# Face Spoofing Detection with Stacking Ensembles in Work Time Registration System
## Appendix A
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Combination** & **Small** & **Spoofing** & **Large** & **CelebA** & **Rank** \\ \hline S,C,N,X,E,V (voting) & 85.10 \(\pm\) 4.20 & 90.16 \(\pm\) 3.92 & 91.56 \(\pm\) 1.62 & 96.60 \(\pm\) 0.38 & 134.75 \\ \hline B,S,E (stacking) & 88.51 \(\pm\) 5.15 & 92.64 \(\pm\) 3.40 & 91.04 \(\pm\) 0.70 & 92.00 \(\pm\) 1.32 & 135.5 \\ \hline C,X,E (voting) & 81.31 \(\pm\) 5.40 & 92.36 \(\pm\) 2.26 & 92.49 \(\pm\) 1.03 & 95.87 \(\pm\) 0.46 & 136.25 \\ \hline B,S,E,V (stacking) & 87.91 \(\pm\) 5.55 & 92.57 \(\pm\) 3.37 & 91.15 \(\pm\) 0.62 & 92.23 \(\pm\) 1.44 & 137.5 \\ \hline B,S,C,X,E (voting) & 83.93 \(\pm\) 4.93 & 88.23 \(\pm\) 3.36 & 93.58 \(\pm\) 0.94 & 95.72 \(\pm\) 0.81 & 138 \\ \hline N,X,E (voting) & 84.40 \(\pm\) 5.07 & 91.04 \(\pm\) 2.41 & 93.41 \(\pm\) 1.26 & 94.90 \(\pm\) 0.52 & 138.25 \\ \hline B,S,C,E,V (voting) & 85.38 \(\pm\) 4.50 & 88.87 \(\pm\) 3.63 & 92.03 \(\pm\) 1.22 & 95.59 \(\pm\) 0.58 & 138.5 \\ \hline C,N,X,E,V (voting) & 81.75 \(\pm\) 3.43 & 89.34 \(\pm\) 4.00 & 92.82 \(\pm\) 1.45 & 96.54 \(\pm\) 0.40 & 139.5 \\ \hline S,C,N,X,V (voting) & 81.75 \(\pm\) 3.70 & 86.88 \(\pm\) 4.74 & 92.91 \(\pm\) 1.01 & 97.07 \(\pm\) 0.37 & 140.75 \\ \hline B,S,C (voting) & 85.25 \(\pm\) 3.84 & 87.59 \(\pm\) 2.81 & 94.91 \(\pm\) 0.53 & 93.44 \(\pm\) 0.49 & 143 \\ \hline S,E,V (stacking) & 86.63 \(\pm\) 5.92 & 92.55 \(\pm\) 3.49 & 90.98 \(\pm\) 0.69 & 92.04 \(\pm\) 1.60 & 143 \\ \hline S,C,E,V (voting) & 83.93 \(\pm\) 4.62 & 91.95 \(\pm\) 2.74 & 90.20 \(\pm\) 1.62 & 95.71 \(\pm\) 0.37 & 144.75 \\ \hline S,N,X (voting) & 83.70 \(\pm\) 4.71 & 86.94 \(\pm\) 2.90 & 93.82 \(\pm\) 0.92 & 95.31 \(\pm\) 0.57 & 145.25 \\ \hline S,E (stacking) & 86.45 \(\pm\) 5.96 & 92.55 \(\pm\) 3.46 & 90.92 \(\pm\) 0.73 & 91.75 \(\pm\) 1.63 & 146.5 \\ \hline B,C,E (voting) & 85.34 \(\pm\) 5.11 & 92.44 \(\pm\) 3.29 & 87.01 \(\pm\) 12.98 & 95.20 \(\pm\) 0.67 & 148.5 \\ \hline S,N,E,V (voting) & 86.87 \(\pm\) 3.62 & 91.30 \(\pm\) 2.90 & 89.97 \(\pm\) 1.74 & 94.36 \(\pm\) 0.44 & 148.5 \\ \hline B,S,C,N,X,V (voting) & 80.70 \(\pm\) 4.85 & 82.72 \(\pm\) 6.67 & 94.33 \(\pm\) 0.91 & 96.26 \(\pm\) 0.65 & 148.75 \\ \hline C,E (voting) & 83.78 \(\pm\) 6.63 & 93.05 \(\pm\) 3.20 & 89.75 \(\pm\) 1.08 & 94.44 \(\pm\) 1.08 & 149.25 \\ \hline B,C,N,X (voting) & 79.01 \(\pm\) 5.16 & 81.14 \(\pm\) 4.19 & 97.39 \(\pm\) 0.34 & 94.70 \(\pm\) 2.28 & 149.75 \\ \hline N,E,V (voting) & 84.91 \(\pm\) 4.50 & 90.86 \(\pm\) 2.63 & 91.46 \(\pm\) 1.93 & 93.85 \(\pm\) 0.44 & 151.5 \\ \hline C,E,V (voting) & 81.10 \(\pm\) 4.70 & 91.72 \(\pm\) 2.65 & 90.56 \(\pm\) 1.40 & 95.58 \(\pm\) 0.38 & 151.75 \\ \hline S,C,X (voting) & 77.32 \(\pm\) 4.07 & 86.65 \(\pm\) 2.94 & 93.12 \(\pm\) 0.88 & 96.57 \(\pm\) 0.50 & 152.25 \\ \hline B,N,E (voting) & 87.55 \(\pm\) 4.27 & 91.28 \(\pm\) 3.06 & 88.32 \(\pm\) 14.03 & 93.50 \(\pm\) 0.79 & 155.25 \\ \hline B,C,N,V (voting) & 76.95 \(\pm\) 5.71 & 83.22 \(\pm\) 4.91 & 97.59 \(\pm\) 0.27 & 93.37 \(\pm\) 0.36 & 155.25 \\ \hline S,N,X,E,V (voting) & 84.35 \(\pm\) 4.39 & 87.84 \(\pm\) 4.16 & 90.98 \(\pm\) 1.60 & 94.96 \(\pm\) 0.53 & 156 \\ \hline B,C,N,X,E,V (voting) & 80.38 \(\pm\) 4.69 & 83.94 \(\pm\) 6.44 & 93.31 \(\pm\) 1.46 & 95.49 \(\pm\) 0.85 & 156.75 \\ \hline B,C,N,X,V (voting) & 74.90 \(\pm\) 5.26 & 75.22 \(\pm\) 9.75 & 96.07 \(\pm\) 0.55 & 95.30 \(\pm\) 0.99 & 157.5 \\ \hline B,S,X,V (stacking) & 84.54 \(\pm\) 3.96 & 87.20 \(\pm\) 2.82 & 92.04 \(\pm\) 0.82 & 93.25 \(\pm\) 0.97 & 158.5 \\ \hline B,C,X,E (voting) & 79.10 \(\pm\) 5.06 & 86.99 \(\pm\) 2.65 & 92.46 \(\pm\) 0.52 & 95.41 \(\pm\) 0.48 & 160.25 \\ \hline B,S,X (stacking) & 84.55 \(\pm\) 3.45 & 86.91 \(\pm\) 2.76 & 91.94 \(\pm\) 0.83 & 93.18 \(\pm\) 1.14 & 160.5 \\ \hline B,X,E (stacking) & 83.45 \(\pm\) 7.73 & 91.46 \(\pm\) 3.81 & 90.69 \(\pm\) 0.85 & 93.16 \(\pm\) 1.08 & 160.5 \\ \hline X,E,V (stacking) & 83.21 \(\pm\) 7.91 & 91.48 \(\pm\) 3.80 & 90.69 \(\pm\) 0.83 & 93.09 \(\pm\) 1.15 & 161.5 \\ \hline X,E (stacking) & 83.21 \(\pm\) 7.91 & 91.48 \(\pm\) 3.80 & 90.70 \(\pm\) 0.86 & 92.98 \(\pm\) 1.27 & 161.5 \\ \hline B,S,C,X (voting) &