27 lines
1.4 KiB
TeX
27 lines
1.4 KiB
TeX
\subsection{Ranking}
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\label{ranks}
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\figref{results_ranks} shows the ranking of each visual \factor{Hand} rendering for the \level{Push} and \level{Grasp} tasks.
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Friedman tests indicated that both ranking had statistically significant differences (\pinf{0.001}).
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Pairwise Wilcoxon signed-rank tests with Holm-Bonferroni adjustment were then used on both ranking results (\secref{metrics}):
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\begin{itemize}
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\item \response{Push task ranking}: \level{Occlusion} was ranked lower than \level{Contour} (\p{0.005}), \level{Skeleton} (\p{0.02}), and \level{Mesh} (\p{0.03});
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\level{Tips} was ranked lower than \level{Skeleton} (\p{0.02}).
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This good ranking of the \level{Skeleton} rendering for the Push task is consistent with the Push trial results.
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\item \response{Grasp task ranking}: \level{Occlusion} was ranked lower than \level{Contour} (\p{0.001}), \level{Skeleton} (\p{0.001}), and \level{Mesh} (\p{0.007});
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No Hand was ranked lower than \level{Skeleton} (\p{0.04}).
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A complete visual hand rendering seemed to be preferred over no visual hand rendering when grasping.
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\end{itemize}
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\begin{subfigs}{results_ranks}{Boxplots of the ranking for each visual hand rendering.}[
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Lower is better.
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Pairwise Wilcoxon signed-rank tests with Holm-Bonferroni adjustment: ** is \pinf{0.01} and * is \pinf{0.05}.
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][
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\item Push task ranking.
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\item Grasp task ranking.
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]
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\subfig[0.4]{results/Ranks-Push}
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\subfig[0.4]{results/Ranks-Grasp}
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\end{subfigs}
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