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Table 4 Classification error rates (%) at different concentrations using the Quadratic DA method.

From: Classification of root canal microorganisms using electronic-nose and discriminant analysis

Dataset (pre-processing & dimension reduction) Concentration Average error across different concentrations
  12 × 10 8
cfu/ml
12 × 10 5
cfu/ml
12 × 10 3
cfu/ml
12 × 10 1
cfu/ml
 
d1 & std 0.00 0.00 2.86 2.86 1.43
d1 & pca 0.00 2.86 0.00 5.71 2.14
fd1 & std 2.86 5.71 2.86 0.00 2.86
fd1 & pca 0.00 0.00 8.57 0.00 2.14
nfd1 & std 0.00 0.00 5.71 5.71 2.86
nfd1 & pca 0.00 0.00 2.86 2.86 1.43
Average for baseline value-1 ( R i o = R i min ) 2.14
d2 & std 2.86 11.43 8.57 11.43 8.57
d2 & pca 0.00 11.43 8.57 22.86 10.72
fd2 & std 0.00 0.00 17.14 14.29 7.86
fd2 & pca 2.86 2.86 2.86 2.86 2.86
nfd2 & std 5.71 2.86 2.86 2.86 3.57
nfd2 & pca 0.00 0.00 5.71 2.86 2.14
Average for baseline value-2 ( R i o = R i first ) 5.95
d3 & std 0.00 2.86 2.86 5.71 2.86
d3 & pca 0.00 0.00 2.86 11.43 3.57
fd3& std 0.00 2.86 5.71 5.71 3.57
fd3 & pca 0.00 0.00 0.00 8.57 2.14
nfd3 & std 2.86 0.00 8.57 2.86 3.57
nfd3 & pca 0.00 5.71 5.71 0.00 2.86
Average for baseline value-3 ( R i o = R i bp ) 3.10
Average error
across same
concentration
0.95 2.70 5.24 6.03