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Issue No. 10 - Oct. (2012 vol. 18)
ISSN: 1077-2626
pp: 1744-1756
Christopher G. Healey , North Carolina State University, Raleigh
Brent M. Dennis , Massachusetts Institute of Technology, Lexington
This paper describes a new method to explore and discover within a large data set. We apply techniques from preference elicitation to automatically identify data elements that are of potential interest to the viewer. These "elements of interest (EOI)” are bundled into spatially local clusters, and connected together to form a graph. The graph is used to build camera paths that allow viewers to "tour” areas of interest (AOI) within their data. It is also visualized to provide wayfinding cues. Our preference model uses Bayesian classification to tag elements in a data set as interesting or not interesting to the viewer. The model responds in real time, updating the elements of interest based on a viewer's actions. This allows us to track a viewer's interests as they change during exploration and analysis. Viewers can also interact directly with interest rules the preference model defines. We demonstrate our theoretical results by visualizing historical climatology data collected at locations throughout the world.
Data visualization, Bayesian methods, Navigation, Data models, Cameras, Context awareness, visualization., Bayesian network, classification, navigation, preferences

C. G. Healey and B. M. Dennis, "Interest Driven Navigation in Visualization," in IEEE Transactions on Visualization & Computer Graphics, vol. 18, no. , pp. 1744-1756, 2012.
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