Now showing items 1-20 of 59

    • A Random Sampling O(n) Force-calculation Algorithm for Graph Layouts 

      Gove, Robert (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      This paper proposes a linear-time repulsive-force-calculation algorithm with sub-linear auxiliary space requirements, achieving an asymptotic improvement over the Barnes-Hut and Fast Multipole Method force-calculation ...
    • A Stable Graph Layout Algorithm for Processes 

      Mennens, Robin; Scheepens, Roeland; Westenberg, Michel (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Process mining enables organizations to analyze data about their (business) processes. Visualization is key to gaining insight into these processes and the associated data. Process visualization requires a high-quality ...
    • Efficient Optimal Overlap Removal: Algorithms and Experiments 

      Meulemans, Wouter (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Motivated by visualizing spatial data using proportional symbols, we study the following problem: given a set of overlapping squares of varying sizes, minimally displace the squares as to remove the overlap while maintaining ...
    • Capture & Analysis of Active Reading Behaviors for Interactive Articles on the Web 

      Conlen, Matthew; Kale, Alex; Heer, Jeffrey (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Journalists, educators, and technical writers are increasingly publishing interactive content on the web. However, popular analytics tools provide only coarse information about how readers interact with individual pages, ...
    • netflower: Dynamic Network Visualization for Data Journalists 

      Stoiber, Christina; Rind, Alexander; Grassinger, Florian; Gutounig, Robert; Goldgruber, Eva; Sedlmair, Michael; Emrich, Štefan; Aigner, Wolfgang (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Journalists need visual interfaces that cater to the exploratory nature of their investigative activities. In this paper, we report on a four-year design study with data journalists. The main result is netflower, a visual ...
    • Linking and Layout: Exploring the Integration of Text and Visualization in Storytelling 

      Zhi, Qiyu; Ottley, Alvitta; Metoyer, Ronald (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Modern web technologies are enabling authors to create various forms of text visualization integration for storytelling. This integration may shape the stories' flow and thereby affect the reading experience. In this paper, ...
    • Investigating the Manual View Specification and Visualization by Demonstration Paradigms for Visualization Construction 

      Saket, Bahador; Endert, Alex (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Abstract Interactivity plays an important role in data visualization. Therefore, understanding how people create visualizations given different interaction paradigms provides empirical evidence to inform interaction design. ...
    • InsideInsights: Integrating Data-Driven Reporting in Collaborative Visual Analytics 

      Mathisen, Andreas; Horak, Tom; Klokmose, Clemens Nylandsted; Grønbæk, Kaj; Elmqvist, Niklas (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Analyzing complex data is a non-linear process that alternates between identifying discrete facts and developing overall assessments and conclusions. In addition, data analysis rarely occurs in solitude; multiple collaborators ...
    • Augmenting Tactile 3D Data Navigation With Pressure Sensing 

      Wang, Xiyao; Besançon, Lonni; Ammi, Mehdi; Isenberg, Tobias (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      We present a pressure-augmented tactile 3D data navigation technique, specifically designed for small devices, motivated by the need to support the interactive visualization beyond traditional workstations. While touch ...
    • Segmentifier: Interactive Refinement of Clickstream Data 

      Dextras-Romagnino, Kimberly; Munzner, Tamara (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Clickstream data has the potential to provide insights into e-commerce consumer behavior, but previous techniques fall short of handling the scale and complexity of real-world datasets because they require relatively clean ...
    • Topic Tomographies (TopTom): a Visual Approach to Distill Information From Media Streams 

      Gobbo, Beatrice; Balsamo, Duilio; Mauri, Michele; Bajardi, Paolo; Panisson, André; CIUCCARELLI, PAOLO (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      In this paper we present TopTom, a digital platform whose goal is to provide analytical and visual solutions for the exploration of a dynamic corpus of user-generated messages and media articles, with the aim of i) distilling ...
    • Bird's-Eye - Large-Scale Visual Analytics of City Dynamics using Social Location Data 

      Krueger, Robert; Han, Qi; Ivanov, Nikolay; Mahtal, Sanae; Thom, Dennis; Pfister, Hanspeter; Ertl, Thomas (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      The analysis of behavioral city dynamics, such as temporal patterns of visited places and citizens' mobility routines, is an essential task for urban and transportation planning. Social media applications such as Foursquare ...
    • Route-Aware Edge Bundling for Visualizing Origin-Destination Trails in Urban Traffic 

      Zeng, Wei; Shen, Qiaomu; Jiang, Yuzhe; Telea, Alexandru (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Origin-destination (OD) trails describe movements across space. Typical visualizations thereof use either straight lines or plot the actual trajectories. To reduce clutter inherent to visualizing large OD datasets, bundling ...
    • Focus+Context Exploration of Hierarchical Embeddings 

      Höllt, Thomas; Vilanova, Anna; Pezzotti, Nicola; Lelieveldt, Boudewijn P. F.; Hauser, Helwig (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Hierarchical embeddings, such as HSNE, address critical visual and computational scalability issues of traditional techniques for dimensionality reduction. The improved scalability comes at the cost of the need for increased ...
    • Hybrid Touch/Tangible Spatial 3D Data Selection 

      Besançon, Lonni; Sereno, Mickael; Yu, Lingyun; Ammi, Mehdi; Isenberg, Tobias (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      We discuss spatial selection techniques for three-dimensional datasets. Such 3D spatial selection is fundamental to exploratory data analysis. While 2D selection is efficient for datasets with explicit shapes and structures, ...
    • Designing Animated Transitions to Convey Aggregate Operations 

      Kim, Younghoon; Correll, Michael; Heer, Jeffrey (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Data can be aggregated in many ways before being visualized in charts, profoundly affecting what a chart conveys. Despite this importance, the type of aggregation is often communicated only via axis titles. In this paper, ...
    • Kyrix: Interactive Pan/Zoom Visualizations at Scale 

      Tao, Wenbo; Liu, Xiaoyu; Wang, Yedi; Battle, Leilani; Demiralp, Çagatay; Chang, Remco; Stonebraker, Michael (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Pan and zoom are basic yet powerful interaction techniques for exploring large datasets. However, existing zoomable UI toolkits such as Pad++ and ZVTM do not provide the backend database support and data-driven primitives ...
    • Evaluating Image Quality Measures to Assess the Impact of Lossy Data Compression Applied to Climate Simulation Data 

      Baker, Allison; Hammerling, Dorit; Turton, Terece (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      Applying lossy data compression to climate model output is an attractive means of reducing the enormous volumes of data generated by climate models. However, because lossy data compression does not exactly preserve the ...
    • Analysis of Decadal Climate Predictions with User-guided Hierarchical Ensemble Clustering 

      Kappe, Christopher; Böttinger, Michael; Leitte, Heike (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      In order to gain probabilistic results, ensemble simulation techniques are increasingly applied in the weather and climate sciences (as well as in various other scientific disciplines). In many cases, however, only mean ...
    • IGM-Vis: Analyzing Intergalactic and Circumgalactic Medium Absorption Using Quasar Sightlines in a Cosmic Web Context 

      Burchett, Joseph N.; Abramov, David; Otto, Jasmine Tan; Artanegara, Cassia; Prochaska, Jason Xavier; Forbes, Angus G. (The Eurographics Association and John Wiley & Sons Ltd., 2019)
      We introduce IGM-Vis, a novel astrophysics visualization and data analysis application for investigating galaxies and the gas that surrounds them in context with their larger scale environment, the Cosmic Web. Environment ...