$Task-based Evaluation of 3D Radial Layouts for Centrality Visualization$

Anonymous

Keywords: 3D graph visualization, Centrality visualization, Layout evaluation

TL;DR: We propose improvements and a human-centered evaluation of previous 3D radial layouts

Abstract: $$In this paper we propose improvements to the 3D radial layouts that make it possible to visualize centrality measures of nodes in a graph. Our improvements mainly relate edge drawing and the evaluation of the 3D radial layouts. First, we projected the edges onto the visualization surfaces in order to reduce the nodes overlap. Secondly, we proposed a human-centered evaluation in order to compare the efficiency score, the time to complete tasks and the number of clicks of the 3D radial layouts to those of the 2D radial layouts. The results showed that even if the overall improvements in terms of time or errors are not statistically significant between the various visualization surfaces, the participants have a better feeling on the 3D and therefore the user experience is able to be improved in data visualization.$$