Evaluating Visualizations of Geospatial Uncertainty
نویسندگان
چکیده
Many techniques have been proposed for visualizing uncertainty in geospatial data. However previous empirical research on the effectiveness of visualizations of geospatial uncertainty has focused on user intuitions rather than objective measures of performance when reasoning under uncertainty (MacEachren, et. al, 2012). In two experiments, we examined the effectiveness of four alternative visualizations for representing geospatial uncertainty when reasoning about location data. Our task was presented in the context of a mobile mapping scenario where GPS satellite location readings produced different levels of uncertainty. Given a known location and the estimates of two smart phones of that known location, participants judged which smartphones produced the better location reading, taking uncertainty into account.
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