Skip to main content

Table 3 Correct classification rates for nationality 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 42.1 39.6 37.5 42.4 35.8 36.4 37.2 39.2 39.4 43.5 38.7 40.3
f2 37.8 38.0 38.2 43.4 36.2 36.4 38.9 41.0 42.6 41.1 40. 37.5
f3 44.0 38.0 39.8 42.8 33.7 36.4 35.2 39.9 38.6 38.6 39.6 37.5
f4 37.1 39.6 37.5 47.7 36.2 34.6 34.7 37.4 37.8 41.1 38.3 44.4
f5 42.1 39.6 39.8 36.3 42.4 37.1 41.8 39.6 43.8 38.2 43.0 41.5
f6 42.5 44.2 42.1 39.7 42.0 44.1 43.9 41.0 45.5 47.2 44.8 43.2
f7 43.2 47.3 42.1 38.6 41.6 45.2 44.8 49.6 44.0 53.7 42.4 48.0
f8 29.3 35.1 28.6 42.8 28.0 33.1 30.1 37.4 30.1 39.0 32.7 35.5
f9 38.2 37.3 33.6 42.2 35.8 33.5 36.4 39.2 34.9 38.6 35.5 37.5
f10 39.4 40.9 38.2 42.2 32.1 36.0 36.4 40.7 36.6 41.1 40.4 36.3
f11 42.1 41.5 41.7 43.4 34.2 40.8 36.0 40.7 38.8 37.8 41.4 39.1
f12 44.8 42.3 44.0 43.4 35.8 41.9 37.2 43.2 40.8 38.6 42.6 37.9
f13 45.6 40.9 44.4 40.9 36.2 45.2 34.3 41.7 42.6 35.4 42.0 38.7
f14 44.4 40.5 43.6 41.4 37.5 40.8 36.4 41.7 40.4 32.1 42.2 39.9
f15 42.1 40.0 42.9 41.1 38.3 42.7 38.5 42.8 43.2 32.5 42.4 40.7
f16 40.2 39.6 43.2 42.2 38.7 40.4 37.2 42.8 42.0 32.9 42.2 38.7
f17 39.4 39.2 43.6 44.5 35.4 40.4 37.7 39.2 42.4 39.4 43.0 39.9
f18 41.3 40.9 36.3 43.7 37.0 34.6 38.1 42.1 39.0 41.1 41.8 38.7
f19 41.3 43.2 36.3 44.1 37.0 35.7 38.1 40.7 39.0 41.9 41.8 37.5
f20 43.2 42.1 37.8 44.7 35.4 40.4 39.8 43.2 42.4 42.3 43.8 40.3
f21 46.0 42.9 38.6 46.4 36.2 40.4 38.9 42.8 42.4 41.5 43.6 38.7
f22 47.1 42.7 40.2 44.3 37.0 40.1 40.2 43.5 43.4 41.5 44.6 39.1
f23 46.3 43.1 44.0 43.7 38.3 43.0 38.5 44.6 44.0 40.7 44.4 39.5
f24 46.0 43.6 44.8 42.4 38.3 44.5 38.9 45.7 44.2 39.0 44.6 37.1
f25 45.6 43.6 45.6 44.9 39.5 44.9 40.2 44.6 44.6 39.8 44.6 37.1
f26 45.2 41.9 43.6 44.3 39.5 43.0 40.6 45.7 44.6 39.8 45.0 37.9
f1 + f2 + f3 41.7 41.3 40.4 45.1 42.3 39.3 45.1 44.2 42.6 43.9 44.0 40.3
f4 +,…, + f7 43.5 47.7 40.8 46.2 47.2 44.5 44.7 45.7 44.5 51.6 41.3 46.0
f8 +,…, + f17 45.7 41.3 46.0 44.3 42.3 44.5 40.7 46.4 44.7 38.2 42.9 41.5
f18 +,…, + f26 46.8 44.4 47.1 45.1 44.0 43.8 39.0 45.3 44.3 41.9 43.1 37.1
f1 +,…, + f26 48.9 47.7 47.4 46.2 44.4 48.9 44.3 47.1 46.4 44.3 46.7 44.8