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A Comparison of Geographical Propagation Visualizations

Vanessa Peña-Araya 1 Anastasia Bezerianos 1 Emmanuel Pietriga 1 
1 ILDA - Interacting with Large Data
Inria Saclay - Ile de France, LRI - Laboratoire de Recherche en Informatique
Abstract : Geographical propagation phenomena occur in multiple domains , such as in epidemiology and social media. Propagation dynamics are often complex, and visualizations play a key role in helping subject-matter experts understand and analyze them. However, there is little empirical data about the effectiveness of the various strategies used to visualize geographical propagation. To fill this gap, we conduct an experiment to evaluate the effectiveness of three strategies: an animated map, small-multiple maps, and a single map with glyphs. We compare them under five tasks that vary in one of the following dimensions: propagation scope, direction, speed, peaks, and spatial jumps. Our results show that small-multiple maps perform best overall, but that the effectiveness of each visualization varies depending on the task considered.
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Submitted on : Tuesday, March 17, 2020 - 2:14:36 PM
Last modification on : Sunday, June 26, 2022 - 2:47:54 AM
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Vanessa Peña-Araya, Anastasia Bezerianos, Emmanuel Pietriga. A Comparison of Geographical Propagation Visualizations. CHI '20 - 38th SIGCHI conference on Human Factors in computing systems, Apr 2020, Honolulu, United States. pp.223:1--223:14, ⟨10.1145/3313831.3376350⟩. ⟨hal-02510038⟩



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