Extending the Utility of Treemaps with Flexible Hierarchy (2004)
Extending the Utility of Treemaps with Flexible Hierarchy (2004)
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Date
2005
Authors
Chintalapani, Gouthami
Plaisant, Catherine
Shneiderman, Ben
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Abstract
Treemaps is a visualization technique for presenting hierarchical information on two dimensional displays. Prior implementations limit the visualization to pre-defined static hierarchies. Flexible hierarchy, a new capability of Treemap 4.0, enables users to define various hierarchies through dynamically selecting a series of data attributes so that they can discover patterns, clusters and outliers. This paper describes the design and implementation issues of flexible hierarchy. It then reports on a usability study which led to enhancements to the interface.