Cascaded treemaps: examining the visibility and stability of structure in treemaps
GI '08 Proceedings of graphics interface 2008
The Shaping of Information by Visual Metaphors
IEEE Transactions on Visualization and Computer Graphics
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Treemap is a method of visualization to recognize a hierarchical structure of data using the size and arrangement of nested rectangles. A limitation of a treemap is the difficulty to discern the structure of a hierarchy. Several approaches have been proposed to improve the visibility of the hierarchical structure. These approaches involve the use of a border or padding to emphasize the hierarchical structure. However, this leads to a disparity between the node weight and the relative node size.