An Efficient Cost-Sensitive Feature Selection Using Chaos Genetic Algorithm for Class Imbalance Problem

Table 5

Comparing the feature number and execution time (in seconds).

Feature selection algorithms	Feature number	Execution time (with KNN)	Execution time (with C4.5)
—	41	0.16	17.12
CFS	11	0.04	2.78
CASH	23	0.21	33.14
CSFSG	17	0.05	7.19