neural-nets.tex 1.8 KB

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  1. \subsection{Neural Net experiments}
  2. \begin{frame}{Experiments}
  3. \textbf{Preprocessing:} Scaling, shifting and linear interpolation\\
  4. \textbf{Features:} Coordinates of 80 points (4 strokes with 20 points each)\\
  5. \textbf{Learning:} MLP, 300 epochs, LR of 0.1, Momentum 0.1
  6. \begin{table}[h]
  7. \begin{tabular}{lrl}
  8. \toprule
  9. Topology & Error & Training time \\ \midrule
  10. 160:500:369 & 30.62 \% & \hphantom{0}9min 08s \\
  11. 160:500:500:369 & 27.73 \% & 11min 49s \\
  12. 160:500:500:500:369 & 34.79 \% & 14min 09s \\
  13. 160:500:500:500:500:369 & 33.61 \% & 14min 06s \\
  14. \bottomrule
  15. \end{tabular}
  16. \end{table}
  17. \end{frame}
  18. \begin{frame}[fragile]{Examples of confusable symbols}
  19. \begin{table}[ht]
  20. \centering
  21. \begin{tabular}{lc|lc}
  22. \textbf{\LaTeX}& \textbf{Rendered} & \textbf{\LaTeX}& \textbf{Rendered} \\\midrule
  23. \verb+\sum+ & $\sum$ & \verb+$\Sigma$+ & $\Sigma$\\
  24. \verb+\coprod+ & $\coprod$ & \verb+$\amalg$+ & $\amalg$\\
  25. \verb+\perp+ & $\perp$ & \verb+$\bot$+ & $\bot$\\
  26. \verb+\models+ & $\models$ & \verb+$\vDash$+ & $\vDash$\\
  27. \verb+\emptyset+ & $\emptyset$ & \verb+$\diameter$+ & $\diameter$\\
  28. ~ & ~ & \verb+$\o$+ & $\o$\\
  29. ~ & ~ & \verb+$\varnothing$+ & $\varnothing$\\
  30. \verb+\Delta+ & $\Delta$ & \verb+$\triangle$+ & $\triangle$\\
  31. \verb+\varepsilon+ & $\varepsilon$ & \verb+$\mathcal{E}$+ & $\mathcal{E}$\\
  32. \end{tabular}
  33. \end{table}
  34. When those confusions are not counted as errors, the current best system
  35. has an classification error rate of $12.7 \%$ (otherwise $22.2 \%$).
  36. \end{frame}