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Issue No.12 - Dec. (2012 vol.18)
pp: 2496-2505
This paper presents two linked empirical studies focused on uncertainty visualization. The experiments are framed from two conceptual perspectives. First, a typology of uncertainty is used to delineate kinds of uncertainty matched with space, time, and attribute components of data. Second, concepts from visual semiotics are applied to characterize the kind of visual signification that is appropriate for representing those different categories of uncertainty. This framework guided the two experiments reported here. The first addresses representation intuitiveness, considering both visual variables and iconicity of representation. The second addresses relative performance of the most intuitive abstract and iconic representations of uncertainty on a map reading task. Combined results suggest initial guidelines for representing uncertainty and discussion focuses on practical applicability of results.
data visualisation, map reading task, visual semiotics, uncertainty visualization, typology, representation intuitiveness, visual variable, intuitive abstract, iconic representations, Uncertainty, Visual analytics, Semiotics, Syntactics, semiotics, Uncertainty visualization, uncertainty categories, visual variables
A. M. MacEachren, R. E. Roth, J. O'Brien, B. Li, D. Swingley, M. Gahegan, "Visual Semiotics & Uncertainty Visualization: An Empirical Study", IEEE Transactions on Visualization & Computer Graphics, vol.18, no. 12, pp. 2496-2505, Dec. 2012, doi:10.1109/TVCG.2012.279
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