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Proceedings Paper

Visualizing uncertainty for geographical information in the global terrorism database
Author(s): Josh Jones; Remco Chang; Thomas Butkiewicz; William Ribarsky
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Paper Abstract

Presenting information on a geopolitical map can offer powerful insight into a problem by leveraging an individual's innate capacity to discover patterns and to use map-related cues to incorporate pre-existing knowledge. This mode of presentation is not without its flaws, however, as the act of placing information at specific coordinates can imply a false sense of the data's geo-spatial certainty. Traditional uncertainty visualization techniques, such as those that change primitive attributes or employ animation, can create large amounts of clutter or actively distract when visualizing geospatially uncertain events within large datasets. To effectively identify geo-spatial trends within the Global Terrorism Database of the START Center, we have developed a novel usage of squarified treemaps that maintains the strengths of traditional map-viewing but incorporates some measure of data verity.

Paper Details

Date Published: 15 April 2008
PDF: 9 pages
Proc. SPIE 6983, Defense and Security 2008: Special Sessions on Food Safety, Visual Analytics, Resource Restricted Embedded and Sensor Networks, and 3D Imaging and Display, 69830E (15 April 2008); doi: 10.1117/12.777695
Show Author Affiliations
Josh Jones, Winthrop Univ. (United States)
Remco Chang, Univ. of North Carolina at Charlotte (United States)
Thomas Butkiewicz, Univ. of North Carolina at Charlotte (United States)
William Ribarsky, Univ. of North Carolina at Charlotte (United States)


Published in SPIE Proceedings Vol. 6983:
Defense and Security 2008: Special Sessions on Food Safety, Visual Analytics, Resource Restricted Embedded and Sensor Networks, and 3D Imaging and Display
Moon S. Kim; Kaunglin Chao; William J. Tolone; William Ribarsky; Sergey I. Balandin; Bahram Javidi; Shu-I Tu, Editor(s)

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