Now showing items 21-40 of 49

    • Fuzzy Contour Trees: Alignment and Joint Layout of Multiple Contour Trees 

      Lohfink, Anna-Pia; Wetzels, Florian; Lukasczyk, Jonas; Weber, Gunther H.; Garth, Christoph (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      We describe a novel technique for the simultaneous visualization of multiple scalar fields, e.g. representing the members of an ensemble, based on their contour trees. Using tree alignments, a graph-theoretic concept similar ...
    • Visual Analysis of the Finite-Time Lyapunov Exponent 

      Sagristà, Antoni; Jordan, Stefan; Sadlo, Filip (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      In this paper, we present an integrated visual analytics approach to support the parametrization and exploration of flow visualization based on the finite-time Lyapunov exponent. Such visualization of time-dependent flow ...
    • Fiber Surfaces for many Variables 

      Blecha, Christian; Raith, Felix; Präger, Arne Jonas; Nagel, Thomas; Kolditz, Olaf; Maßmann, Jobst; Röber, Niklas; Böttinger, Michael; Scheuermann, Gerik (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Scientific visualization deals with increasingly complex data consisting of multiple fields. Typical disciplines generating multivariate data are fluid dynamics, structural mechanics, geology, bioengineering, and climate ...
    • Extraction of Distinguished Hyperbolic Trajectories for 2D Time-Dependent Vector Field Topology 

      Hofmann, Lutz; Sadlo, Filip (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      This paper does two main contributions to 2D time-dependent vector field topology. First, we present a technique for robust, accurate, and efficient extraction of distinguished hyperbolic trajectories (DHT), the generative ...
    • Co-creating Visualizations: A First Evaluation with Social Science Researchers 

      Molina León, Gabriela; Breiter, Andreas (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Co-creation is a design method where designers and domain experts work together to develop a product. In this paper, we present and evaluate the use of co-creation to design a visual information system with social science ...
    • Structure and Empathy in Visual Data Storytelling: Evaluating their Influence on Attitude 

      Liem, Johannes; Perin, Charles; Wood, Jo (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      In the visualization community, it is often assumed that visual data storytelling increases memorability and engagement, making it more effective at communicating information. However, many assumptions about the efficacy ...
    • Short-Contact Touch-Manipulation of Scatterplot Matrices on Wall Displays 

      Riehmann, Patrick; Molina León, Gabriela; Reibert, Joshua; Echtler, Florian; Froehlich, Bernd (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      This paper presents a short-contact multitouch vocabulary for interacting with scatterplot matrices (SPLOMs) on wall-sized displays. Fling-based gestures overcome central interaction challenges of such large displays by ...
    • Phase Space Projection of Dynamical Systems 

      Bartolovic, Nemanja; Gross, Markus; Günther, Tobias (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Dynamical systems are commonly used to describe the state of time-dependent systems. In many engineering and control problems, the state space is high-dimensional making it difficult to analyze and visualize the behavior ...
    • Many At Once: Capturing Intentions to Create And Use Many Views At Once In Large Display Environments 

      Aurisano, Jillian; Kumar, Abhinav; Alsaiari, Abeer; Eugenio, Barbara Di; Johnson, Andrew E. (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      This paper describes results from an observational, exploratory study of visual data exploration in a large, multi-view, flexible canvas environment. Participants were provided with a set of data exploration sub-tasks ...
    • Quantitative Evaluation of Time-Dependent Multidimensional Projection Techniques 

      Vernier, Eduardo Faccin; Garcia, Rafael; Silva, Iron Prando da; Comba, João L. D.; Telea, Alexandru C. (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Dimensionality reduction methods are an essential tool for multidimensional data analysis, and many interesting processes can be studied as time-dependent multivariate datasets. There are, however, few studies and proposals ...
    • VisuaLint: Sketchy In Situ Annotations of Chart Construction Errors 

      Hopkins, Aspen K.; Correll, Michael; Satyanarayan, Arvind (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Chart construction errors, such as truncated axes or inexpressive visual encodings, can hinder reading a visualization, or worse, imply misleading facts about the underlying data. These errors can be caught by critical ...
    • Understanding the Design Space and Authoring Paradigms for Animated Data Graphics 

      Thompson, John R.; Liu, Zhicheng; Li, Wilmot; Stasko, John (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Creating expressive animated data graphics often requires designers to possess highly specialized programming skills. Alternatively, the use of direct manipulation tools is popular among animation designers, but these tools ...
    • Classifier-Guided Visual Correction of Noisy Labels for Image Classification Tasks 

      Bäuerle, Alex; Neumann, Heiko; Ropinski, Timo (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Training data plays an essential role in modern applications of machine learning. However, gathering labeled training data is time-consuming. Therefore, labeling is often outsourced to less experienced users, or completely ...
    • Boxer: Interactive Comparison of Classifier Results 

      Gleicher, Michael; Barve, Aditya; Yu, Xinyi; Heimerl, Florian (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Machine learning practitioners often compare the results of different classifiers to help select, diagnose and tune models. We present Boxer, a system to enable such comparison. Our system facilitates interactive exploration ...
    • PEAX: Interactive Visual Pattern Search in Sequential Data Using Unsupervised Deep Representation Learning 

      Lekschas, Fritz; Peterson, Brant; Haehn, Daniel; Ma, Eric; Gehlenborg, Nils; Pfister, Hanspeter (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      We present PEAX, a novel feature-based technique for interactive visual pattern search in sequential data, like time series or data mapped to a genome sequence. Visually searching for patterns by similarity is often ...
    • QUESTO: Interactive Construction of Objective Functions for Classification Tasks 

      Das, Subhajit; Xu, Shenyu; Gleicher, Michael; Chang, Remco; Endert, Alex (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Building effective classifiers requires providing the modeling algorithms with information about the training data and modeling goals in order to create a model that makes proper tradeoffs. Machine learning algorithms allow ...
    • A Visual Analytics Approach to Facilitate Crime Hotspot Analysis 

      Neto, José F. de Queiroz; Santos, Emanuele; Vidal, Creto Augusto; Ebert, David S. (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Computer-based technology has played a significant role in crime prevention over the past 30 years, especially with the popularization of spatial databases and crime mapping systems. Police departments frequently use hotspot ...
    • Ocupado: Visualizing Location-Based Counts Over Time Across Buildings 

      Oppermann, Michael; Munzner, Tamara (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      Understanding how spaces in buildings are being used is vital for optimizing space utilization, for improving resource allocation, and for the design of new facilities. We present a multi-year design study that resulted ...
    • Orchard: Exploring Multivariate Heterogeneous Networks on Mobile Phones 

      Eichmann, Philipp; Edge, Darren; Evans, Nathan; Lee, Bongshin; Brehmer, Matthew; White, Christopher (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      People are becoming increasingly sophisticated in their ability to navigate information spaces using search, hyperlinks, and visualization. But, mobile phones preclude the use of multiple coordinated views that have proven ...
    • VA-TRAC: Geospatial Trajectory Analysis for Monitoring, Identification, and Verification in Fishing Vessel Operations 

      Storm-Furru, Syver; Bruckner, Stefan (The Eurographics Association and John Wiley & Sons Ltd., 2020)
      In order to ensure sustainability, fishing operations are governed by many rules and regulations that restrict the use of certain techniques and equipment, specify the species and size of fish that can be harvested, and ...