Huang, W, Using eye tracking to investigate graph layout effects, Proceedings of Asia-Pacific Symposium on Visualisation 2007, 5-7 February 2007, Sydney, Australia, pp. 97-100. ISBN 1-4244-0809-1 (2007) [Refereed Conference Paper]
Copyright 2007 IEEE
Official URL: http://dx.doi.org/10.1109/APVIS.2007.329282
Graphs are typically visualized as node-link diagrams. Although there is a fair amount of research focusing on crossing minimization to improve readability, little attention has been paid on how to handle crossings when they are an essential part of the final visualizations. This requires us to understand how people read graphs and how crossings affect reading performance.
As an initial step to this end, a preliminary eye tracking experiment was conducted. The specific purpose of this experiment was to test the effects of crossing angles and geometric-path tendency on eye movements and performance. Sixteen subjects performed both path search and node locating tasks with six drawings. The results showed that small angles can slow down and trigger extra eye movements, causing delays for path search tasks, whereas crossings have little impact on node locating tasks. Geometric-path tendency indicates that a path between two nodes can become harder to follow when many branches of the path go toward the target node. The insights obtained are discussed with a view to further confirmation in future work.
|Item Type:||Refereed Conference Paper|
|Keywords:||eye tracking, edge crossing, geometric path, evaluation, graph drawing|
|Research Division:||Information and Computing Sciences|
|Research Group:||Information Systems|
|Research Field:||Computer-Human Interaction|
|Objective Division:||Expanding Knowledge|
|Objective Group:||Expanding Knowledge|
|Objective Field:||Expanding Knowledge in the Information and Computing Sciences|
|Author:||Huang, W (Dr Tony Huang)|
|Deposited By:||Computing and Information Systems|
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