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Table 2 Area under the ROC curve for void type block

From: Unsupervised learning approach to automation of hammering test using topological information

Void

Area under the ROC curve

30 mm depth

0.94

50 mm depth

0.81

75 mm depth

0.71

  1. Once again, our proposed method presented a high efficiency and was able to accurately spot the area directly above the void type defect