TheInternetandcomputernetworksareexposedtoanincreasingnumberofsecuritythreats.Withnewtypesofattacksappearingcontinually,developingflexibleandadaptivesecurityorientedapproachesisaseverechallenge.Inthiscontext,anomaly-basednetworkintrusiondetectiontechniquesareavaluabletechnologytoprotectt