Now showing items 1-20 of 25

    • Visualizing Dynamic Brain Networks Using an Animated Dual-Representation 

      Ma, Chihua; Kenyon, Robert V.; Forbes, Angus G.; Berger-Wolf, Tanya; Slater, Bernard J.; Llano, Daniel A. (The Eurographics Association, 2015)
      Dynamic network visualization has been a challenging topic for dynamic networks analysis, especially for spatially embedded networks like brain networks. In this paper, we present an animated interactive visualization ...
    • Visual Analytics of Work Behavior Data - Insights on Individual Differences 

      Koldijk, Saskia; Bernard, Jürgen; Ruppert, Tobias; Kohlhammer, Jörn; Neerincx, Mark; Kraaij, Wessel (The Eurographics Association, 2015)
      Stress in working environments is a recent concern. We see potential in collecting sensor data to detect patterns in work behavior with potential danger to well-being. In this paper, we describe how we applied visual ...
    • Exploratory Text Analysis using Lexical Episode Plots 

      Gold, Valentin; Rohrdantz, Christian; El-Assady, Mennatallah (The Eurographics Association, 2015)
      In this paper, we present Lexical Episode Plots, a novel automated text-mining and visual analytics approach for exploratory text analysis. In particular, we first describe an algorithm for automatically annotating text ...
    • Task Taxonomy for Cartograms 

      Nusrat, Sabrina; Kobourov, Stephen (The Eurographics Association, 2015)
      Cartograms are maps in which areas of geographic regions (countries, states) appear in proportion to some variable of interest (population, income). Despite the popularity of cartograms and the large number of cartogram ...
    • Analyzing the Evolution of the Internet 

      Johnson, Thienne; Acedo, Carlos; Kobourov, Stephen; Nusrat, Sabrina (The Eurographics Association, 2015)
      Existing representations of the Internet do not provide information on why countries have a bigger Internet presence (e.g., Internet Service Providers) than others. In this paper we evaluate four geo-economic parameters ...
    • Towards Understanding Enjoyment and Flow in Information Visualization 

      Saket, Bahador; Scheidegger, Carlos; Kobourov, Stephen G. (The Eurographics Association, 2015)
      Traditionally, evaluation studies in information visualization have measured effectiveness by assessing performance time and accuracy. More recently, there has been a concerted effort to understand aspects beyond time and ...
    • Bridging the Gap of Domain and Visualization Experts with a Liaison 

      Simon, Svenja; Mittelstädt, Sebastian; Keim, Daniel A.; Sedlmair, Michael (The Eurographics Association, 2015)
      We introduce the role Liaison for design study projects. With considerable expertise in visualization and the application domain, a Liaison can help to foster richer and more effective interdisciplinary communication in ...
    • Visualization and Analysis of Large-Scale Atomistic Simulations of Plasma-Surface Interactions 

      Widanagamaachchi, Wathsala; Hammond, Karl; Lo, Li-Ta; Wirth, Brian; Samsel, Francesca; Sewell, Christopher; Ahrens, James; Pascucci, Valerio (The Eurographics Association, 2015)
      We present a simulation-visualization pipeline that uses the LAMMPS Molecular Dynamics Simulator and the Visualization Toolkit to create a visualization and analysis environment for atomistic simulations of plasma-surface ...
    • Exploratory Performance Analysis and Tuning of Parallel Interactive Volume Visualization on Large Displays 

      Panagiotidis, Alexandros; Frey, Steffen; Ertl, Thomas (The Eurographics Association, 2015)
      We present an exploratory approach to performance analysis and tuning of interactive parallel volume visualization for large displays. While traditional approaches target non-interactive applications and focus on separate ...
    • A Quality-Preserving Cartesian to Body-Centered Cubic Downsampling Transform 

      Alim, Usman R.; Oliveira, Thiago Valentin de (The Eurographics Association, 2015)
      The body-centered cubic lattice is the optimal sampling lattice in three dimensions. However, most volumetric datasets are acquired on the well-known Cartesian cubic lattice. In order to leverage the approximation capabilities ...
    • Improved Sparse Seeding for 3D Electrostatic Field Lines 

      Scharnowski, Katrin; Boblest, Sebastian; Ertl, Thomas (The Eurographics Association, 2015)
      We present an improved seeding strategy for sparse visualization of electrostatic fields. By analyzing the curvature of the field lines, we extract points of extremal field strength between charges of different sign and ...
    • Ambient Grids: Maintain Context-Awareness via Aggregated Off-Screen Visualization 

      Jäckle, Dominik; Stoffel, Florian; Kwon, Bum Chul; Sacha, Dominik; Stoffel, Andreas; Keim, Daniel A. (The Eurographics Association, 2015)
      When exploring large spatial datasets, zooming and panning interactions often lead to the loss of contextual overview. Existing overview-plus-detail approaches allow users to view context while inspecting details, but they ...
    • OceanPaths: Visualizing Multivariate Oceanography Data 

      Nobre, Carolina; Lex, Alexander (The Eurographics Association, 2015)
      Geographical datasets are ubiquitous in oceanography. While map-based visualizations are useful for many different domains, they can suffer from cluttering and overplotting issues when used for multivariate data sets. As ...
    • Dynamic Scheduling for Progressive Large-Scale Visualization 

      Flatken, Markus; Berres, Anne; Merkel, Jonas; Hotz, Ingrid; Gerndt, Andreas; Hagen, Hans (The Eurographics Association, 2015)
      The ever-increasing compute capacity of high-performance systems enables scientists to simulate physical phenomena with a high spatial and temporal accuracy. Thus, the simulation output can yield dataset sizes of many ...
    • Clustering Moment Invariants to Identify Similarity within 2D Flow Fields 

      Bujack, Roxana; Kasten, Jens; Natarajan, Vijay; Scheuermann, Gerik; Joy, Kenneth I. (The Eurographics Association, 2015)
      Moment invariants have proven to be a useful tool for the detection of patterns in scalar and vector fields. By their means, an interesting feature can be detected in a data set independent of its exact orientation, position, ...
    • A Testbed Combining Visual Perception Models for Geographic Gaze Contingent Displays 

      Bektas, Kenan; Cöltekin, Arzu; Krüger, Jens; Duchowski, Andrew T. (The Eurographics Association, 2015)
      We present a testbed featuring gaze-contingent displays (GCDs), in which we combined multiple models of the human visual system (HVS) to manage the visual level of detail. GCDs respond to the viewer's gaze in real-time, ...
    • Visual Techniques to Support Exploratory Analysis of Temporal Graph Data 

      Kerracher, Natalie; Kennedy, Jessie; Chalmers, Kevin; Graham, Martin (The Eurographics Association, 2015)
      Recently, much research has focused on developing techniques for the visual representation of temporal graph data. This paper takes a wider look at the visual techniques involved in exploratory analysis of such data, ...
    • PoPI: Glyph Designs for Collaborative Filtering on Interactive Tabletops 

      Charleer, Sven; Klerkx, Joris; Duval, Erik (The Eurographics Association, 2015)
      Filtering data on a visualization can be a challenge when multiple people work on a shared visualization, for instance on an interactive tabletop. Visualizations can present data that satisfy the union of all user filters, ...
    • Card Sorting Techniques for Domain Characterization in Problem-driven Visualization Research 

      Sakai, Ryo; Aerts, Jan (The Eurographics Association, 2015)
      In a problem-driven visualization research, the domain characterization is fundamental to the design process of a visualization solution to enable insight and discovery. Complex, fuzzy and exploratory analysis tasks in a ...
    • WebGL-Enabled Remote Visualization of Smoothed Particle Hydrodynamics Simulations 

      Chandler, Jennifer; Obermaier, Harald; Joy, Kenneth I. (The Eurographics Association, 2015)
      Large-scale simulations are often performed on machines without the necessary graphics hardware for visualization. Transferring full resolution data to a suitable machine for visualization is impractical and undesirable. ...