Displaying User Behavior in the Collaborative Graph Visualization System OnGraX

Björn Zimmer, Andreas Kerren

Research output: Chapter in Book/Report/Conference proceedingsConference contributionpeer-review

2 Citations (Scopus)


The visual analysis of complex networks is a challenging task in many fields, such as systems biology or social sciences. Often, various domain experts work together to improve the analysis time or the quality of the analysis results. Collaborative visualization tools can facilitate the analysis process in such situations. We propose a new web-based visualization environment which supports distributed, synchronous and asynchronous collaboration. In addition to standard collaboration features like event tracking or synchronizing, our client/server-based system provides a rich set of visualization and interaction techniques for better navigation and overview of the input network. Changes made by specific analysts or even just visited network elements are highlighted on demand by heat maps. They enable us to visualize user behavior data without affecting the original graph visualization. We evaluate the usability of the heat map approach against two alternatives in a user experiment.

Original languageEnglish
Title of host publicationGraph Drawing and Network Visualization - 23rd International Symposium, GD 2015, Revised Selected Papers
EditorsEmilio Di Giacomo, Anna Lubiw
Number of pages13
ISBN (Print)9783319272603
Publication statusPublished - 2015
Event23rd International Symposium on Graph Drawing & Network Visualization - Los Angeles, United States
Duration: 24 Sept 201526 Sept 2015

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Conference23rd International Symposium on Graph Drawing & Network Visualization
Country/TerritoryUnited States
CityLos Angeles
Internet address


  • Information visualization
  • graph drawing
  • network exploration
  • interaction
  • HCI
  • CSCW
  • biological networks
  • heat maps
  • Interaction
  • Network exploration
  • Graph drawing
  • Biological networks
  • Heat maps


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