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Table 1 Correct classification rates for gender detection using random forests (RF) and kernel discriminant analysis (KDA)

From: Automatic prediction of age, gender, and nationality in offline handwriting

  Arabic English Both
  Same text (%) Different text (%) Same text (%) Different text (%) Same text (%) Different text (%)
Feature RF KDA RF KDA RF KDA RF KDA RF KDA RF KDA
f1 59.4 65.5 62.1 62.9 62.0 64.1 63.3 62.9 63.3 64.7 63.0 59.2
f2 68.3 63.9 66.9 63.1 63.4 62.8 69.2 62.2 64.9 68.5 67.5 60.6
f3 58.1 59.9 62.1 60.6 62.7 58.3 63.0 54.3 61.3 60.2 61.1 59.9
f4 53.0 60.6 54.8 57.1 64.1 53.5 59.2 53.3 57.8 61.6 56.1 62.7
f5 68.9 64.8 65.2 65.3 65.5 62.4 66.8 65.7 66.6 69.2 67.0 64.4
f6 67.0 68.6 68.6 66.1 67.3 69.3 71.6 70.2 66.9 68.2 70.3 68.0
f7 65.7 70.0 68.3 71.8 68.7 69.3 69.9 73.7 66.3 74.1 69.3 73.6
f8 57.1 58.9 54.8 59.1 52.8 57.2 58.5 54.9 54.6 58.5 56.3 60.2
f9 55.2 58.2 56.6 57.4 59.9 57.2 60.6 54.9 57.8 57.8 57.5 59.9
f10 55.9 58.7 56.6 61.9 57.8 57.2 55.7 60.0 56.3 58.8 54.4 59.5
f11 58.4 61.5 59.7 58.1 59.9 61.7 56.8 60.6 57.8 61.6 58.7 56.0
f12 63.8 61.5 62.8 62.4 64.1 58.6 59.5 62.9 62.6 63.0 60.8 59.5
f13 64.4 62.0 64.5 62.8 63.7 63.5 63.0 60.3 63.9 62.3 63.0 60.9
f14 63.8 63.6 65.2 60.8 64.4 60.0 62.3 61.3 63.3 63.3 64.9 62.0
f15 64.4 63.6 66.9 62.9 65.1 66.2 61.6 62.5 65.3 59.2 66.2 67.3
f16 65.1 63.0 69.3 63.8 62.7 63.8 64.7 61.3 63.6 60.6 67.7 62.3
f17 66.7 61.8 68.6 59.4 61.6 66.2 64.4 61.3 62.6 57.8 67.4 60.2
f18 56.5 59.1 58.6 59.6 61.3 58.3 60.9 56.8 58.1 59.2 63.2 62.7
f19 56.5 61.8 58.3 62.3 60.6 55.5 59.5 61.9 57.9 65.1 60.3 61.6
f20 60.3 64.1 60.3 63.8 58.8 59.7 60.9 64.8 60.1 67.5 60.3 60.6
f21 62.5 64.8 62.4 64.1 62.7 62.4 61.6 63.2 61.3 67.5 63.0 62.3
f22 65.7 65.3 63.5 63.6 62.7 61.7 61.9 63.2 64.4 65.4 63.6 64.1
f23 67.9 63.7 63.5 66.1 67.6 62.1 63.0 65.4 66.4 63.3 64.1 64.1
f24 67.9 64.4 66.2 65.9 70.8 63.1 64.4 64.1 68.8 63.7 65.5 65.9
f25 68.3 66.5 65.2 66.8 69.7 64.8 64.7 65.4 68.3 66.1 66.3 65.1
f26 68.3 66.8 67.6 66.4 69.7 66.9 65.7 68.6 69.3 64.7 66.7 64.1
f1 + f2 + f3 65.4 68.6 66.6 69.5 64.8 66.6 74.7 68.3 62.8 72.0 69.1 64.1
f4 +,…, + f7 67.3 68.9 68.6 70.1 69.0 69.0 70.2 70.8 64.8 70.2 69.8 69.0
f8 +,…, + f17 67.6 65.8 67.6 63.6 66.2 64.5 63.7 63.8 66.9 63.7 67.7 66.9
f18 +,…, + f26 67.3 67.2 64.8 66.8 71.1 64.5 64.0 66.4 68.8 66.8 66.1 65.1
f1 +,…, + f26 71.1 68.4 69.0 71.6 69.7 68.6 68.2 66.4 69.8 72.3 68.7 70.8