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43 lines
No EOL
1.7 KiB
TeX
43 lines
No EOL
1.7 KiB
TeX
\subsection{Write Math}
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\begin{frame}{write-math.com}
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\begin{itemize}
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\item a website where users can add labeled training data
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\item works with desktop computers and touch devices
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\item symbol recognition can be done by multiple classifiers
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\item users can contribute formulas
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\item users can vote for formulas
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\item user who wrote the formula can accept one formula
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\end{itemize}
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\end{frame}
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\framedgraphic{Classify}{../images/classify.png}
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\framedgraphic{Workflow}{../images/workflow.png}
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% \framedgraphic{User page}{../images/user-page.png}
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% \framedgraphic{Information about recordings}{../images/view.png}
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% \framedgraphic{Symbol page}{../images/symbol.png}
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% \framedgraphic{Training}{../images/train.png}
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\framedgraphic{Ranking}{../images/ranking.png}
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\begin{frame}[fragile]{Statistics}
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\begin{itemize}
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\item 127 users with at least 5 recordings
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\item 1109 symbols, but only 369 used for experiments
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\item $\num{235831}$ recordings (e.g. $\num{3486}$ times \verb+\int+)
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\end{itemize}
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\end{frame}
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\begin{frame}{First classification worker}
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\begin{itemize}
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\item preprocessing: Scale to fit into unit square while keeping the aspect
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ratio
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\item applies dynamic time warping
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\item compares a new recording with every recording
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in the database
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\item[$\Rightarrow$] Classification time is in $\mathcal{O}(\text{recordings})$,
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but we rather would like $\mathcal{O}(\text{symbols})$
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\item the current server / workflow can only handle about 4000 recordings
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\item[$\Rightarrow$] Another way to classify is necessary
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\end{itemize}
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\end{frame} |