Research Article

Chess Position Evaluation Using Radial Basis Function Neural Networks

Table 3

Aggregate presentation of indicators with mating evaluation filtering.

ScenarioMethodMAER2Training time (s)Nodes (fuzzy sets)
TestingValidationTestingValidation

1 (3 low-depth evaluation inputs)RBF0.760.760.500.52730438219 (25)
CNN0.94 (1.01 ± 0.06)0.93 (1.01 ± 0.06)0.31 (0.30 ± 0.01)0.32 (0.31 ± 0.01)3563
MLP0.75 (0.82 ± 0.04)0.75 (0.81 ± 0.04)0.46 (0.42 ± 0.02)0.52 (0.48 ± 0.03)642[20 10] (−)
MLP-bitmap inputs0.70 (0.78 ± 0.06)0.71 (0.79 ± 0.06)0.50 (0.47 ± 0.02)0.50 (0.48 ± 0.02)9480[20 10] (−)

2 (2 low-depth evaluation inputs)RBF0.830.840.430.451244838229 (21)
CNN0.98 (1.05 ± 0.07)0.98 (1.04 ± 0.07)0.25 (0.25 ± 0.007)0.26 (0.25 ± 0.008)3624
MLP0.93 (1.00 ± 0.06)0.93 (1.00 ± 0.06)0.36 (0.30 ± 0.04)0.38 (0.33 ± 0.03)623[20 10] (−)
MLP-bitmap inputs0.85 (1.04 ± 0.17)0.85 (1.04 ± 0.17)0.40 (0.35 ± 0.06)0.42 (0.37 ± 0.04)9342[20 10] (−)

3 (no low-depth evaluation inputs)RBF0.850.850.410.43574538238 (21)
CNN1.01 (1.06 ± 0.06)1.00 (1.06 ± 0.06)0.23 (0.20 ± 0.007)0.25 (0.24 ± 0.008)3902
MLP0.96 (1.05 ± 0.04)0.97 (1.04 ± 0.04)0.32 (0.26 ± 0.03)0.34 (0.30 ± 0.03)598[20 10] (−)
MLP-bitmap inputs0.94 (1.02 ± 0.06)0.95 (1.02 ± 0.06)0.35 (0.28 ± 0.05)0.35 (0.29 ± 0.04)9211[20 10] (−)

The table depicts the best performance in the respective dataset in terms of MAE along with the mean value and standard deviation in parenthesis wherever applicable. The best result in terms of MAE in each scenario is marked with bold text.