An Optimized Computational Framework for Isolation Forest

Table 3

The AUC results of the five methods on eight datasets. Values marked in bold are the best results.

Date sets	LOF	iForest	SCiForest	OIT	OIF
Breast	0.4940.132	0.4960.149	0.5130.128	0.5580.152	0.560±0.126
Ionosphere	0.8930.093	0.8550.083	0.916±0.071	0.8430.074	0.8740.069
Pima-diabetes	0.5870.051	0.6790.053	0.6310.036	0.6490.058	0.734±0.055
Breast-diagnostic	0.5250.086	0.7940.069	0.8530.053	0.6710.109	0.883±0.050
CreditCardDefault	0.4990.014	0.5920.017	0.5870.014	0.6190.017	0.653±0.013
PenDigits	0.6500.193	0.7960.088	0.8020.100	0.8650.128	0.938±0.035
UnionPay	0.4680.056	0.6450.052	0.4720.066	0.6010.060	0.716±0.057
Kddcup99	0.6160.110	0.989±0.006	0.9870.009	0.9620.039	0.9860.010