Table 4 Results for the EEG database (scenario 2)
From: Time–frequency based feature selection for discrimination of non-stationary biosignals
Original size of thet–f representation: 512×500=256000. Number of neighbors: 3 | |||||||
|---|---|---|---|---|---|---|---|
Methodology | ρ min | n rel | n =( n c × n r ) | Accuracy (%) | Sensitivity (%) | Specificity (%) | |
PCA with | NA | NA | 15=(3×5) | 94.00±3.65 | (ZO) | 94.50±4.38 | 95.67±4.17 |
Tiling [5] | (NF) | 98.50±2.42 | 95.67±3.17 | ||||
(S) | 84.00±10.75 | 99.00±1.29 | |||||
PLS with | NA | NA | 15=(3×5) | 93.60±3.37 | (ZO) | 94.00±4.59 | 95.67±4.17 |
Tiling [5] | (NF) | 98.50±2.42 | 95.33±2.81 | ||||
(S) | 83.00±10.59 | 98.75±1.32 | |||||
Vectorized | NA | NA | NA | 93.40±4.12 | (ZO) | 97.00±4.22 | 94.00±2.63 |
PCA [14] | (NF) | 93.50±4.12 | 97.00±3.31 | ||||
(S) | 86.00±16.47 | 98.50±2.11 | |||||
Vectorized | NA | NA | NA | 96.00±2.98 | (ZO) | 100.00±0.00 | 95.33±3.58 |
PLS [14] | (NF) | 95.50±4.97 | 98.00±2.81 | ||||
(S) | 89.00±11.01 | 100.00±0.00 | |||||
Algorithm 2 + | NA | NA | NA | 98.00±1.88 | (ZO) | 100.00±0.00 | 98.66±2.33 |
2D–PCA | (NF) | 99.00±2.10 | 98.00±2.33 | ||||
(no relevance) | (S) | 92.00±7.88 | 100.00±0.00 | ||||
Algorithm 2 + | NA | NA | NA | 98.20±1.13 | (ZO) | 100.00±0.00 | 98.33±2.35 |
2D–PLS | (NF) | 99.00±2.10 | 98.66±1.72 | ||||
(no relevance) | (S) | 93.00±4.83 | 100.00±0.00 | ||||
Method 1 | 50% | 128000 | 20 | 94.40±2.95 | (ZO) | 99.00±2.11 | 94.00±4.10 |
(NF) | 91.50±6.69 | 97.00±4.29 | |||||
(S) | 91.00±11.97 | 99.75±0.79 | |||||
Method 2 | 15% | 38400 | 25 | 94.80±3.29 | (ZO) | 95.00±4.71 | 95.00±4.23 |
(NF) | 95.00±3.33 | 97.33±2.63 | |||||
(S) | 94.00±8.43 | 99.25±1.21 | |||||
Method 3 | 15% | 38400 | 9 | 97.80±1.14 | (ZO) | 98.00±2.58 | 99.33±1.41 |
(NF) | 98.00±2.58 | 98.00±1.72 | |||||
(S) | 97.00±4.83 | 99.25±1.21 | |||||
Method 4 | 10% | 25600 | 13 | 98.20±1.99 | (ZO) | 98.50±2.42 | 99.00±2.25 |
(NF) | 98.50±3.37 | 98.00±1.72 | |||||
(S) | 97.00±4.83 | 100.00±0.00 | |||||
Method 5 | 50% | 128000 | 425=(17×25) | 98.80±1.03 | (ZO) | 100.00±0.00 | 99.00±1.61 |
(NF) | 99.00±2.11 | 99.33±1.49 | |||||
(S) | 96.00±5.16 | 99.75±0.79 | |||||
Method 6 | 45% | 115200 | 442=(17×26) | 98.40±1.26 | (ZO) | 100.00±0.00 | 99.33±1.41 |
(NF) | 99.00±2.11 | 98.33±2.36 | |||||
(S) | 94.00±6.99 | 99.75±0.79 | |||||
Method 7 | 45% | 115200 | 42=(3×14) | 98.60±0.97 | (ZO) | 100.00±0.00 | 99.00±1.61 |
(NF) | 98.00±2.58 | 99.33±1.41 | |||||
(S) | 97.00±4.83 | 99.50±1.05 | |||||
Method 8 | 40% | 102400 | 784=(28×28) | 98.80±1.03 | (ZO) | 100.00±0.00 | 99.33±1.41 |
(NF) | 99.50±1.58 | 98.67±1.72 | |||||
(S) | 95.00±5.27 | 100.00±0.00 | |||||