Research Article
Towards Enhancement of Performance of K-Means Clustering Using Nature-Inspired Optimization Algorithms
Table 7
Testing objective function fitness and CPU time consumption on IRIS.
| Objective function value | ā | Best | Worst | Average |
| K-means | 78.9451 | 152.3687 | 127.8941 | C-ACO | 139.3081 | 150.9815 | 144.79 | C-Firefly | 78.940 | 109.4036 | 89.88241 | C-Cuckoo | 78.940 | 78.940 | 78.940 | C-Bat | 78.940 | 81.2655 | 79.46626 |
| CPU time (second) | ā | Best | Worst | Average |
| K-means | 51.291414 | 51.673431 | 51.444755 | C-ACO | 440.7980 | 443.9105 | 443.0668 | C-Firefly | 142.899517 | 177.743484 | 167.2426438 | C-Cuckoo | 15.499098 | 15.798136 | 15.7319299 | C-Bat | 8.621 | 8.835 | 8.7549 |
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