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Using eye tracking to investigate graph layout effects

conference contribution
posted on 2023-05-23, 08:42 authored by Huang, W

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.

History

Publication title

Proceedings of Asia-Pacific Symposium on Visualisation 2007

Editors

IEEE

Pagination

97-100

ISBN

1-4244-0809-1

Department/School

School of Information and Communication Technology

Publisher

IEEE

Place of publication

USA

Event title

Asia-Pacific Symposium on Visualisation 2007

Event Venue

Sydney, Australia

Date of Event (Start Date)

2007-02-05

Date of Event (End Date)

2007-02-07

Rights statement

Copyright 2007 IEEE

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the information and computing sciences

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