The Optimized Anomaly Detection Models Based on an Approach of Dealing with Imbalanced Dataset for Credit Card Fraud Detection

Algorithm 1

iForest() [5]

Inputs: : input data, : number of trees, : subsampling size

Output: a set of iTrees

1: Initialize Forest

2:set height limit

3: for to t do

4: 

5: 

6: end for

7: returnForest