## 3 Results
### Accuracy and F1-Score of Self-Acquired Dataset
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multirow{3}{*}{**Subject**} & \multicolumn{6}{c}{**LH-RH**} \\ \cline{2-9}  & \multicolumn{2}{c}{**FBCSP**} & \multicolumn{2}{c}{**DFBCSP–Fisher**} & \multicolumn{2}{c}{**DFBCSP–mRmR**} & \multicolumn{2}{c}{**DFBCSP–FmRmR**} \\ \cline{2-9}  & **Acc** & **F1** & **Acc** & **F1** & **Acc** & **F1** & **Acc** & **F1** \\ \hline
01 & 92.37 & 0.92 & 95.13 & 0.95 & 95.76 & 0.96 & 95.97 & 0.96 \\
02 & 80.86 & 0.81 & 79.23 & 0.79 & 81.06 & 0.81 & 81.06 & 0.81 \\
03 & 49.3 & 0.49 & 52.96 & 0.55 & 54.93 & 0.58 & 53.52 & 0.56 \\
04 & 78.36 & 0.78 & 78.99 & 0.79 & 77.31 & 0.77 & 76.26 & 0.77 \\
05 & 71.56 & 0.69 & 73.89 & 0.71 & 76.92 & 0.75 & 73.19 & 0.69 \\
06 & 67.19 & 0.66 & 65.63 & 0.66 & 70.31 & 0.7 & 64.58 & 0.65 \\
07 & 69.3 & 0.69 & 73.81 & 0.75 & 74.72 & 0.76 & 76.3 & 0.77 \\
08 & 70.7 & 0.71 & 71.34 & 0.71 & 72.19 & 0.72 & 64.97 & 0.65 \\
09 & 44.94 & 0.44 & 49.58 & 0.51 & 45.78 & 0.45 & 47.26 & 0.45 \\
10 & 69.23 & 0.69 & 69.23 & 0.7 & 61.92 & 0.61 & 68.85 & 0.7 \\
11 & 96.99 & 0.97 & 97.19 & 0.97 & 96.99 & 0.97 & 96.79 & 0.97 \\
12 & 68.01 & 0.68 & 68.75 & 0.69 & 68.01 & 0.69 & 70.59 & 0.7 \\
13 & 89.46 & 0.89 & 89.89 & 0.9 & 90.75 & 0.91 & 90.54 & 0.91 \\
14 & 72.71 & 0.73 & 75.05 & 0.75 & 74.63 & 0.75 & 70.58 & 0.71 \\
15 & 61.01 & 0.61 & 53.96 & 0.54 & 58.37 & 0.59 & 54.19 & 0.55 \\
16 & 81.69 & 0.82 & 84.98 & 0.85 & 84.16 & 0.84 & 81.48 & 0.81 \\ Mean \(\pm\) SD & 72.73 \(\pm\) 14.08 & 0.72 \(\pm\) 0.14 & 73.73 \(\pm\) 14.09 & 0.74 \(\pm\) 0.14 & 73.99 \(\pm\) 14.28 & 0.74 \(\pm\) 0.14 & 72.88 \(\pm\) 14.42 & 0.73 \(\pm\) 0.14 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Accuracy and F1-score of four methods on the author’s dataset for “Left hand vs. Right hand” pair. \begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multirow{3}{*}{**Subject**} & \multicolumn{6}{c}{**LH-RH**} \\ \cline{2-9}  & \multicolumn{2}{c}{**FBCSP**} & \multicolumn{2}{c}{**DFBCSP–Fisher**} & \multicolumn{2}{c}{**DFBCSP–mRmR**} & \multicolumn{2}{c}{**DFBCSP–FmRmR**} \\ \cline{2-9}  & **Acc** & **F1** & **Acc** & **F1** & **Acc** & **F1** & **Acc** & **F1** \\ \hline
01 & 87.21 & 0.87 & 83.8 & 0.84 & 86.57 & 0.86 & 85.07 & 0.85 \\
02 & 85.43 & 0.86 & 80.36 & 0.81 & 87.45 & 0.88 & 83.4 & 0.84 \\
03 & 49.72 & 0.49 & 49.72 & 0.46 & 50.28 & 0.46 & 49.44 & 0.47 \\
04 & 69.83 & 0.7 & 71.28 & 0.72 & 72.52 & 0.72 & 70.66 & 0.71 \\
05 & 76.36 & 0.76 & 73.85 & 0.73 & 78.45 & 0.78 & 77.2 & 0.77 \\
06 & 82.64 & 0.82 & 87.05 & 0.87 & 86.79 & 0.87 & 85.49 & 0.86 \\
07 & 67.82 & 0.68 & 67.82 & 0.68 & 67.59 & 0.67 & 67.59 & 0.69 \\
08 & 93.51 & 0.93 & 91.42 & 0.92 & 93.51 & 0.94 & 88.91 & 0.89 \\
09 & 51.27 & 0.5 & 45.99 & 0.47 & 48.95 & 0.49 & 47.89 & 0.47 \\
10 & 67.18 & 0.67 & 66.41 & 0.64 & 69.5 & 0.7 & 64.86 & 0.64 \\
11 & 92.38 & 0.92 & 89.78 & 0.9 & 88.78 & 0.89 & 86.97 & 0.87 \\
12 & 74.16 & 0.74 & 81.65 & 0.82 & 80.52 & 0.81 & 78.28 & 0.78 \\
13 & 99.79 & 1 & 98.94 & 0.99 & 98.72 & 0.99 & 99.79 & 1 \\
14 & 72.86 & 0.73 & 75.85 & 0.76 & 71.58 & 0.71 & 70.94 & 0.71 \\
15 & 65.39 & 0.66 & 65.17 & 0.66 & 62.47 & 0.64 & 59.78 & 0.62 \\
16 & 89.53 & 0.9 & 91.79 & 0.92 & 90.76 & 0.91 & 84.19 & 0.85 \\ Mean \(\pm\) SD & 76.57 \(\pm\) 14.58 & 0.76 \(\pm\) 0.15 & 76.31 \(\pm\) 14.9 & 0.76 \(\pm\) 0.15 & 77.15 \(\pm\) 14.81 & 0.77 \(\pm\) 0.15 & 75.03 \(\pm\) 14.48 & 0.75 \(\pm\) 0.15 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Accuracy and F1-score of four methods on the author’s dataset for “Right hand vs. Feet” pair. comparison (72 trials compared to 50 trials). That is also why we chose only one session in the BCI competition dataset (Figure 8). To test our hypothesis of FBCSP performance affected by the amount of data, the evaluation on one subject is broken down to each measurement (Figure 8). Three pairs and four models are also evaluated and the maximum number of measurements for each subject is five. The last column is the data for all measurements.