Table 2.
Discretized features represented using fuzzy variables
| Features/unit | Range | Fuzzy variable |
|---|---|---|
| Age (A)/(years) | 1 ≤ A < 12 | Child |
| 12 ≤ A < 20 | Adolescence | |
| 20 ≤ A < 40 | Young | |
| 40 ≤ A < 60 | Middle | |
| 60 ≤ A < 70 | Senior | |
| A ≥ 70 | Old | |
| Season (S)/(month) | 1st Mar.–31st May | Summer |
| 1st June–31stAug | Monsoon | |
| 1st Sept.–31st Nov | Autumn | |
| 1st Dec.–End_Feb | Winter | |
| Location (L) with respect to sea level/(meter) | 0 < L ≤ 1500 | Normal_level |
| 1500 ≤ L < 2400 | High level | |
| 2400 ≤ L < 5000 | Very high level | |
| L ≥ 5000 | Extreme_level | |
| BMI/(kg/m2) | BMI < 16 | Severe_thinness |
| 16 ≤ BMI < 18.5 | Mild_thinness | |
| 18.5 ≤ BMI < 25 | Normal | |
| 25 ≤ BMI < 30 | Overweight | |
| BMI ≥ 30 | Obese | |
| Cold/(days) | 0 | None |
| 0 ≤ Cold < 3 | Sore throat | |
| 1 ≤ Cold < 3 | Nasal congestion | |
| 3 ≤ Cold < 5 | Runny nose | |
| 4 ≤ Cold < 6 | Sneezing | |
| Body ache (BA)/(days) | 0 ≤ BA < 1 | None |
| 1 ≤ BA < 3 | Acute | |
| 3 ≤ BA < 6 | Chronic | |
| Nausea (N)/(times) | 0 | None |
| 0 ≤ N < 2 | Mild | |
| 2 ≤ N < 4 | Acute | |
| 4 ≤ N < 6 | Severe | |
| Systolic (BPS)/diastolic (BPD)/(mmHG) | BPS < 90/BPD < 60 | Low |
| 90 ≤ BPS < 120/60 ≤ BPD < 80 | Normal | |
| 120 ≤ BPS < 140/80 ≤ BPD < 100 | High | |
| 140 ≤ BPS < 160/100 ≤ BPD < 110 | Stage 1_Hypertensive | |
| 160 ≤ BPS < 180/110 ≤ BPD < 120 | Stage 2_Hypertensive | |
| BPS ≥ 180/BPD ≥ 120 | Crisis_Hypertensive | |
| Pulse (PU)/(bpm) | PU < 60 | Low |
| 60 ≤ PU < 73 | Normal | |
| 73 ≤ PU < 83 | Average | |
| PU ≥ 83 | Poor | |
| SpO2 (SO)/(percentage) | SO < 85 | Severe_hypoxic |
| 85 ≤ SO < 90 | Hypoxic | |
| 90 ≤ SO < 95 | COPD | |
| SO ≥ 95 | Healthy | |
| Temperature (T)/(degree Fahrenheit) | T < 97 | Hypothermia |
| 97 ≤ T < 99.5 | Normal | |
| 99.5 ≤ T < 104 | Hyperthermia | |
| T ≥ 104 | Hyperpyrexia | |
| Breathlessness (BN)/(grades) | 0 | None |
| 0 ≤ BN < 1 | Mild | |
| 1 ≤ BN < 2 | Moderate | |
| 2 ≤ BN < 3 | Severe | |
| 3 ≤ BN < 4 | Very severe | |
| Headache(H)/(days) | 0 | None |
| 0 ≤ H < 2 | Low | |
| 2 ≤ H < 4 | Medium | |
| 4 ≤ H < 6 | Severe | |
| Abdominal pain(AP)/(days) | 0 | None |
| 0 ≤ AP < 2 | Mild | |
| 2 ≤ AP < 4 | Moderate | |
| 4 ≤ AP < 6 | Severe |