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Table 5 The MAE and Q30 using six and seven clusters with EM clustering.

From: Prediction of backbone dihedral angles and protein secondary structure using support vector machines

CB513

 

Ï• angle

ψ angle

No. clusters

6

7

6

7

MAE (°)

25.8

25.1

38.5

38.5

MAE H (°)

12.2

11.3

22.3

19.7

MAE E (°)

24.1

25.4

30.7

33.7

MAE C (°)

38.4

36.9

56.7

57.3

Q30 (%)

73.4

75.6

71.3

70.8

QH30 (%)

90.4

91.9

88.0

89.5

QE30 (%)

72.9

72.2

78.3

76.2

QC30 (%)

59.0

63.3

53.0

51.8

  1. The mean absolute error (MAE) and the percentage of predicted dihedral angles within 30° of the real value (Q30) for both backbone dihedral angles ϕ and ψ after two iterations, using six and seven clusters with EM clustering.