Extending the Utility of Treemaps with Flexible Hierarchy (2004)

TitleExtending the Utility of Treemaps with Flexible Hierarchy (2004)
Publication TypeReports
Year of Publication2005
AuthorsChintalapani G, Plaisant C, Shneiderman B
Series TitleInstitute for Systems Research Technical Reports
Date Published2005///
KeywordsTechnical Report

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.