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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