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Table 3 The execution time of two methods based on different datasets (unit: s)

From: A quantitative discriminant method of elbow point for the optimal number of clusters in clustering algorithm

Dataset

Execution time of Silhouette

Execution time of proposed method

Dataset1

0.974

0.408

Dataset2

1.518

0.950

Dataset3

1.361

0.705

Dataset4

0.327

0.308

Dataset5

0.348

0.318