Table 7 The misclassification rate and variance of motor imagery classification in “Dataset 2b”
Subjects | Spatial-frequency-sequential relationships | Spatial-frequency features | ||||||
|---|---|---|---|---|---|---|---|---|
ONHL(τ) | LSTM-RNN(a) | ONHL(τ) | GRU-RNN(b) | CNN(c) | SVM-RBF(d) | SVM-polynomial(e) | SVM-linear(f) | |
S1 | 39 | 22.61 ±4.63 | 31 | 20.24 ±4.29 | 30.66 ±5.96 | 35.94 ±6.46 | 32.5 ±5.27 | 33.44 ±5.65 |
S2 | 36 | 28.15 ±5.86 | 27 | 27.24 ±5.69 | 36.76 ±5.42 | 46.43 ±6.48 | 47.86 ±6.86 | 46.79 ±7.62 |
S3 | 44 | 27.87 ±4.53 | 35 | 26.85 ±4.62 | 38.61 ±5.27 | 45.94 ±7.52 | 44.69 ±7.40 | 45.62 ±7.65 |
S4 | 42 | 8.64 ±2.13 | 32 | 7.53 ±2.20 | 1.87 ±1.03 | 3.12 ±2.58 | 3.75 ±2.62 | 4.06 ±2.18 |
S5 | 36 | 14.67 ±3.46 | 28 | 13.75 ±3.35 | 14.58 ±3.28 | 19.37 ±4.25 | 16.25 ±3.86 | 16.25 ±3.97 |
S6 | 32 | 17.92 ±4.16 | 30 | 15.49 ±4.23 | 12.64 ±3.60 | 21.87 ±5.30 | 22.19 ±5.14 | 23.12 ±5.21 |
S7 | 33 | 14.53 ±3.59 | 39 | 13.35 ±3.46 | 10.06 ±2.84 | 22.81 ±4.72 | 22.50 ±4.41 | 22.81 ±4.23 |
S8 | 35 | 7.25 ±2.15 | 25 | 6.53 ±2.03 | 3.16 ±1.86 | 10.00 ±3.68 | 9.69 ±3.13 | 10.31 ±3.24 |
S9 | 38 | 24.64 ±4.62 | 28 | 24.31 ±4.72 | 30.66 ±5.13 | 17.19 ±3.42 | 16.56 ±3.35 | 17.19 ±3.41 |
AVG | - | 18.48 ±3.90 | - | 17.25 ±3.84 | 19.89 ±3.83 | 24.74 ±4.93 | 24.00 ±4.67 | 24.40 ±4.80 |
p-test | - | a vs. f | - | b vs. f | c vs. b | d vs. b | e vs. b | - |
p-value | - | p=0.08 | - | p <0.05∗ | p=0.28 | p <0.05∗ | p=0.06 | - |