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Table 5 Classification accuracy (Q3) for structurally ambivalent residues. Average accuracy as measured by Q3 of 3-class categorical prediction of residues that have a structural ambivalence equal to or exceeding an entropy of 0.0 (all residues), 0.3 and 0.5. "CV": average (standard error) of five randomized repeats of 10-fold cross-validation on the training set (set-174). "test": average error on the test dataset (set-286).

From: Prediction of protein continuum secondary structure with probabilistic models based on NMR solved structures

problem model entropy ≥ 0.0 entropy ≥ 0.3 entropy ≥ 0.5
   CV test CV test CV test
3-class PNN 76.4 (0.09) 77.0 55.5 (0.18) 50.3 50.2 (0.18) 49.0
  CPNN 77.3 (0.07) 77.8 55.7 (0.22) 50.6 50.4 (0.24) 49.0
  CCNN 77.2 (0.08) 77.8 55.4 (0.17) 51.5 50.2 (0.31) 50.0