Kernel

$S_{nonfraud}$

γ

Degree

r

Accuracy

Precision

Financial recovery

Linear

10

n/a

n/a

n/a

0.976

0.058

0.996

RBF

0.1

0.05

n/a

n/a

0.937

0.024

0.997

Polynomial

0.5

0.01

2

0.1

0.938

0.024

0.997

Sigmoid

0.8

0.01

n/a

1e−5

0.738

0.006

0.997