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Table 1 Mean performance of statistical features across all 11 wavelet bases tested

From: Automatic detection of anomalies in screening mammograms

  DDSM MIAS
Feature§ Sensitivity* (%) Specificity(%) Classification rate(%) Sensitivity (%) Specificity (%) Classification rate (%)
M 89.2 26.6 50.3 86.8 24.1 44.4
σ 94 27.6 52.8 87 27.7 46.9
S 90.8 29.4 52.7 91.9 20.6 43.6
K 92.8 23.7 49.8 93.5 16.8 41.6
M + σ 97.4 33.9 57.9 89.7 23.7 45
M + S 97.2 38.1 60.5 91.9 25.1 46.8
M + K 96.1 35.6 58.5 94 19.6 43.6
σ + S 95.6 29.1 54.3 93.2 23.1 45.8
σ + K 96.3 28.5 54.1 94.3 18 42.6
S + K 94.2 32.2 55.7 93.9 19.5 43.6
  1. §M - mean, σ- standard deviation, S - skewness, K - kurtosis.
  2. *Sensitivity is defined as TP/(TP + FN).
  3. †Specificity is defined as TN/(TN + FP).
  4. ‡Classification rate is defined as (TP + TN)/(TP + TN + FP + FN).