SCALABLE INTERACTIVE VISUALIZATION OF HIERARCHICAL KNOWLEDGE REPOSITORIES
Wolfgang Kienreich, Christin Seifert · University of Twente Research Information · 2009
Spatial tesselations based on Voronoi diagrams have been extensively used in Information Visualization and Visual Analytics to represent hierarchical knowledge repositories. This paper introduces a visualization framework which combines Voronoi diagrams and level of detail techniques to address precision, performance and usability issues identified in existing systems. The framework facilitates the interactive visualization of very large repositories organized into a hierarchy of unlimited depth using two or three visual dimensions.