Towards Effective Network Intrusion Detection: A Hybrid Model Integrating Gini Index and GBDT with PSO

Algorithm 1

GBDT algorithm.

Require:

 Training set:; number of iterations: m

 Loss function: ; learning rate: ν

Ensure: The predict model:

1. ;

2.

3.   

4.   Train a new tree according to

5.   

6.   ;

7. end for

8. return