Browsing by Author "Nagel, Till"

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    An Initial Visual Analysis of German City Dashboards
    (The Eurographics Association, 2023) Huber, Christoph; Nagel, Till; Stuckenschmidt, Heiner; Gillmann, Christina; Krone, Michael; Lenti, Simone
    City dashboards are powerful tools for quickly understanding various urban phenomena through visualizing urban data using various techniques. In this paper, we investigate the common data sets used, and the most frequently employed visualization techniques in city dashboards. We reviewed 16 publicly available dashboards from 42 cities that are part of German smart city programs and have a high level of digitization. Through analysis of the visualization techniques used, we present our results visually and discuss our findings.
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    Supporting Medical Personnel at Analyzing Chronic Lung Diseases with Interactive Visualizations
    (The Eurographics Association, 2023) Warnking, Rene P.; Scheer, Jan; Trinkmann, Frederik; Siegel, Fabian; Nagel, Till; Gillmann, Christina; Krone, Michael; Lenti, Simone
    We present a visualization system for medical practitioners to analyze lung function data collected at different points in time. In particular, our approach aims to solve the problems practitioners encounter in their daily work life when they have to consult different text-based documents to get access to the same data we provide in a single interface. To test the suitability of our system, we conducted a formative study where participants used our system to answer both simple and complex questions previously designed in collaboration with a domain expert. Our results indicate that our target users can easily work with our system and use it to answer both types of questions.