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|a 10.1109/TVCG.2019.2934786
|2 doi
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|a eng
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| 100 |
1 |
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|a Jardine, Nicole
|e verfasserin
|4 aut
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| 245 |
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|a The Perceptual Proxies of Visual Comparison
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|c 2020
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|a Text
|b txt
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|a ƒaComputermedien
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|a Date Completed 04.01.2021
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|a Date Revised 04.01.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Perceptual tasks in visualizations often involve comparisons. Of two sets of values depicted in two charts, which set had values that were the highest overall? Which had the widest range? Prior empirical work found that the performance on different visual comparison tasks (e.g., "biggest delta", "biggest correlation") varied widely across different combinations of marks and spatial arrangements. In this paper, we expand upon these combinations in an empirical evaluation of two new comparison tasks: the "biggest mean" and "biggest range" between two sets of values. We used a staircase procedure to titrate the difficulty of the data comparison to assess which arrangements produced the most precise comparisons for each task. We find visual comparisons of biggest mean and biggest range are supported by some chart arrangements more than others, and that this pattern is substantially different from the pattern for other tasks. To synthesize these dissonant findings, we argue that we must understand which features of a visualization are actually used by the human visual system to solve a given task. We call these perceptual proxies. For example, when comparing the means of two bar charts, the visual system might use a "Mean length" proxy that isolates the actual lengths of the bars and then constructs a true average across these lengths. Alternatively, it might use a "Hull Area" proxy that perceives an implied hull bounded by the bars of each chart and then compares the areas of these hulls. We propose a series of potential proxies across different tasks, marks, and spatial arrangements. Simple models of these proxies can be empirically evaluated for their explanatory power by matching their performance to human performance across these marks, arrangements, and tasks. We use this process to highlight candidates for perceptual proxies that might scale more broadly to explain performance in visual comparison
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|a Journal Article
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| 650 |
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|a Research Support, N.I.H., Intramural
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| 650 |
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 700 |
1 |
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|a Ondov, Brian D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Elmqvist, Niklas
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Franconeri, Steven
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on visualization and computer graphics
|d 1996
|g 26(2020), 1 vom: 22. Jan., Seite 1012-1021
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|g volume:26
|g year:2020
|g number:1
|g day:22
|g month:01
|g pages:1012-1021
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| 856 |
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|u http://dx.doi.org/10.1109/TVCG.2019.2934786
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