Type of Document	Dissertation
Author	Ball, Robert Glenn
URN	etd-08252006-103122
Title	Effects of Large, High-Resolution Displays for Geospatial Information Visualization
Degree	PhD
Department	Computer Science
Advisory Committee	Advisor Name Title Chris L. North Committee Chair Doug A. Bowman Committee Member George G. Robertson Committee Member L. Bill Carstensen Committee Member Manuel A. Perez-Quinonez Committee Member
Keywords	human-computer interaction large displays information visualization space scale
Date of Defense	2006-08-14
Availability	unrestricted
Abstract Geospatial visualizations are becoming a larger part of society. From using maps to go from one location to another to using battlefield visualizations to help the military, geospatial visualizations are becoming a larger part of people's lives. At the same time, large displays are becoming more prominent in people's lives. From large fifty-monitor tiled displays to dual monitor desktop systems people are using larger displays more often in their daily lives. This dissertation summarizes our work with large displays and geospatial visualizations. We show dramatic increases in performance of more than ten times performance improvement when using larger displays that offer a greater number of pixels. We show performance improvements for a range of tasks from simple navigation to complex pattern finding tasks. This dissertation contributes to the fields of human-computer interaction and information visualization in that it shows performance improvements as analytical force multipliers and explains why such performance exists. It explains how virtual navigation (mouse and keyboard input) correlates to physical navigation (body movement) to explain performance improvements. In addition, this dissertation explains how semantic zooming, space scale, task scale, and task type all are variables that influence human behavior in both navigation and performance. This dissertation addresses primarily geospatial information visualizations, but extends to other generic spatially oriented visualizations. The impacts of large displays for both geospatial information visualizations and generic spatially oriented visualizations are explained.
Files	Filename       Size       Approximate Download Time (Hours:Minutes:Seconds)     28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access    DisserationRobertBall.pdf 2.00 Mb 00:09:16 00:04:46 00:04:10 00:02:05 00:00:10   s05-074.pdf 53.08 Kb 00:00:14 00:00:07 00:00:06 00:00:03 < 00:00:01   s05-616.pdf 48.32 Kb 00:00:13 00:00:06 00:00:06 00:00:03 < 00:00:01   s05-616amend.pdf 57.09 Kb 00:00:15 00:00:08 00:00:07 00:00:03 < 00:00:01

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