Who, Where, When and with Whom? Evaluation of Group Meeting Visualizations

  • Simone Kriglstein
  • Johanna Haider
  • Günter Wallner
  • Margit Pohl
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9781)


Visualizing time-dependent and location-based data is a challenging problem but highly relevant for areas like intelligence analysis, traffic control, or social network analysis. In this context, we address the problem of visualizing meetings between persons, groups of persons, vehicles, or other entities. However, the temporal dimension inherent in such data makes traditional map representations less well suited for this kind of problem as they easily become cluttered. To overcome this issue we developed a modified map representation and three alternative representations (two matrix-based visualizations and one based on Gantt charts). An empirical evaluation comparing these four visualizations and assessing correctness, recognition rates of groups, and subjective preference indicates that the alternative visualizations perform significantly better than the map-based representation when meetings need to be identified. In addition, we identify specific strengths and weaknesses of the investigated visualizations and propose design considerations.


Information visualization Map Matrix Gantt charts 



The research leading to these results in the VALCRI project has received funding from the European Union 7th Framework Programme (FP7/2007-2013) under grant agreement no FP7-IP- 608142, to Middlesex University and Partners. Simone Kriglstein was supported by CVAST (funded by the Austrian Federal Ministry of Science, Research, and Economy in the exceptional Laura Bassi Centres of Excellence initiative, project nr: 822746).


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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Simone Kriglstein
    • 1
  • Johanna Haider
    • 1
  • Günter Wallner
    • 2
  • Margit Pohl
    • 1
  1. 1.Vienna University of TechnologyViennaAustria
  2. 2.University of Applied Arts ViennaViennaAustria

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