A Decisive Metaheuristic Attribute Selector Enabled Combined Unsupervised-Supervised Model for Chronic Disease Risk Assessment

Table 4

Heart disease dataset details [1].

Name of attribute	Description	Domain range
Age	Age	1–100 years old
Sex	Person’s gender	1 = male. 0 = female
Cp	Uneasiness in chest	General angina/nonanginal pain/asymptomatic/atypical angina/
Trestbps	Blood pressure at rest	Measured in mm Hg after admitted to medical centre
Chol	Serum cholesterol level	Measured in mg/dl
Restecg	Electrocardiogram outcome at rest time	Values of 0, 1, or 2
Oldpeak	Exercise-induced ST depression prior to rest	3.05–3.81
Exang	Exercise-induced angina	1 = yes; 0 = no
Smoke	Smoker or not	Value: 1 = yes; 0 = no
Slope	ST segment peak exercise slope	1: upsloping; 2: flat; 3: downsloping
Ca	Major vessel count	0–3
Thal	Maximum heart rate achieved	3 = normal; 6 = fixed defect; and 7 = reversible defect