id	keyword
aiti-13972	feature
aiti-13972	selection
aiti-13972	disease
aiti-13972	heart
aiti-13972	vol
aiti-13972	method
aiti-13972	performance
aiti-13972	feature selection
aiti-13972	accuracy
aiti-13972	optimization
aiti-13972	subset
aiti-13972	aco
aiti-13972	dataset