AmbiguityVis: Visualization of Ambiguity in Graph Layouts

This paper presents a visualization system for browsing node-link diagram visualizations in a way to highlight (and hence avoid) existing ambiguities in graph layouts.

Although the paper doesn’t use precisely the same language of our design process, consider, for example, Figure 2. In our design process, any graph transformation which would take the subgraph of subfigure “b” to the subgraph in subfigure “c” constitutes a confuser. The paper suggests enriching the display with additional visual encodings such that, even if the edge bundling produces the confuser, the extra display would preserve the difference.