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

Table 1

The performance of IForest and IForest+KPCA.

Performance metric	IForest	IForest with KPCA
Accuracy	0.809	0.873
Precision	0.860	0.937
Recall	0.855	0.925
score	0.852	0.931