Table 1.

Class-wise precision and recall of the neural network classifier, as obtained by fivefold crossvalidation

ClassPrecisiontolerantRecalltolerantPrecisionstrictRecallstrictImages*
Band neutrophils 0.91 ± 0.02 0.91 ± 0.01 0.54 ± 0.03 0.65 ± 0.04 9 968 
Segmented neutrophils 0.95 ± 0.01 0.85 ± 0.03 0.92 ± 0.02 0.71 ± 0.05 29 424 
Lymphocytes 0.90 ± 0.03 0.72 ± 0.03 0.90 ± 0.03 0.70 ± 0.03 26 242 
Monocytes 0.57 ± 0.05 0.70 ± 0.03 0.57 ± 0.05 0.70 ± 0.03 4 040 
Eosinophils 0.85 ± 0.05 0.91 ± 0.03 0.85 ± 0.05 0.91 ± 0.03 5 883 
Basophils 0.14 ± 0.05 0.64 ± 0.07 0.14 ± 0.05 0.64 ± 0.07 441 
Metamyelocytes 0.68 ± 0.04 0.87 ± 0.03 0.30 ± 0.05 0.64 ± 0.08 3 055 
Myelocytes 0.78 ± 0.03 0.91 ± 0.01 0.52 ± 0.05 0.59 ± 0.06 6 557 
Promyelocytes 0.91 ± 0.02 0.89 ± 0.03 0.76 ± 0.05 0.72 ± 0.08 11 994 
Blasts 0.79 ± 0.03 0.69 ± 0.03 0.75 ± 0.03 0.65 ± 0.03 11 973 
Plasma cells 0.81 ± 0.06 0.84 ± 0.04 0.81 ± 0.06 0.84 ± 0.04 7 629 
Smudge cells 0.28 ± 0.09 0.90 ± 0.10 0.28 ± 0.09 0.90 ± 0.10 42 
Other cells 0.22 ± 0.06 0.84 ± 0.06 0.22 ± 0.06 0.84 ± 0.06 294 
Artefacts 0.82 ± 0.05 0.74 ± 0.06 0.82 ± 0.05 0.74 ± 0.06 19 630 
Not identifiable 0.27 ± 0.04 0.63 ± 0.04 0.27 ± 0.04 0.63 ± 0.04 3 538 
Proerythroblasts 0.69 ± 0.09 0.85 ± 0.04 0.57 ± 0.09 0.63 ± 0.13 2 740 
Erythroblasts 0.90 ± 0.01 0.83 ± 0.02 0.88 ± 0.01 0.82 ± 0.01 27 395 
Hairy cells 0.80 ± 0.03 0.88 ± 0.02 0.35 ± 0.08 0.80 ± 0.06 409 
Abnormal eosinophils 0.02 ± 0.03 0.20 ± 0.40 0.02 ± 0.03 0.20 ± 0.40 8 
Immature lymphocytes 0.35 ± 0.11 0.57 ± 0.13 0.08 ± 0.03 0.53 ± 0.15 65 
Faggot cells 0.17 ± 0.05 0.63 ± 0.27 0.17 ± 0.05 0.63 ± 0.27 47 
ClassPrecisiontolerantRecalltolerantPrecisionstrictRecallstrictImages*
Band neutrophils 0.91 ± 0.02 0.91 ± 0.01 0.54 ± 0.03 0.65 ± 0.04 9 968 
Segmented neutrophils 0.95 ± 0.01 0.85 ± 0.03 0.92 ± 0.02 0.71 ± 0.05 29 424 
Lymphocytes 0.90 ± 0.03 0.72 ± 0.03 0.90 ± 0.03 0.70 ± 0.03 26 242 
Monocytes 0.57 ± 0.05 0.70 ± 0.03 0.57 ± 0.05 0.70 ± 0.03 4 040 
Eosinophils 0.85 ± 0.05 0.91 ± 0.03 0.85 ± 0.05 0.91 ± 0.03 5 883 
Basophils 0.14 ± 0.05 0.64 ± 0.07 0.14 ± 0.05 0.64 ± 0.07 441 
Metamyelocytes 0.68 ± 0.04 0.87 ± 0.03 0.30 ± 0.05 0.64 ± 0.08 3 055 
Myelocytes 0.78 ± 0.03 0.91 ± 0.01 0.52 ± 0.05 0.59 ± 0.06 6 557 
Promyelocytes 0.91 ± 0.02 0.89 ± 0.03 0.76 ± 0.05 0.72 ± 0.08 11 994 
Blasts 0.79 ± 0.03 0.69 ± 0.03 0.75 ± 0.03 0.65 ± 0.03 11 973 
Plasma cells 0.81 ± 0.06 0.84 ± 0.04 0.81 ± 0.06 0.84 ± 0.04 7 629 
Smudge cells 0.28 ± 0.09 0.90 ± 0.10 0.28 ± 0.09 0.90 ± 0.10 42 
Other cells 0.22 ± 0.06 0.84 ± 0.06 0.22 ± 0.06 0.84 ± 0.06 294 
Artefacts 0.82 ± 0.05 0.74 ± 0.06 0.82 ± 0.05 0.74 ± 0.06 19 630 
Not identifiable 0.27 ± 0.04 0.63 ± 0.04 0.27 ± 0.04 0.63 ± 0.04 3 538 
Proerythroblasts 0.69 ± 0.09 0.85 ± 0.04 0.57 ± 0.09 0.63 ± 0.13 2 740 
Erythroblasts 0.90 ± 0.01 0.83 ± 0.02 0.88 ± 0.01 0.82 ± 0.01 27 395 
Hairy cells 0.80 ± 0.03 0.88 ± 0.02 0.35 ± 0.08 0.80 ± 0.06 409 
Abnormal eosinophils 0.02 ± 0.03 0.20 ± 0.40 0.02 ± 0.03 0.20 ± 0.40 8 
Immature lymphocytes 0.35 ± 0.11 0.57 ± 0.13 0.08 ± 0.03 0.53 ± 0.15 65 
Faggot cells 0.17 ± 0.05 0.63 ± 0.27 0.17 ± 0.05 0.63 ± 0.27 47 

Data are mean ± standard deviation. Results are shown for the tolerant evaluation, allowing for mix-ups between classes that are difficult to distinguish, and the strict evaluation.

*

Overall number of cell images contained in each class of the data set.

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