Browsing by Author "Mayr, Eva"

Now showing 1 - 3 of 3
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    On Inconvenient Images: Exploring the Design Space of Engaging Climate Change Visualizations for Public Audiences
    (The Eurographics Association, 2019) Windhager, Florian; Schreder, Günther; Mayr, Eva; Bujack, Roxana and Feige, Kathrin and Rink, Karsten and Zeckzer, Dirk
    If there ever was a model theme for information visualization, climate change arguably checks all the boxes. Omnipresent and relevant, yet abstract and statistical by nature, as well as invisible for the naked eye - climate change is a subject matter in need for perception and cognition support par excellence. Consequently, a large number of data journalists and science communicators utilize visual representations of climate change data to provide (a) information, and to (b) raise consciousness and encourage behavioral adaptation. Multiple design strategies have been developed to make the complex (non-)phenomenon accessible for visual perception and reasoning of public audiences. Despite of its obvious societal relevance, the visualization community has not had a systematic look at this nascent application field until now. With this paper we aim to close this gap and survey climate change visualizations to explore their design space. With specific regard to visualizations geared to inform non-expert users in the context of journalism and science communication, we analyze a sample of representations to document design choices and communication strategies, including options of persuasive and engaging design.
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    Shapes of Time: Visualizing Set Changes Over Time in Cultural Heritage Collections
    (The Eurographics Association, 2019) Salisu, Saminu; Mayr, Eva; Filipov, Velitchko Andreev; Leite, Roger A.; Miksch, Silvia; Windhager, Florian; Madeiras Pereira, João and Raidou, Renata Georgia
    In cultural heritage collections, categorization is a central technique used to distinguish cultural movements, styles, or genres. For that end, objects are tagged with set-typed metadata and other information, such as time of origin. Visualizations can communicate how such sets organize a collection - and how they change over time. But existing interfaces fall short of a) representing an overview of temporal set-developments in an integrated fashion and b) of representing the set elements (i.e., the cultural objects) themselves to be contemplated on demand. Against this background, we introduce two integrated visualization techniques - a superimposition and a space-time cube view - depicting the development of sets and their elements over time. We share first results from a qualitative evaluation with casual users and outline open challenges for future research.
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    Trust in Information Visualization
    (The Eurographics Association, 2019) Mayr, Eva; Hynek, Nicole; Salisu, Saminu; Windhager, Florian; Kosara, Robert and Lawonn, Kai and Linsen, Lars and Smit, Noeska
    Trust is an important factor that mediates whether a user will rely and build on the information displayed in a visualization. Research in other fields shows that there are different mechanisms of trust building: Users might elaborate the information deeply and gain a good understanding of the uncertainties in the data and quality of the information. But they might also use superficial cues as indicators for trust. Which processes are activated depends on the trustworthiness on the side of the visualization and on the trust perception by the users. We lay out challenges for future research to further improve our understanding of trust in information visualization.