Skip to main content

Table 2 Comparison of prediction performance at the residue level on four datasets (YW923, YW150, PDB491 and PDB366) between the proposed RDPred method, the YW method (Yuan and Wang, 2008), and when applying different feature sets and test types (best results are bolded for each dataset and each test type).

From: Sequence based residue depth prediction using evolutionary information and predicted secondary structure

  

YW923

YW150

Test type

Method

PCC

MAE

MRE (%)

PCC

MAE

MRE (%)

3 CV

YW method

0.65

0.60

18.0

--

--

--

 

PSSMa

0.64

0.60 (0.049,1.533)

18.9 (2.4,43.1)

0.58

0.66 (0.057,1.591)

20.6 (2.7,45.7)

 

PSSM+PSa

0.66

0.59 (0.049,1.502)

18.7 (2.4,42.6)

0.61

0.65 (0.054,1.581)

20.4 (2.6,45.5)

 

All featuresa

0.68

0.58 ( 0.048,1.461)

18.5 (2.3,42.1)

0.62

0.64 (0.056,1.555)

20.4 (2.7,45.4)

 

RDPred b

0.67

0.56 (0.037,1.510)

17.0 (1.8,41.4)

0.63

0.61 (0.041,1.557)

18.1 (2.0,43.2)

10 CVc

PSSM+PSa

0.67

0.58 (0.048,0.496)

18.5 (2.3,42.3)

--

--

--

 

RDPred b

0.67

0.56 (0.036,1.501)

16.9 (1.8,41.1)

--

--

--

  

PDB491

PDB366

Test type

Method

PCC

MAE

MRE (%)

PCC

MAE

MRE (%)

3 CV

YW method

--

--

--

--

--

--

 

PSSMa

0.65

0.64 (0.054,1.644)

20.0 (2.6,44.8)

0.63

0.62 (0.053,1.560)

19.6 (2.6,44.0)

 

PSSM+PSa

0.66

0.64 (0.054,1.625)

20.0 (2.6,44.6)

0.63

0.61 (0.053,1.539)

19.6 (2.6,43.8)

 

All featuresa

0.68

0.62 (0.054,1.582)

19.7 (2.5,43.8)

0.65

0.60 (0.053,1.507)

19.4 (2.5,43.5)

 

RDPred b

0.66

0.61 (0.041,1.630)

18.2 (2.0,43.3)

0.64

0.58 (0.040,1.556)

17.7 (2.0,42.3)

10 CV

PSSM+PSa

0.66

0.63 (0.053, 1.620)

19.7 (2.5,44.1)

0.64

0.61 (0.053,1.535)

19.4 (2.5,43.6)

 

RDPred b

0.67

0.60 (0.040,1.631)

18.1 (2.0,43.1)

0.65

0.57 (0.039,1.546)

17.6 (1.9,42.2)

  1. aThe SVR parameters are ε = 0.001, γ = 0.02, and C = 1.5.
  2. bThe SVR parameters are ε = 0.001, γ = 0.06, and C = 0.5; 125 features were used.
  3. cDue to extensive computational cost, in the case of the 10-fold cross validation only the results for PSSM+PS and RDPred methods were reported. The results on the YW150 dataset were not reported since this dataset was only used to perform parameterization on the proposed method.
  4. The two values in the brackets are the 10th centile and the 90th centile of the absolute and relative errors.