Table 4.
K-means clustering accuracy and running time of SIDER2 dataset
| T | 5 | 10 | 20 | 30 | 40 | 50 |
|---|---|---|---|---|---|---|
| Purity**(k = 20) | 0.41 | 0.44 | 0.53 | 0.53 | 0.53 | 0.58 |
| Purity(k = 30) | 0.41 | 0.44 | 0.56 | 0.50 | 0.54 | 0.60 |
| Time (ms) | 43,378 | 45,233 | 48,252 | 49,278 | 50,493 | 51,443 |
| T | 60 | 70 | 80 | 90 | 100 | |
| Purity (k = 20) | 0.59 | 0.55 | 0.57 | 0.56 | 0.54 | |
| Purity(k = 30) | 0.59 | 0.57 | 0.57 | 0.56 | 0.56 | |
| Time (ms) | 52,526 | 52,577 | 54,298 | 54,468 | 54,608 | |
**Purity of each cluster is calculated as the ratio of correctly classified drugs in the total 996 drugs in the cluster. The ratios in the table represent the average purities of k clusters obtained for each topic modeling.