| Researcher | Technique used | Purpose |
| 1. Divya et al. [22] | Weighted SV Regression | To provide better healthcare services by continuously monitoring patients. |
| 2. Xie et al. [23] | Regression decision tree algorithm | To study number of hospitalization days. |
| 3. Alapont et al. [24] | Linear regression | For effective utilization of hospital resources. |