Harsimran kaur
Communication through network should be safe and reliable with low maintenance cost. There is a process that used to detection activity of network that process is known as Network Intrusion Detection System (NIDS). IDS provide protection from attacker and detect activity. Modifications are applied on IDS time to time to make its performance better.There are someintrusion detection system approaches which we will discuss in this paper, like Bee Colony Optimization Algorithm (BCO), Ant Colony Algorithm (ACO) and Genetic Algorithm (GA). Main objective of this paper is to provide comparative study on these algorithms in data mining.