Table 1. BCI Competition Spelling Accuracies.
R | eSVM | CNN-1 | MCNN-1 | SUP | OA-SUP | OFF-US | OFF-US-T | ON-US-T | OA-US-T ß | RE-OA-US-T | OA-US | |
A | 5 | 72 | 61 | 61 | 67 | 68 | 46.8 (4.0) | 69.0 (0.0) | 64.2 (0.9) | 66.5 (0.5) | 69.0 (0.0) | 9.0 (7.4) |
10 | 83 | 86 | 82 | 88 | 91 | 89.4 (1.1) | 91.0 (0.0) | 86.0 (0.0) | 87.0 (0.0) | 88.0 (0.0) | 62.4 (4.1) | |
15 | 97 | 97 | 97 | 96 | 95 | 95.8 (1.3) | 96.0 (0.0) | 94.0 (0.0) | 96.0 (0.0) | 96.0 (0.0) | 86.6 (1.6) | |
B | 5 | 75 | 79 | 77 | 84 | 84 | 76.3 (1.6) | 79.0 (0.0) | 75.0 (0.0) | 75.0 (0.0) | 79.0 (0.0) | 53.0 (2.1) |
10 | 91 | 91 | 92 | 93 | 93 | 92.1 (1.3) | 95.0 (0.0) | 91.0 (0.0) | 94.0 (0.0) | 95.0 (0.0) | 87.9 (0.6) | |
15 | 96 | 92 | 94 | 96 | 96 | 95.2 (0.6) | 95.0 (0.0) | 92.0 (0.0) | 94.0 (0.0) | 95.0 (0.0) | 87.3 (1.1) | |
C | 5 | - | - | - | - | - | 98.7 (1.7) | 96.8 (0.0) | 96.8 (0.0) | 96.8 (0.0) | 96.8 (0.0) | 56.5 (5.5) |
10 | - | - | - | - | - | 100.0 (0.0) | 100.0 (0.0) | 100.0 (0.0) | 100.0 (0.0) | 100.0 (0.0) | 83.5 (1.1) | |
15 | - | - | - | - | - | 100.0 (0.0) | 100.0 (0.0) | 100.0 (0.0) | 100.0 (0.0) | 100.0 (0.0) | 92.3 (1.7) |
Percentage of correctly predicted characters. The first column indicates the subject, the second column the amount of repetitions per character. The values in braces are the standard deviation. Subject A and B are datasets from BCI Competition III. Subject C originates from Competition II. We have omitted a direct comparison with related work on subject C because different methods are able to achieve 100% on all experiments.