31,500 23,169
Botnet 24,998 25,000
DDoS 110,403 80,000