Hybrid Modified -Means with C4.5 for Intrusion Detection Systems in Multiagent Systems

Pseudocode 2

Pseudocode of the modified -means algorithm.

Input: Dataset

Output: Clusters, Centroids

() Set , = First instance

() For every instance   Dataset and Do

 () If , Then

 () ,

() Assign every instance   Dataset to the closest centroid to make clusters

() Calculate cluster centroids ,

() For every instance   Dataset Do

 () Reassign to closest cluster centroid; is moved from to

          If  , .

 () Recalculate centroids for clusters and .

() If cluster instances are stabilized then stop, Else go to Step ().