Now showing items 8-27 of 50

    • dPSO-Vis: Topology-based Visualization of Discrete Particle Swarm Optimization 

      Volke, Sebastian; Middendorf, Martin; Hlawitschka, Mario; Kasten, Jens; Zeckzer, Dirk; Scheuermann, Gerik (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Particle swarm optimization (PSO) is a metaheuristic that has been applied successfully to many continuous and combinatorial optimization problems, e.g., in the fields of economics, engineering, and natural sciences. In ...
    • EvalBench: A Software Library for Visualization Evaluation 

      Aigner, Wolfgang; Hoffmann, Stephan; Rind, Alexander (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      It is generally acknowledged in visualization research that it is necessary to evaluate visualization artifacts in order to provide empirical evidence on their effectiveness and efficiency as well as their usability and ...
    • Evaluating Isosurfaces with Level-set-based Information Maps 

      Wei, Tzu-Hsuan; Lee, Teng-Yok; Shen, Han-Wei (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      While isosurfaces have been widely used for scalar data visualization, it is often difficult to determine if the selected isosurfaces for visualization are sufficient to represent the entire scalar field. In this paper, ...
    • Evaluation of Attention-Guiding Video Visualization 

      Kurzhals, Kuno; Höferlin, Markus; Weiskopf, Daniel (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We investigate four different variants of attention-guiding video visualization techniques that aim to help users distribute their attention equally among potential objects of interest: bounding box visualization, ...
    • Evolutionary Visual Exploration: Evaluation With Expert Users 

      Boukhelifa, Nadia; Cancino, Waldo; Bezerianos, Anastasia; Lutton, Evelyne (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We present an Evolutionary Visual Exploration (EVE) system that combines visual analytics with stochastic optimisation to aid the exploration of multidimensional datasets characterised by a large number of possible views ...
    • ExPlates: Spatializing Interactive Analysis to Scaffold Visual Exploration 

      Javed, Waqas; Elmqvist, Niklas (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Visual exploration involves using visual representations to investigate data where the goals of the process are unclear and poorly defined. However, this often places unduly high cognitive load on the user, particularly ...
    • Fingerprint Matrices: Uncovering the Dynamics of Social Networks in Prose Literature 

      Oelke, Daniela; Kokkinakis, Dimitrios; Keim, Daniel A. (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      In prose literature often complex dynamics of interpersonal relationships can be observed between the different characters. Traditionally, node-link diagrams are used to depict the social network of a novel. However, static ...
    • Gestaltlines 

      Brandes, Ulrik; Nick, Bobo; Rockstroh, Brigitte; Steffen, Astrid (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We propose a general technique to visualize multivariate data sequences. It is based on a symbiotic combination of three powerful concepts from information visualization: sparklines, glyphs and gestalt theory. By visualizing ...
    • HiFiVE: A Hilbert Space Embedding of Fiber Variability Estimates for Uncertainty Modeling and Visualization 

      Schultz, Thomas; Schlaffke, Lara; Schölkopf, Bernhard; Schmidt-Wilcke, Tobias (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Obtaining reproducible fiber direction estimates from diffusion MRI is crucial for successful fiber tracking. Modeling and visualizing the probability distribution of the inferred fiber directions is an important step in ...
    • imMens: Real-time Visual Querying of Big Data 

      Liu, Zhicheng; Jiang, Biye; Heer, Jeffrey (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Data analysts must make sense of increasingly large data sets, sometimes with billions or more records.We present methods for interactive visualization of big data, following the principle that perceptual and interactive ...
    • An Information-Theoretic Observation Channel for Volume Visualization 

      Bramon, Roger; Ruiz, Marc; Bardera, Anton; Boada, Imma; Feixas, Miquel; Sbert, Mateu (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Different quality metrics have been proposed in the literature to evaluate how well a visualization represents the underlying data. In this paper, we present a new information-theoretic framework that quantifies the ...
    • An Interactive Analysis and Exploration Tool for Epigenomic Data 

      Younesy, Hamidreza; Nielsen, Cydney B.; Möller, Torsten; Alder, Olivia; Cullum, Rebecca; Lorincz, Matthew C.; Karimi, Mohammad M.; Jones, Steven J. M. (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      In this design study, we present an analysis and abstraction of the data and tasks related to the domain of epigenomics, and the design and implementation of an interactive tool to facilitate data analysis and visualization ...
    • Interactive Extraction and Tracking of Biomolecular Surfaces Features 

      Krone, Michael; Reina, Guido; Schulz, Christoph; Kulschewski, Tobias; Pleiss, Jürgen; Ertl, Thomas (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We present a coordinated-view application for the analysis of molecular surface features like cavities, channels and pockets. Our tool employs object-space ambient occlusion for the detection of such features and tracks ...
    • Interactive Ray Casting of Geodesic Grids 

      Xie, Jinrong; Yu, Hongfeng; Ma, Kwan-Liu (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Geodesic grids are commonly used to model the surface of a sphere and are widely applied in numerical simulations of geoscience applications. These applications range from biodiversity, to climate change and to ocean ...
    • Mass-Dependent Integral Curves in Unsteady Vector Fields 

      Günther, Tobias; Kuhn, Alexander; Kutz, Benjamin; Theisel, Holger (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Recent research in flow visualization is focusing on the analysis of time-dependent, but mass-less particles. However, in many application scenarios, the mass of particles - and their resulting inertia - is essential in ...
    • Maximum Entropy Summary Trees 

      Karloff, Howard; Shirley, Kenneth E. (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      Given a very large, node-weighted, rooted tree on, say, n nodes, if one has only enough space to display a knode summary of the tree, what is the most informative way to draw the tree? We define a type of weighted tree ...
    • Nonparametric Models for Uncertainty Visualization 

      Pöthkow, Kai; Hege, Hans-Christian (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      An uncertain (scalar, vector, tensor) field is usually perceived as a discrete random field with a priori unknown probability distributions. To compute derived probabilities, e.g. for the occurrence of certain features, ...
    • Preface and Table of Contents 

      B. Preim, P. Rheingans, and H. Theisel (The Eurographics Association and Blackwell Publishing Ltd., 2013)
    • A Primal/ Dual Representation for Discrete Morse Complexes on Tetrahedral Meshes 

      Weiss, Kenneth; Iuricich, Federico; Fellegara, Riccardo; Floriani, Leila De (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      We consider the problem of computing discrete Morse and Morse-Smale complexes on an unstructured tetrahedral mesh discretizing the domain of a 3D scalar field. We use a duality argument to define the cells of the descending ...
    • Progressive High-Quality Response Surfaces for Visually Guided Sensitivity Analysis 

      Demir, Ismael; Westermann, Rüdiger (The Eurographics Association and Blackwell Publishing Ltd., 2013)
      In this paper we present a technique which allows us to perform high quality and progressive response surface prediction from multidimensional input samples in an efficient manner. We utilize kriging interpolation to ...