TR2016-032

Treemaps and the Visual Comparison of Hierarchical Multidimensional Data


    •  Wittenburg, K.B.; Turchi, T., "Treemaps and the Visual Comparison of Hierarchical Multidimensional Data", International Working Conference on Advanced Visual Interfaces (AVI), DOI: 10.1145/2909132.2909286, June 2016.
      BibTeX Download PDF
      • @inproceedings{Wittenburg2016jun,
      • author = {Wittenburg, K.B. and Turchi, T.},
      • title = {Treemaps and the Visual Comparison of Hierarchical Multidimensional Data},
      • booktitle = {International Working Conference on Advanced Visual Interfaces (AVI)},
      • year = 2016,
      • month = jun,
      • doi = {10.1145/2909132.2909286},
      • url = {http://www.merl.com/publications/TR2016-032}
      • }
  • Research Area:

    Human-Computer Interaction


Treemaps have the desirable property of presenting overviews along with details of data and thus are of interest in visualizations of multi-attribute tabular data with attribute hierarchies. However, the original treemap algorithms and most subsequent variations are hampered in making parallel structures in a hierarchical data structure visually comparable. Structurally parallel elements are not aligned, making it difficult to compare them visually. We propose a method that allows for proportional and non-proportional subdivisions of subtrees while preserving visual alignment of parallel structures. We extend the framework so that other types of data visualizations can be placed within the graphical areas of a treemap to allow for the visual comparison of a broad collection of data types including temporal data.