Table 6 Average running time of the methods (Thresher, SCOD and the indices in NbClust with top performance) across correlation matrices (unit: seconds)
From: Thresher: determining the number of clusters while removing outliers
Rules | NbClust | |||||||
trcovw | tracew | ratkowsky | mcclain | ptbiserial | tau | sdindex | kl | |
96 var., 24 obj. | 0.09 | 0.09 | 0.116 | 0.029 | 0.029 | 0.077 | 0.291 | 0.275 |
24 var., 96 obj. | 0.025 | 0.025 | 0.055 | 0.039 | 0.165 | 1.780 | 0.113 | 0.109 |
Rules | NbClust | Thresher | SCOD | |||||
ccc | hartigan | scott | silhouette | CPT | TwiceMean | SCOD | ||
96 var., 24 obj. | 0.088 | 0.169 | 0.092 | 0.027 | 0.25 | 0.271 | 0.009 | |
24 var., 96 obj. | 0.025 | 0.075 | 0.025 | 0.071 | 0.419 | 0.530 | 0.057 | |